Analog Devices ADD8706 Datasheet
16 V 5 + 1-Channel
FEATURES
Single-supply operation: 4.5 V to 16.5 V
Upper/lower buffers swing to V
Continuous output current: 35 mA
peak output current: 250 mA
V
COM
Offset voltage: 15 mV
Slew rate: 6 V/µs
Unity gain stable with large capacitive loads
Supply current: 750 µA per amplifier
APPLICATIONS
TFT LCD monitor panels
TFT LCD notebook panels
Communications equipment
Portable instrumentation
Electronic games
ADC/DAC buffer
GENERAL DESCRIPTION
The ADD8706 is a single-supply, 5-channel buffer with a
separate V
cost TFT LCD notebook and monitor panels. The top and
bottom channels swing to the top/bottom rails, respectively, and
can be used as end-point gamma references. The middle
channels are ideal for midpoint gamma references. The V
amplifier provides very high continuous and peak currents. All
channels have excellent transient response as well as high slew
rate and capacitive load drive capability. The ADD8706 is
specified over the –40°C to +85°C temperature range. The
ADD8706 is available in a 16-lead TSSOP package.
Table 1. Input Output Characteristics
Channel V
A V
B VS – 1.7 V GND 15 150
C VS – 1.7 V GND 15 150
D VS – 1.7 V GND 15 150
E VS – 1.7 V GND 15 150
F VS – 1.7 V GND 35 250
amplifier that has been optimized for today’s low
COM
IH
S
/GND
S
V
IL
IO (mA) ISC (mA)
GND + 1.7 V 15 150
COM
Operational Amplifier
ADD8706
PIN CONFIGURATION
1
+IN A
2
+IN B
3
+IN C
4
+IN D OUT D
ADD8706
5
+IN E
6
V+
7
+IN F
89
–IN F OUT F
NC = NO CONNECT
Figure 1. 16-Lead TSSOP
16
15
14
13
12
11
10
OUT A
OUT B
OUT C
OUT E
V–
NC
04352-0-001
Rev. 0
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Specifications subject to change without notice. No license is granted by implication
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Tel: 781.329.4700
Fax: 781.326.8703 © 2003 Analog Devices, Inc. All rights reserved.
www.analog.com
ADD8706
TABLE OF CONTENTS
Electrical Characteristics ................................................................. 3
Absolute Maximum Ratings............................................................ 5
ESD Caution.................................................................................. 5
Typical Performance Characteristics ............................................. 6
Application Information.................................................................. 9
REVISION HISTORY
Revision 0: Initial Version
Theory.............................................................................................9
Input/Output Characteristics ......................................................9
Important Note..............................................................................9
Outline Dimensions....................................................................... 11
Ordering Guide .......................................................................... 11
Rev. 0 | Page 2 of 12
ADD8706
ELECTRICAL CHARACTERISTICS
Table 2. VS = 16 V, VCM = VS/2, TA @ 25 °C, unless otherwise noted
Parameter Symbol Condition Min Typ Max Unit
SUPPLY CHARACTERISTICS
Supply Voltage V
S
Power Supply Rejection Ratio PSRR VS = 4 V to 17 V, –40°C ≤ TA ≤ +85°C 70 90 dB
Total Supply Current I
SY
–40°C ≤ TA ≤ +85°C 6 mA
INPUT CHARACTERISTICS
Offset Voltage V
OS
Offset Voltage Drift ∆VOS/∆T –40°C ≤ TA ≤ +85°C 10 µV/°C
Input Bias Current I
B
–40°C ≤ TA ≤ +85°C 1500 nA
Input Offset Current I
OS
Amplifier F –40°C ≤ TA ≤ +85°C 250 nA
Common-Mode Rejection Ratio CMRR –40°C ≤ TA ≤ +85°C
Amplifier F VCM = 0 to (VS – 1.7 V) 54 95 dB
Input Impedance Z
Input Capacitance C
IN
IN
OUTPUT CHARACTERISTICS
Output Voltage High (A) V
OH
Optimized for High Swing VIN = 16 V, IL = 5 mA 15.75 15.85 V
–40°C ≤ TA ≤ +85°C 15.65 V
Output Voltage High (B to D) V
OH
Optimized for Midrange VIN = 14 V, IL = 5 mA 13.90 13.985 V
–40°C ≤ TA ≤ +85°C 13.85 V
Output Voltage High (E) V
OH
Optimized for Low Swing VIN = 14 V, IL = 5 mA 13.9 13.99 V
–40°C ≤ TA ≤ +85°C 13.85 V
Output Voltage High (F) V
Optimized for V
COM
OH
V
–40°C ≤ TA ≤ +85°C 15.75 V
Output Voltage Low (A) V
OL
Optimized for High Swing VIN = 1.7 V, IL = 5 mA 1.71 1.730 V
–40°C ≤ TA ≤ +85°C 1.725 V
Output Voltage Low (B–D) V
OL
Optimized for Midrange VIN = 0 V, IL = 5 mA 200 300 mV
–40°C ≤ TA ≤ +85°C 350 mV
Output Voltage Low (E) V
OL
Optimized for Low Swing VIN = 0 V, IL = 5 mA 80 200 mV
Output Voltage Low (F) V
Optimized for V
COM
OL
V
–40°C ≤ TA ≤ +85°C 250 mV
Continuous Output Current (A to E) I
Continuous Output Current (F) I
Peak Output Current (A to E) I
Peak Output Current (F) I
OUT
OUT
PK
PK
4.5 16 V
VO = VS/2, No Load 4.5 5.4 mA
2 15 mV
400 1100 nA
10 100 nA
400 kΩ
1 pF
VIN = 16 V, IL = 100 µA 15.99 V
VIN = 14 V, IL = 100 µA 14 V
VIN = 14 V, IL = 100 µA 14 V
VIN = 16 V, IL = 100 µA 15.995 V
= 16 V, IL = 5 mA 15.8 15.9 V
IN
VIN = 1.7 V, IL = 100 µA 1.70 V
VIN = 0 V, IL = 100 µA 5 mV
VIN = 0 V, IL = 100 µA 5 mV
–40°C ≤ TA ≤ +85°C 300 mV
VIN = 0 V, IL = 100 µA 5 mV
= 0 V, IL = 5 mA 50 150 mV
IN
VS = 16 V 15 mA
VS = 16 V 35 mA
VS = 16 V 50 mA
VS = 16 V 200 mA
Rev. 0 | Page 3 of 12
ADD8706
Parameter Symbol Condition Min Typ Max Unit
TRANSFER CHARACTERISTICS
Amplifier Gain A
Buffer Gain A
VO
VCL
–40°C ≤ TA ≤ +85°C 0.995 0.9980 1.005 V/V
Buffer Gain Linearity NL RL = 2kΩ, VO = 0.5 to (VS – 0.5 V) 0.01 %
DYNAMIC PERFORMANCE
Slew Rate SR RL = 2 kΩ, CL = 200 pF 4 6 V/µs
Bandwidth BW –3 dB, RL = 2 kΩ, CL = 40 pF 6 MHz
Phase Margin Øo RL = 2 kΩ, CL = 40 pF 55 Degrees
Channel Separation 75 dB
NOISE PERFORMANCE
Voltage Noise Density e
n
f = 10 kHz 25 nV/√Hz
Current Noise Density i
n
RL = 2 kΩ, VO = 0.5 to (VS – 2 V) 1 10 V/mV
RL = 2 kΩ 0.995 0.9985 1.005 V/V
f = 1 kHz 26 nV/√Hz
f = 10 kHz 0.8 pA/√Hz
Rev. 0 | Page 4 of 12
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