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Global Mixed-mode Technology Inc.
G1211
Rail-to-Rail I/O, 100mA Output Op Amp
Features
Single-Supply Operation: 4V to 6V High Output Current: 100mA Low Supply Current: 500 A Wide Bandwidth: 3 MHz Slew Rate: 4 V/s No Phase Reversal Unity Gain Stable Ultra-Small, 5-Pin SC70 Package
General Description
The G1211 is a rail-to-rail input and output single-supply amplifiers featuring 100mA output drive current. This high output current makes these amplifiers excellent for driving either resistive or capacitive loads. AC performance is very good with 3.0MHz bandwidth; 4.0V/s slew rate and low distortion. All are guaranteed to operate from a +4 to +6 volt single supply. The very low input bias currents enable the G1211 to be used for integrators and diode amplification and other applications requiring low input bias current. The 100mA high output current and supply current is only 850A per amplifier at 5 volts, allowing low current applications to control high current loads. Applications include audio amplification for computers, sound ports, sound cards and set-top boxes. The G1211 is very stable and capable of driving heavy capacitive loads. The ability to swing rail-to-rail at the inputs and outputs enables designers to buffer CMOS ADC/DACs, ASICs or other wide output swing devices in single-supply systems.
Applications
Battery-Powered Instruments Portable Equipment Audio Signal Conditioning High-Side/Low-Side Current Sensors Multimedia Audio ASIC Input or Output Amplifier Headphone Driver
Ordering Information
PART
G1211
TEMP. RANGE
0C to 70C
PIN-PACKAGE
SC70-5L
Pin Configuration
Tpypical Application Circuit
G1211
IN+ 1 + + 5 VDD
IN 1 3
VDD
5
VSS
2
+ G1211
4
OUT
-
2
RL 2K
IN-
3 SC70-5L
4
OUT
Ver 1.3 Oct 23, 2001
TEL: 886-3-5788833 http://www.gmt.com.tw
1
Global Mixed-mode Technology Inc.
Absolute Maximum Ratings (Note1)
SYMBOL
VDD Tstg Tamb
G1211
MIN.
0 -65 0
PARAMETER
Supply voltage Storage temperature Operating ambient temperature
CONDITIONS
MAX.
7.0 +150 +70
UNIT
V C C
Notes: 1. Absolute Maximum Ratings are limits beyond which damage to the device may occur.
Thermal Characteristics
SYMBOL
Rth j-a
PARAMETER
Thermal resistance from junction to ambient in free air SC70-5L
VALUE
400
UNIT
C/W
Electrical Characteristics
VDD = 5V; VSS = 0V ; Tamb = 25C; fi = 1kHz; RL = 2K; unless otherwise specified. SYMBOL
Supplies Supply voltage VDD VSS IDD Ptot Single Dual Negative supply voltage (dual) Supply current Total power dissipation 4.0 4.0 2 -2.0 5.0 5.0 2.5 -2.5 0.85 4.25 1.5 0 0.05 0.05 1000 80 100 5.5 60 56 Note 2 RL = 2k, Note 2 Open-loop; No Load Measured from 30% to 70% of 5Vp-p step Note 1; RL = 32 Unity gain; RL = 32 6.0 6.0 3.0 -3.0 1.2 6.0 10 5.0 V V V V mA mW mV V nA nA M dB mA V V dB dB
PARAMETER
CONDITIONS
MIN.
TYP.
MAX.
UNIT
no load no load
DC Characteristics VI (OS) Input offset voltage VCM IB IOS RIN AV IO RO VO PSRR CMRR Common mode voltage Input Bias Current Input Bias Current Offset Input Resistance Large-Signal Voltage Gain Maximum output current Output resistance Output voltage swing Power supply rejection ratio Common-Mode Rejection Ratio
THD<0.1%, RL= 16 Open-loop, RL= 20 RL = 32 RL = 2k fi = 1kHz; Vripple(peak) = 1V
1.0 0.1
4.0 4.9 -
AC Characteristics THD GBWP SR PM PO B Total harmonic distortion Gain-Bandwidth Product Slew-Rate Phase Margin Maximum output power Power bandwidth < 0.1 3.0 4 60 135 25 % MHz V/s deg mW KHz
Notes: 1. Values are proportional to VDD; THD < 0.1% 2. VDD = 5.0V; VO (P-P) = 4.0V (at 0 dB)
Ver 1.3 Oct 23, 2001
TEL: 886-3-5788833 http://www.gmt.com.tw
2
Global Mixed-mode Technology Inc.
Output Swing Range Voltage Figure
Test ConditionTA = 25C, AV = -1
G1211
V+ = 2.5V , V- = - 2.5V , RL=2k
V+ = 2.5V , V- = - 2.5V , RL=250
V+ = 2.5V , V- = - 2.5V , RL=32
V+ = 2.5V , V- = - 2.5V , RL=16
Ver 1.3 Oct 23, 2001
TEL: 886-3-5788833 http://www.gmt.com.tw
3
Global Mixed-mode Technology Inc.
Input Common Mode Voltage Range Figure
Test ConditionTA = 25C, AV = 1
G1211
V+ = 5V, V- = 0V, RL = 2K
V+ = 5V, V- = 0V, RL = 250
Ver 1.3 Oct 23, 2001
TEL: 886-3-5788833 http://www.gmt.com.tw
4
Global Mixed-mode Technology Inc.
Large Signal Transient Response Figure
Test ConditionTA=25C, AV=1 , RL = 2k V+ = 2.5V, V- = -2.5V
G1211
Small Signal Transient Response Figure
Test ConditionTA=25C, AV=1 , RL = 32 V+ = 2.5V, V- = -2.5V
Test Condition: Vs = 2.5V, TA = 25C
Open-Loop Gain & Phase vs. Frequency 100.0 80.0 -50
Power Supply Rejection - dB
Test Condition: Vs = 2.5V, TA = 25C
PSRR 70.0 60.0 50.0 40.0 30.0 20.0 10.0 0.0 0.1 1 10 Frequency - kHZ 100 1000 PSRR + PSRR -
Gain - dB
60.0 40.0 20.0 0.0 0.1 1 10 100
-90 -110 -130 -150 1000 10000
Frequency - kHZ
Phase - degree
-70
Ver 1.3 Oct 23, 2001
TEL: 886-3-5788833 http://www.gmt.com.tw
5
Global Mixed-mode Technology Inc.
Package Information
e1 b
L
G1211
E1
E
e
D
e
C
A2
A
A1
Note: 1. All dimensions are in millimeters 2. Dimensions are inclusive of plating of plating 3. Dimensions are exclusive of mold flash & metal burr 4. All specifications comply to EIAJ SC70 5. Coplanarity 4 Mils. Max. SYMBOL
A A1 A2 b C D E E1 e e1 L
MIN.
0.90 0.05 0.85 0.20 0.10 1.90 1.15 2.00
DIMENSION IN MM MAX.
1.20 0.15 1.05 0.40 0.15 2.10 1.35 2.20 0.65 BSC 1.30 BSC 0.425 REF
MIN.
0.035 0.002 0.033 0.008 0.004 0.075 0.045 0.0787
DIMENSION IN INCH MAX.
0.047 0.006 0.041 0.016 0.006 0.083 0.053 0.0866 0.0256 BSC 0.0512 BSC 0.0167 REF
Package Orientation
Feed Direction SC70-5L Package Orientation
GMT Inc. does not assume any responsibility for use of any circuitry described, no circuit patent licenses are implied and GMT Inc. reserves the right at any time without notice to change said circuitry and specifications.
Ver 1.3 Oct 23, 2001
TEL: 886-3-5788833 http://www.gmt.com.tw
6

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