Document
16 V Quad Operational Amplifier ADD8704
FEATURES
Single-supply operation: 4.5 V to 16.5 V Upper/lower buffers swing to VDD/GND Continuous output current: 35 mA VCOM peak output current: 250 mA Offset voltage: 15 mV Slew rate: 6 V/µs Unity gain stable with large capacitive loads Supply current: 700 µA per amplifier Drop-in replacement for EL5420
PIN CONFIGURATIONS
OUT A 1
– + + –
14
OUT D –IN D +IN D V– +IN C –IN C OUT C
00001-0-0-1
00001-0-002
–IN A 2 +IN A 3 V+ 4 +IN B 5 –IN B 6
– + + –
13
12
ADD8704
11
10
9
APPLICATIONS
TFT LCD monitor panels TFT LCD notebook panels Communications equipment Portable instrumentation Electronic games
OUT B 7
8
Figure 1. 14-Lead TSSOP (RU Suffix)
15 OUT A
14 OUT D
16 NC
GENERAL DESCRIPTION
The ADD8704 is a single-supply quad operational amplifier that has been optimized for today’s low cost TFT LCD notebook and monitor panels. Output channels A and D swing to the rail for use as end-point gamma references. Output channels B and C provide high continuous and peak current drive for use as VCOM or repair amplifiers; they can also be used as midpoint gamma references. All four amplifiers have excellent transient response and have high slew rate and capacitive load drive capability. The ADD8704 is specified over the –40°C to +85°C temperature range and is available in either a 14-lead TSSOP or a 16-lead LFCSP package for thin, portable applications. Table 1. Input/Output Characteristics
Channel A B C D VIH VDD – 1.7 V VDD – 1.7 V VDD VDD VIL GND GND GND GND + 1.7 V IO (mA) 15 35 35 15 ISC (mA) 150 250 250 150
13 NC
–IN A 1 +IN A 2 V+ 3 +IN B 4 –IN A 5 OUT B 6 OUT C 7 –IN C 8
12 –IN
D D
ADD8704
TOP VIEW
11 +IN 10 V– 9
+IN C
Figure 2. 16-Lead CSP (CP Suffix)
Rev. 0
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: 781.326.8703 © 2003 Analog Devices, Inc. All rights reserved.
ADD8704 TABLE OF CONTENTS
Electrical Characteristics ................................................................. 3 Absolute Maximum Ratings............................................................ 5 Typical Performance Characteristics ............................................. 6 Application Information................................................................ 12 Theory.......................................................................................... 12 Input............................................................................................. 12 Output.......................................................................................... 12 Important Note........................................................................... 12 Outline Dimensions ....................................................................... 14 Ordering Guide .......................................................................... 14
REVISION HISTORY
Revision 0: Initial Version
Rev. 0 | Page 2 of 16
ADD8704 ELECTRICAL CHARACTERISTICS
Table 2. VS = 16 V, VCM = VS/2, TA @ 25°C, unless otherwise noted
Parameter INPUT CHARACTERISTICS Offset Voltage Offset Voltage Drift Input Bias Current Input Offset Current Common-Mode Rejection Ratio Amp A Amp B Amp C Amp D Large Signal Voltage Gain Input Impedance Input Capacitance OUTPUT CHARACTERISTIS Output Voltage High (A) Optimized for Low Swing Output Voltage High (B) Optimized for VCOM Output Voltage High (C) Optimized for Midrange Output Voltage High (D) Optimized for High Swing Output Voltage Low (A) Optimized for Low Swing Output Voltage Low (B) Optimized for VCOM Output Voltage Low (C) Optimized for Midrange Output Voltage Low (D) Optimized for High Swing Continuous Output Current (A and D) Continuous Output Current (B and C) Peak Output Current (A and D) Peak Output Current (B and C) SUPPLY CHARACTERISTICS Supply Voltage Power Supply Rejection Ratio Total Supply Current Symbol VOS ∆VOS/∆T IB IOS CMRR –40°C ≤ TA ≤ +85°C –40°C ≤ TA ≤ +85°C VCM = 0 to (VS – 1.7 V) VCM = 0 to (VS – 1.7 V) VCM = 0 to VS VCM = 1.7 V to VS RL = 10 kΩ, VO = 0.5 to (VS – 0.5 V) Condition Min Typ 2 10 200 10 Max 15 1100 1500 100 250 Unit mV µV/°C nA nA nA nA dB dB dB dB V/mV kΩ pF V V V V V V V V V V V V mV mV mV mV mV mV mV mV mV mV mV mV mA mA mA mA V dB mA mA
–40°C ≤ TA ≤ +85°C –40°C ≤ TA ≤ +85°C
AVO ZIN CIN VOH
54 54 54 54 1
95 95 95 95 10 400 1 15.985 15.75 15.995 15.9 15.995 15.9 15.99 15.85 20 80 5 50 5 50 50 375 15 35 50 200
VOH
VOH
VOH
VOL
VOL
VOL
VOL
IL = 100 µA IL = 5 mA –40°C ≤ TA ≤ +85°C IL = .