4-, 5-, 6-channel, muxed input line inversion lcd gamma buffers add8504/ADD8505/add8506 rev. b information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781.329.4700 www.analog.com fax: 781.461.3113 ?2006 analog devices, inc. all rights reserved. features single-supply operation: 3.3 v to 6.5 v rail-to-rail input, rail-to-rail output high output current: 380 ma low supply current: 3.9 ma stable with 1 nf loads wide temperature range: ?40c to +105c 16-, 20-, and 24-lead, pb-free, tssop packages applications lcd line inversion gamma references car navigation panels personal media player panels general description the add8504, ADD8505, and add8506 are 4-, 5-, and 6-channel lcd gamma reference buffers designed to drive column driver gamma inputs in line inversion panels. each buffer channel has an a/b input to select between two gamma voltage curves. these buffer channels drive the resistor ladders of lcd column drivers for gamma correction. the add8504/ ADD8505/add8506 outputs have high slew rates and output drives that increase the stability of the reference ladder resulting in optimal gray scale and visual performance. the add8504/ADD8505/add8506 are specified over the ?40c to +105c temperature range. they are available, respec- tively, in 16-, 20-, and 24-lead thin shrink small outline (tssop), surface-mount, pb-free packages. pin configuration diagrams ina1 1 out1 16 inb1 2 out2 15 ina2 3 vcc1 14 inb2 4 a/b 13 ina3 5 gnd 12 inb3 6 gnd 11 ina4 7 out3 10 inb4 8 out4 9 05549-001 figure 1. add8504: 4-channel buffer ina1 1 vcc1 20 inb1 2 out1 19 ina2 3 out2 18 inb2 4 out3 17 ina3 5 vcc2 16 inb3 6 a/b 15 ina4 7 gnd 14 inb4 8 gnd 13 ina5 9 out4 12 inb5 10 out5 11 05549-002 figure 2. ADD8505: 5-channel buffer ina1 1 vcc1 24 inb1 2 out1 23 ina2 3 out2 22 inb2 4 out3 21 ina3 5 vcc2 20 inb3 6 a/b 19 ina4 7 gnd 18 inb4 8 gnd 17 ina5 9 out4 16 inb5 10 out5 15 ina6 11 out6 14 inb6 12 vcc3 13 05549-003 figure 3. add8506: 6-channel buffer
add8504/ADD8505/add8506 rev. b | page 2 of 8 table of contents features .............................................................................................. 1 applications....................................................................................... 1 general description ......................................................................... 1 pin configuration diagrams........................................................... 1 revision history ............................................................................... 2 specifications..................................................................................... 3 electrical characteristics............................................................. 3 absolute maximum ratings............................................................ 4 thermal resistance .......................................................................4 esd performance ..........................................................................4 esd caution...................................................................................4 pin configurations and function descriptions ............................5 typical performance characteristics ..............................................6 applications........................................................................................7 outline dimensions ..........................................................................8 ordering guide .............................................................................8 revision history 1/06rev. a to rev. b added pin configurations and function descriptions section ........................................................................ 5 added table 5.................................................................................... 8 10/05rev. 0 to rev. a added add8504 and ADD8505......................................universal changes to specifications section.................................................. 3 updated outline dimensions ......................................................... 7 changes to ordering guide ............................................................ 7 9/05revision 0: initial version
add8504/ADD8505/add8506 rev. b | page 3 of 8 specifications electrical characteristics v cc = 5 v, t a = 25c, unless otherwise noted. v in denotes buffer input voltage; i load denotes load current; r l denotes load resistance; c l denotes load capacitance. table 1. parameter symbol conditions min typ max unit input characteristics offset voltage v os 0 v v in 5 v 20 mv input common-mode voltage range v cm 0 5 v input bias current i b v in = 2.5 v 2 50 na voltage gain a vo 0.985 v/v output characteristics output voltage high v oh i load = +20 ma 4.75 v output voltage low v ol i load = ?20 ma 0.2 v output resistance r out ?20 ma i load +20 ma; 0.5 v v in 4.5 v 0.20 output short-circuit current i sc 120 380 ma power supply supply current i sy v in = 2.5 v add8504 2.7 3.8 ma ADD8505 3.0 4.4 ma add8506 3.9 5.1 ma supply voltage range v cc 3.3 6.5 v dynamic performance slew rate sr c l = 15 pf 7.0 v/s r l = 250 6.2 v/s settling time t s c l = 200 pf, r l = 10 k 2.5 6 s logic input characteristics input current low i il v in = 0.0 v 100 na input current high i ih v in = 5.0 v 100 na input voltage low v il v cc = 5.0 v, ?40c t a 105c 0.8 v input voltage low v il v cc = 3.3 v, ?40c t a 105c 0.7 v input voltage high v ih v cc = 5.0 v, ?40c t a 105c 1.7 v input voltage high v ih v cc = 3.3 v, ?40c t a 105c 1.4 v
add8504/ADD8505/add8506 rev. b | page 4 of 8 absolute maximum ratings table 2. parameter rating supply voltage 7 v input voltage gnd to v cc storage temperature range ?65c to +150c junction temperature range ?65c to +150c lead temperature (soldering, 60 sec) 300c stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. this is a stress rating only; functional operation of the device at these or any other conditions above those indicated in the operational section of this specification is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. thermal resistance table 3. thermal package characteristics model package type ja 1 jc 2 unit add8504wruz 16-lead pb-free tssop 150 28 c/w ADD8505wruz 20-lead pb-free tssop 143 45 c/w add8506wruz 24-lead pb-free tssop 128 45 c/w 1 ja is specified for natural convection on a two-layer board. 2 jc is specified for natural convection on a two-layer board. esd performance table 4. model hbm 1 mm 2 ficdm 3 add8504wruz 4.0 kv 400 v 1.0 kv ADD8505wruz 3.5 kv 200 v 1.0 kv add8506wruz 3.5 kv 200 v 1.0 kv 1 human body model. 2 machine model. 3 field induced charge device model. esd caution esd (electrostatic discharge) sensitive device. electros tatic charges as high as 4000 v readily accumulate on the human body and test equipment and can discharge wi thout detection. although this product features proprietary esd protection circuitry, permanent dama ge may occur on devices subjected to high energy electrostatic discharges. therefore, proper esd pr ecautions are recommended to avoid performance degradation or loss of functionality.
add8504/ADD8505/add8506 rev. b | page 5 of 8 pin configurations and function descriptions ina1 1 vcc1 24 inb1 2 out1 23 ina2 3 out2 22 inb2 4 out3 21 ina3 5 vcc2 20 inb3 6 a/b 19 ina4 7 gnd 18 inb4 8 gnd 17 ina5 9 out4 16 inb5 10 out5 15 ina6 11 out6 14 inb6 12 vcc3 13 05549-003 figure 4. add8506 6-channel buffer ina1 1 vcc1 20 inb1 2 out1 19 ina2 3 out2 18 inb2 4 out3 17 ina3 5 vcc2 16 inb3 6 a/b 15 ina4 7 gnd 14 inb4 8 gnd 13 ina5 9 out4 12 inb5 10 out5 11 05549-002 figure 5. ADD8505 5-channel buffer ina1 1 out1 16 inb1 2 out2 15 ina2 3 vcc1 14 inb2 4 a/b 13 ina3 5 gnd 12 inb3 6 gnd 11 ina4 7 out3 10 inb4 8 out4 9 05549-001 figure 6. add8504 4-channel buffer table 5. pin function descriptions add506 pin o. add505 pin o. add504 pin o. mnemonic function description 1 1 1 ina1 input channel 1 buffer input a. 2 2 2 inb1 input channel 1 buffer input b. 3 3 3 ina2 input channel 2 buffer input a. 4 4 4 inb2 input channel 2 buffer input b. 5 5 5 ina3 input channel 3 buffer input a. 6 6 6 inb3 input channel 3 buffer input b. 7 7 7 ina4 input channel 4 buffer input a. 8 8 8 inb4 input channel 4 buffer input b. 9 9 n/a ina5 input channel 5 buffer input a. 10 10 n/a inb5 input channel 5 buffer input b. 11 n/a n/a ina6 input channel 6 buffer input a. 12 n/a n/a inb6 input channel 6 buffer input b. 13 n/a n/a vcc3 power in power supply input. short to vcc1 and vcc2. typically connected to +5 v. 14 n/a n/a out6 output channel 6 buffer output. 15 11 n/a out5 output channel 5 buffer output. 16 12 9 out4 output channel 4 buffer output. 17, 18 13, 14 11, 12 gnd ground ground. 19 15 13 a/b input switch control. logic high selects input a; logic low selects input b. 20 16 n/a vcc2 power in power supply input. short to vcc1 and vcc3. typically connected to +5 v. 21 17 10 out3 output channel 3 buffer output. 22 18 15 out2 output channel 2 buffer output. 23 19 16 out1 output channel 1 buffer output. 24 20 14 vcc1 power in power supply input. short to vcc2 and vcc3. typically connected to +5 v.
add8504/ADD8505/add8506 rev. b | page 6 of 8 typical performance characteristics 5.5 5.0 0 0 supply voltage (v) supply current (ma) 7 4.5 4.0 3.5 3.0 2.5 2.0 1.5 1.0 0.5 123456 v cm = 2.5v t a = 25 c 05549-004 figure 7. supply current vs. supply voltage 1000 1 0 load current (ma) output voltage to supply rail (mv) 100 100 10 11 0 vcc = 5v t a = 25 c 05549-005 output high output low figure 8. output voltage to supply rail vs. load current 6 ?8 ?40 temperature ( c) v os (mv) 4 2 0 ?2 ?4 ?6 0 2540809095100105 ch6 ch5 ch2 ch3 ch1 ch4 vcc = 5v v cm = 2.5v 05549-006 figure 9. offset voltage vs. temperature ch1 2.00v ch2 2.00v m400ns vcc = 5v t a = 25 c 5v 0v input output 5v 0v 05549-007 figure 10. transient responserising ch1 2.00v ch2 2.00v m400ns vcc = 5v t a = 25 c 5v 0v input output 5v 0v 05549-008 figure 11. transient responsefalling
add8504/ADD8505/add8506 rev. b | page 7 of 8 applications the add8504/ADD8505/add8506 have cmos buffers with a/b inputs to select between two different reference voltages set up by an external resistor ladder. input bias currents are orders of magnitude less than competitive parts. this allows the use of a very large resistor ladder to save supply current. the buffer outputs are designed to drive resistive or capacitive loads. therefore, to attain the best display performance, do not use resistors in series with these outputs. outputs have high slew rates and 6 s settling times. each output delivers a mini- mum of 120 ma, ensuring a fast response to varying loads. power supply pins on the ADD8505 and add8506 have multiple ground (gnd) and supply (vcc) connections. because of the high peak currents that these buffers deliver, it is recommended that all gnd and vcc pins be connected and suitably bypassed. table 6. mux function a/b select input logic high inax logic low inbx rb1 rb2 rb3 rb4 rb5 rb6 5v 5v rb7 ra1 ra2 ra3 ra4 ra5 ra6 ra7 0.1 f 0.1 f notes 1. rax resistors are used to set positive inversion gamma voltages. 2. rbx resistors are used to set negative inversion gamma voltages. 2 23 24 to column drivers vcom (inverting signal) 5v 0.1 f 05549-009 1 3 22 4 21 5 20 6 19 7 18 8 17 9 16 10 15 10 10 14 11 12 13 figure 12. typical application
add8504/ADD8505/add8506 rev. b | page 8 of 8 outline dimensions 16 9 8 1 pin 1 seating plane 8 0 4.50 4.40 4.30 6.40 bsc 5.10 5.00 4.90 0.65 bsc 0.15 0.05 1.20 max 0.20 0.09 0.75 0.60 0.45 0.30 0.19 coplanarity 0.10 compliant to jedec standards mo-153-ab figure 13. 16-lead thin shrink small outline package [tssop] (ru-16) dimensions shown in millimeters compliant to jedec standards mo-153-ac 20 1 11 10 6.40 bsc 4.50 4.40 4.30 pin 1 6.60 6.50 6.40 seating plane 0.15 0.05 0.30 0.19 0.65 bsc 1.20 max 0.20 0.09 0.75 0.60 0.45 8 0 coplanarit y 0.10 figure 14. 20-lead thin shrink small outline package [tssop] (ru-20) dimensions shown in millimeters 24 13 12 1 6.40 bsc 4.50 4.40 4.30 pin 1 7.90 7.80 7.70 0.15 0.05 0.30 0.19 0.65 bsc 1.20 max 0.20 0.09 0.75 0.60 0.45 8 0 seating plane 0.10 coplanarity compliant to jedec standards mo-153-ad figure 15. 24-lead thin shrink small outline package [tssop] (ru-24) dimensions shown in millimeters ordering guide model temperature range package description package option ordering quantity add8504wruz 1 ?40c to +105c 16-lead thin shrink small outline package [tssop], tube ru-16 96 add8504wruz-reel7 1 ?40c to +105c 16-lead thin shrink small o utline package [tssop], 7 reel ru-16 1,000 add8504wruz-reel 1 ?40c to +105c 16-lead thin shrink small outline package [tssop], 13 reel ru-16 2,500 ADD8505wruz 1 ?40c to +105c 20-lead thin shrink small outline package [tssop], tube ru-20 96 ADD8505wruz-reel7 1 ?40c to +105c 20-lead thin shrink small outline package [tssop], 7 reel ru-20 1,000 ADD8505wruz-reel 1 ?40c to +105c 20-lead thin shrink small outline package [tssop], 13 reel ru-20 2,500 add8506wruz 1 ?40c to +105c 24-lead thin shrink small outline package [tssop], tube ru-24 96 add8506wruz-reel7 1 ?40c to +105c 24-lead thin shrink small outline package [tssop], 7 reel ru-24 1,000 add8506wruz-reel 1 ?40c to +105c 24-lead thin shrink small outline package [tssop], 13 reel ru-24 2,500 1 z = pb-free part. ?2006 analog devices, inc. all rights reserved. trademarks and registered trademarks are the property of their respective owners. d05549-0-1/06(b)
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