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ADS-917
14-Bit, 1MHz, Low-Power Sampling A/D Converters
FEATURES
* * * * * * * * 14-bit resolution 1MHz sampling rate Functionally complete; No missing codes Edge-triggered; No pipeline delays Small 24-pin DDIP or SMT package Low power, 1.9 Watts maximum Operates from 15V or 12V supplies Unipolar 0 to +10V input range
GENERAL DESCRIPTION
The ADS-917 is a high-performance, 14-bit, 1MHz sampling A/D converter. This device samples input signals up to Nyquist frequencies with no missing codes. The ADS-917 features outstanding dynamic performance including a THD of -80dB. Housed in a small 24-pin DDIP or SMT (gull-wing) package, the functionally complete ADS-917 contains a fast-settling sample-hold amplifier, a subranging (two-pass) A/D converter, a precise voltage reference, timing/control logic, and errorcorrection circuitry. Digital input and output levels are TTL. Requiring 15V (or 12V) and +5V supplies, the ADS-917 dissipates 1.9W (1.6W for 12V) maximum. The unit is offered with a unipolar input (0 to +10V). Models are available for use in either commercial (0 to +70C) or military (-55 to +125C) operating temperature ranges. Applications include radar, sonar, spectrum analysis, and graphic/medical imaging.
PIN 1 2 3 4 5 6 7 8 9 10 11 12
INPUT/OUTPUT CONNECTIONS
FUNCTION BIT 14 (LSB) BIT 13 BIT 12 BIT 11 BIT 10 BIT 9 BIT 8 BIT 7 BIT 6 BIT 5 BIT 4 BIT 3 PIN 24 23 22 21 20 19 18 17 16 15 14 13 FUNCTION -12V/-15V SUPPLY ANALOG GROUND +12V/+15V SUPPLY +10V REFERENCE OUT ANALOG INPUT ANALOG GROUND BIT 1 (MSB) BIT 2 START CONVERT EOC DIGITAL GROUND +5V SUPPLY
DAC 18 BIT 1 (MSB) 17 BIT 2 +10V REF. OUT 21 S2 FLASH ADC S/H ANALOG INPUT 20 - REGISTER + S1 BUFFER REGISTER REF DIGITAL CORRECTION LOGIC 12 BIT 3 11 BIT 4 10 BIT 5 9 8 7 6 5 4 3 2 1 BIT 6 BIT 7 BIT 8 BIT 9 BIT 10 BIT 11 BIT 12 BIT 13 BIT 14 (LSB)
START CONVERT 16 TIMING AND CONTROL LOGIC EOC 15
13 +5V SUPPLY
14 DIGITAL GROUND
22 +12V/+15V SUPPLY
19, 23 ANALOG GROUND
24 -12V/-15V SUPPLY
Figure 1. ADS-917 Functional Block Diagram
DATEL, Inc., 11 Cabot Boulevard, Mansfield, MA 02048-1151 (U.S.A.) * Tel: (508) 339-3000 Fax: (508) 339-6356 * For immediate assistance: (800) 233-2765
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ADS-917
ABSOLUTE MAXIMUM RATINGS
PARAMETERS +12V/+15V Supply (Pin 22) -12V/-15V Supply (Pin 24) +5V Supply (Pin 13) Digital Input (Pin 16) Analog Input (Pin 20) Lead Temperature (10 seconds) LIMITS 0 to +16 0 to -16 0 to +6 -0.3 to +VDD +0.3 -4 to +17 +300 UNITS Volts Volts Volts Volts Volts C
PHYSICAL/ENVIRONMENTAL
PARAMETERS Operating Temp. Range, Case ADS-917MC, GC ADS-917MM, GM Thermal Impedance jc ca Storage Temperature Package Type Weight MIN. 0 -55 TYP. -- -- MAX. +70 +125 UNITS C C
6 C/Watt 24 C/Watt -65 -- +150 C 24-pin, metal-sealed, ceramic DDIP or SMT 0.42 ounces (12 grams)
FUNCTIONAL SPECIFICATIONS
(TA = +25C, VCC = 15V (or 12V), +VDD = +5V, 1MHz sampling rate, and a minimum 1 minute warmup unless otherwise specified.) +25C ANALOG INPUT Input Voltage Range Input Resistance Input Capacitance DIGITAL INPUT Logic Levels Logic "1" Logic "0" Logic Loading "1" Logic Loading "0" Start Convert Positive Pulse Width STATIC PERFORMANCE Resolution Integral Nonlinearity (fin = 10kHz) Differential Nonlinearity (fin = 10kHz) Full Scale Absolute Accuracy Unipolar Offset Error (Tech Note 2) Gain Error (Tech Note 2) No Missing Codes (fin = 10kHz) DYNAMIC PERFORMANCE Peak Harmonics (-0.5dB) dc to 100kHz 100kHz to 500kHz Total Harmonic Distortion (-0.5dB) dc to 100kHz 100kHz to 500kHz Signal-to-Noise Ratio (w/o distortion, -0.5dB) dc to 100kHz 100kHz to 500kHz Signal-to-Noise Ratio (& distortion, -0.5dB) dc to 100kHz 100kHz to 500kHz Two-Tone Intermodulation Distortion (fin = 100kHz, 240kHz, fs = 1MHz, -0.5dB) Noise Input Bandwidth (-3dB) Small Signal (-20dB input) Large Signal (-0.5dB input) Feedthrough Rejection (fin = 500kHz) Slew Rate Aperture Delay Time Aperture Uncertainty S/H Acquisition Time (to 0.003%FSR, 10V step) Overvoltage Recovery Time A/D Conversion Rate -- -- -- -- 75 73 74 72 -- -- -- -- -- -- -- -- 530 -- 1 -87 -81 -85 -80 79 78 77 76 -87 300 7 5 84 60 20 5 570 400 -- -82 -76 -82 -76 -- -- -- -- -- -- -- -- -- -- -- -- 610 1000 -- -- -- -- -- 75 73 74 72 -- -- -- -- -- -- -- -- 530 -- 1 -87 -81 -85 -80 79 78 77 76 -86 400 7 5 84 60 20 5 570 400 -- -82 -76 -82 -76 -- -- -- -- -- -- -- -- -- -- -- -- 610 1000 -- -- -- -- -- 73 72 72 71 -- -- -- -- -- -- -- -- 530 -- 1 -85 -79 -84 -79 77 76 76 75 -85 600 7 5 84 60 20 5 570 400 -- -80 -74 -80 -74 -- -- -- -- -- -- -- -- -- -- -- -- 610 1000 -- dB dB dB dB dB dB dB dB dB Vrms MHz MHz dB V/s ns ps rms ns ns MHz -- -- -- -- -- -- 14 14 0.5 0.5 0.05 0.1 0.1 -- -- -- 0.95 0.1 0.2 0.25 -- -- -- -- -- -- -- 14 14 0.75 0.5 0.1 0.1 0.1 -- -- -- 0.95 0.2 0.2 0.25 -- -- -- -0.95 -- -- -- 14 14 1.5 0.75 0.15 0.15 0.25 -- -- -- +1.25 0.4 0.4 0.4 -- Bits LSB LSB %FSR %FSR % Bits +2.0 -- -- -- 20 -- -- -- -- 200 -- +0.8 +20 -20 -- +2.0 -- -- -- 20 -- -- -- -- 200 -- +0.8 +20 -20 -- +2.0 -- -- -- 20 -- -- -- -- 200 -- +0.8 +20 -20 -- Volts Volts A A ns MIN. -- -- -- TYP. 0 to +10 1 7 MAX. -- -- 15 MIN. -- -- -- 0 to +70C TYP. 0 to +10 1 7 MAX. -- -- 15 -55 to +125C MIN. -- -- -- TYP. 0 to +10 1 7 MAX. -- -- 15 UNITS Volts k pF
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+25C ANALOG OUTPUT Internal Reference Voltage Drift External Current DIGITAL OUTPUTS Logic Levels Logic "1" Logic "0" Logic Loading "1" Logic Loading "0" Delay, Falling Edge of EOC to Output Data Valid Output Coding POWER REQUIREMENTS, 15V Power Supply Ranges +15V Supply -15V Supply +5V Supply Power Supply Currents +15V Supply -15V Supply +5V Supply Power Dissipation Power Supply Rejection POWER REQUIREMENTS, 12V Power Supply Ranges +12V Supply -12V Supply +5V Supply Power Supply Currents +12V Supply -12V Supply +5V Supply Power Dissipation Power Supply Rejection +11.5 -11.5 +4.75 -- -- -- -- -- +12.0 -12.0 +5.0 +50 -40 +70 1.4 -- +12.5 -12.5 +5.25 +65 -48 +80 1.6 0.01 +11.5 -11.5 +4.75 -- -- -- -- -- +12.0 -12.0 +5.0 +50 -40 +70 1.4 -- +12.5 -12.5 +5.25 +65 -48 +80 1.6 0.01 +11.5 -11.5 +4.75 -- -- -- -- -- +12.0 -12.0 +5.0 +50 -40 +70 1.4 -- +12.5 -12.5 +5.25 +65 -48 +80 1.6 0.01 Volts Volts Volts mA mA mA Watts %FSR/%V +14.5 -14.5 +4.75 -- -- -- -- -- +15.0 -15.0 +5.0 +50 -41 +70 1.7 -- +15.5 -15.5 +5.25 +65 -50 +85 1.9 0.01 +14.5 -14.5 +4.75 -- -- -- -- -- +15.0 -15.0 +5.0 +50 -41 +70 1.7 -- +15.5 -15.5 +5.25 +65 -50 +85 1.9 0.01 +14.5 -14.5 +4.75 -- -- -- -- -- +15.0 -15.0 +5.0 +50 -41 +70 1.7 -- +15.5 -15.5 +5.25 +65 -50 +85 1.9 0.01 Volts Volts Volts mA mA mA Watts %FSR/%V +2.4 -- -- -- -- -- -- -- -- -- -- +0.4 -4 +4 35 +2.4 -- -- -- -- -- -- -- -- -- Straight Binary -- +0.4 -4 +4 35 +2.4 -- -- -- -- -- -- -- -- -- -- +0.4 -4 +4 35 Volts Volts mA mA ns MIN. +9.95 -- -- TYP. +10.0 5 -- MAX. +10.05 -- 1.5 MIN. +9.95 -- -- 0 to +70C TYP. +10.0 5 -- MAX. +10.05 -- 1.5 MIN. +9.95 -- -- -55 to +125C TYP. +10.0 5 -- MAX. +10.05 -- 1.5 UNITS Volts ppm/C mA
Footnotes:
All power supplies must be on before applying a start convert pulse. All supplies and the clock (START CONVERT) must be present during warmup periods. The device must be continuously converting during this time. There is a slight degradation in performance when using 12V supplies. See Ordering Information for availability of 5V input range. Contact DATEL for availability of other input voltage ranges. A 1MHz clock with a 200ns wide start convert pulse is used for all production testing. See Timing Diagram for more details. Effective bits is equal to:
(SNR + Distortion) - 1.76 + 20 log 6.02 Full Scale Amplitude Actual Input Amplitude
This is the time required before the A/D output data is valid after the analog input is back within the specified range.
TECHNICAL NOTES
1. Obtaining fully specified performance from the ADS-917 requires careful attention to pc-card layout and power supply decoupling. The device's analog and digital ground systems are connected to each other internally. For optimal performance, tie all ground pins (14, 19 and 23) directly to a large analog ground plane beneath the package. Bypass all power supplies, as well as the REFERENCE OUTPUT (pin 21), to ground with 4.7F tantalum capacitors in parallel with 0.1F ceramic capacitors. Locate the bypass capacitors as close to the unit as possible. If the user-installed offset and gain adjusting circuit shown in Figure 2 is used, also locate it as close to the ADS-917 as possible. 2. The ADS-917 achieves its specified accuracies without the 3
need for external calibration. If required, the device's small initial offset and gain errors can be reduced to zero using the input circuit of Figure 2. When using this circuit, or any similar offset and gain-calibration hardware, make adjustments following warmup. To avoid interaction, always adjust offset before gain. 3. When operating the ADS-917 from 12V supplies, do not drive external circuitry with the REFERENCE OUTPUT. The reference's accuracy and drift specifications may not be met, and loading the circuit may cause accuracy errors within the converter. 4. Applying a start convert pulse while a conversion is in progress (EOC = logic "1") initiates a new and inaccurate conversion cycle. Data from the interrupted and subsequent conversions will be invalid.
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ADS-917
CALIBRATION PROCEDURE
(Refer to Figures 2 and 3) Any offset and/or gain calibration procedures should not be implemented until devices are fully warmed up. To avoid interaction, offset must be adjusted before gain. The ranges of adjustment for the circuit of Figure 2 are guaranteed to compensate for the ADS-917's initial accuracy errors and may not be able to compensate for additional system errors. All fixed resistors in Figure 2 should be metal-film types, and multiturn potentiometers should have TCR's of 100ppm/C or less to minimize drift with temperature. A/D converters are calibrated by positioning their digital outputs exactly on the transition point between two adjacent digital output codes. This can be accomplished by connecting LED's to the digital outputs and adjusting until certain LED's "flicker" equally between on and off. Other approaches employ digital comparators or microcontrollers to detect when the outputs change from one code to the next. For the ADS-919, offset adjusting is normally accomplished at the point where the output bits are 0's and the LSB just changes from a 0 to a 1. This digital output transition ideally occurs when the applied analog input is +1/2 LSB (+305V). Gain adjusting is accomplished when all bits are 1's and the LSB just changes from a 1 to a 0. This transition ideally occurs when the analog input is at +full scale minus 11/2 LSB's (+9.999085V) .
+15V ZERO/ OFFSET ADJUST 20k 200k 2k
Zero/Offset Adjust Procedure 1. Apply a train of pulses to the START CONVERT input (pin 16) so the converter is continuously converting. If using LED's on the outputs, a 200kHz conversion rate will reduce flicker. 2. Apply +305V to the ANALOG INPUT (pin 20). 3. Adjust the offset potentiometer until the output bits are all 0's and the LSB flickers between 0 and 1. Gain Adjust Procedure 1. Apply +9.999085V to the ANALOG INPUT (pin 20). 2. Adjust the gain potentiometer until the output bits are all 1's and the LSB flickers between 1 and 0.
Table 1. Zero and Gain Adjust
INPUT VOLTAGE RANGE 0 to +10V
ZERO ADJUST +1/2 LSB +305V
GAIN ADJUST +FS -11/2 LSB +9.999085V
Table 2. Output Coding
INPUT VOLTAGE (0 to +10V) +9.999390 +7.500000 +5.000000 +2.500000 +0.000610 0.000000
UNIPOLAR SCALE +FS - 1LSB +3/4 FS +1/2 FS +1/4 FS +1LSB 0
DIGITAL OUTPUT MSB LSB 11 11 10 01 00 00 1111 0000 0000 0000 0000 0000 1111 1111 0000 0000 0000 0000 0000 0000 0000 0001 0000 0000
-15V
GAIN ADJUST +15V 1.98k 50 To Pin 20 of ADS-917
SIGNAL INPUT
Coding is straight binary; 1LSB = 610V.
-15V
Figure 2. ADS-917 Calibration Circuit
18 BIT 1 (MSB) +5V 4.7F + 0.1F 14 DIGITAL GROUND 13 17 BIT 2 12 BIT 3 11 BIT 4 10 BIT 5 9 BIT 6 8 BIT 7 7 BIT 8 6 BIT 9 5 BIT 10 4 BIT 11 3 BIT 12 2 BIT 13 1 BIT 14 (LSB) 15 EOC START 16 CONVERT
-12V/-15V 4.7F + 4.7F + +12V/+15V 0 to +10V 0.1F
24
ADS-917
ANALOG GROUND
19, 23 0.1F 22
ANALOG 20 INPUT 21 +10V REF. OUT
0.1F
+ 4.7F
Figure 3. Typical ADS-917 Connection Diagram
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THERMAL REQUIREMENTS
All DATEL sampling A/D converters are fully characterized and specified over operating temperature (case) ranges of 0 to +70C and -55 to + 125C. All room-temperature (TA = +25C) production testing is performed without the use of heat sinks or forced-air cooling. Thermal impedance figures for each device are listed in their respective specification tables. These devices do not normally require heat sinks, however, standard precautionary design and layout procedures should be used to ensure devices do not overheat. The ground and power planes beneath the package, as well as all pcb signal runs to and from the device, should be as heavy as possible to help conduct heat away from the package. Electrically-insulating, thermally-conductive "pads" may be installed underneath the package. Devices should be soldered to boards rather than "socketed", and of course, minimal air flow over the surface can greatly help reduce the package temperature. In more severe ambient conditions, the package/junction temperature of a given device can be reduced dramatically (typically 35%) by using one of DATEL's HS Series heat sinks. See Ordering Information for the assigned part number. See page 1-183 of the DATEL Data Acquisition Components Catalog for more information on the HS Series. Request DATEL Application Note AN-8, "Heat Sinks for DIP Data Converters", or contact DATEL directly, for additional information.
N START CONVERT 200ns typ. 10ns typ. Hold 430ns typ. Acquisition Time 570ns 40ns
N+1
INTERNAL S/H
70ns 10ns 90ns typ. EOC Conversion Time 420ns 20ns 35ns max. 74ns max. OUTPUT DATA Data (N - 1) Valid 926ns min. Notes: 1. fs = 500kHz. 2. The ADS-917 is an edge-triggered device. All internal operations are triggered by the rising edge of the start convert pulse, which may be as narrow as 20nsec. All production testing is performed at a 1MHz sampling rate with 200nsec wide start pulses. For lower sampling rates, wider start pulses may be used, however, a minimum pulse width low of 20nsec must be maintained. Figure 4. ADS-917 Timing Diagram Invalid Data Data N Valid 926ns min. Invalid Data
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+15V R3 200K 5% 12 13 +5V U2 74LS240 20 1Y1 33 31 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4 1G 10 +5V U3 74LS240 2 4 6 8 11 13 15 17 19 1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4 2G P2 1 3 5 B7 7 B6 9 B5 24 22 20 12 B4 26 14 B3 16 30 28 MSB 29 27 25 23 21 19 B2 SG3 18 32 B1 SG2 2 1A1 1A2 1A3 1A4 2A1 2A2 2A3 2A4 2G 4 6 6 AD845 4 13 11 +5V 8 C16 0.1MF +15V 74LS86 U4 11 R5 2K .1%
C2 15pF COG
ADS-917
OFFSET ADJ
R2
20K
C1 0.1MF
-15V C4 2.2MF
P4 50 2 U5 + 3 7 0.1% R6 2K 0.1% R4 1.98K
+
C3 0.1MF
ANALOG INPUT GAIN ADJ
R1
+
J5 C21 0.1MF 15 17 19 13 14 3 15 16 17 18 19 C9 2.2MF 20 21 22 C12 0.1MF 23 24 -15V +15V +5V C15 0.1MF P3 J1 1 J2 2 C24 7 NOTES: Y1 1 SEE NOTE 1 XTAL 7 8 +5V C18 0.1MF 14 + 2.2MF 74LS86 U4 3 14 74LS86 4 5 U4 6 C13 0.1MF C14 2.2MF + 0.1% C17 0.1MF 20 1Y1 1Y2 1Y3 1Y4 2Y1 2Y2 2Y3 2Y4 1G 10 18 16 14 12 9 7 5 3 1 B8 B9 B10 B11 B12 B13 B14 R7 10K 0.1% 7 6 OP-77 4 +5V C23 0.1MF C22 2.2 -15V MF U6 2 R8 10K -15V C6 2.2MF
+
+15V
C5 0.1MF
C7 0.1MF
C8 2.2MF
C19 2.2MF
+
C20 0.1MF
P1
18 16 14 12 10 8 6
17 15 13 11
8 -15V
7
C10 0.1MF
10
9
+
+
+
6
+
+15V C11 2.2MF 9 10 1. SG1 SHOULD BE OPEN. SG2 & SG3 SHOULD BE CLOSED. 2. FOR ADS-916 Y1 IS 500 KHZ. FOR ADS-917 Y1 IS 1 MHZ. FOR ADS-919/929 Y1 IS 2 MHZ.
2 4
1 3
6
5
9 7 LSB 5 4 EOC 3 2
ST.CONV. 1
12 11
14 13
ADS-916/917/919/929 12 +5V B3 11 DGND B4 10 EOC B5 9 ST. CONV B6 8 B2 B7 7 U1 B1 B8 6 AGND B9 5 INPUT B10 4 +10VREF B11 3 +15V B12 2 AGND B13 1 -15V B14
16 15
18 17
20 19
34 ENABLE
22 21
24 23
J3 8 U4 74LS86 J4
25
26
START CONVERT
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SG1
Figure 5. ADS-917 Evaluation Board Schematic
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ADS-917
0 -10 Amplitude Relative to Full Scale (dB) -20 -30 -40 -50 -60 -70 -80 -90 -100 -110 -120 -130 -140 0 50 100 150 200 250 300 350 400 450 500
Frequency (kHz) (fs = 1MHz, fin = 480kHz, Vin = -0.5dB, 16,384-point FFT)
Figure 6. ADS-917 FFT Analysis
+0.41
DNL (LSB's)
0
Number of Occurrences
-0.33 0
Digital Output Code
16,384
0
Digital Output Code
16,384
Figure 7. ADS-917 Histogram and Differential Nonlinearity
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MECHANICAL DIMENSIONS INCHES (mm)
1.31 MAX. (33.27) Dimension Tolerances (unless otherwise indicated): 2 place decimal (.XX) 0.010 (0.254) 3 place decimal (.XXX) 0.005 (0.127) 0.80 MAX. (20.32) 1 12 Lead Material: Kovar alloy Lead Finish: 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating
24-Pin DDIP Versions
24
13
ADS-917MC ADS-917MM ADS-927MC ADS-927MM ADS-927/883
0.235 MAX. (5.969)
0.100 TYP. (2.540) 1.100 (27.940) PIN 1 INDEX
0.200 MAX. (5.080)
0.010 (0.254) 0.190 MAX. (4.826) 0.018 0.002 (0.457) 0.100 (2.540) 0.040 (1.016)
+0.002 -0.001
SEATING PLANE 0.025 (0.635)
0.600 0.010 (15.240)
0.100 (2.540)
24-Pin Surface Mount Versions
24
1.31 MAX. (33.02)
13
ADS-917GC ADS-917GM ADS-927GC ADS-927GM
1 12
Dimension Tolerances (unless otherwise indicated): 2 place decimal (.XX) 0.010 (0.254) 3 place decimal (.XXX) 0.005 (0.127) 0.80 MAX. (20.32) Lead Material: Kovar alloy Lead Finish: 50 microinches (minimum) gold plating over 100 microinches (nominal) nickel plating
0.190 MAX. (4.826)
0.020 TYP. (0.508) PIN 1 INDEX
0.060 TYP. (1.524) 0.130 TYP. (3.302)
0.015 (0.381) MAX. radius for any pin
0.100 (2.540) 0.100 TYP. (2.540) 0.040 (1.016)
0.020 (0.508)
0.010 TYP. (0.254)
ORDERING INFORMATION
MODEL NUMBER ADS-917MC ADS-917MM ADS-917GC ADS-917GM ADS-927MC ADS-927MM ADS-927GC ADS-927GM ADS-927/883 OPERATING TEMP. RANGE 0 to +70C -55 to +125C 0 to +70C -55 to +125C 0 to +70C -55 to +125C 0 to +70C -55 to +125C -55 to +125C ANALOG INPUT Unipolar (0 to +10V) Unipolar (0 to +10V) Unipolar (0 to +10V) Unipolar (0 to +10V) Bipolar (5V)* Bipolar (5V)* Bipolar (5V)* Bipolar (5V)* Bipolar (5V)* ACCESSORIES ADS-B916/917 HS-24
Evaluation Board (without ADS-917) Heat Sinks for all ADS-917/927 DDIP models
Receptacles for PC board mounting can be ordered through AMP Inc. Part #3-331272-8 (Component Lead Socket), 24 required. For MIL-STD-883 product specifications, contact DATEL. * For information, see ADS-927 data sheet.
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ISO 9001
R E G I S T E R E D
DS-0293B
11/96
DATEL, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 Internet: www.datel.com E-mail:sales@datel.com Data Sheet Fax Back: (508) 261-2857
DATEL (UK) LTD. Tadley, England Tel: (01256)-880444 DATEL S.A.R.L. Montigny Le Bretonneux, France Tel: 1-34-60-01-01 DATEL GmbH Munchen, Germany Tel: 89-544334-0 DATEL KK Tokyo, Japan Tel: 3-3779-1031, Osaka Tel: 6-354-2025
DATEL makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. The DATEL logo is a registered DATEL, Inc. trademark.

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