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16 V Quad
Operational Amplifier
ADD8704
FEATURES
Single-supply operation: 4.5 V to 16.5 V
Upper/lower buffers swing to V
DD
/GND
Continuous output current: 35 mA
V
COM
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 V
COM
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
V
IH
V
DD
– 1.7 V
V
DD
– 1.7 V
V
DD
V
DD
V
IL
GND
GND
GND
GND + 1.7 V
I
O
(mA)
15
35
35
15
I
SC
(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. V
S
= 16 V, V
CM
= V
S
/2, T
A
@ 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 V
COM
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 V
COM
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
V
OS
∆V
OS
/∆T
I
B
I
OS
CMRR
–40°C ≤ T
A
≤ +85°C
–40°C ≤ T
A
≤ +85°C
V
CM
= 0 to (V
S
– 1.7 V)
V
CM
= 0 to (V
S
– 1.7 V)
V
CM
= 0 to V
S
V
CM
= 1.7 V to V
S
R
L
= 10 kΩ, V
O
= 0.5 to (V
S
– 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 ≤ T
A
≤ +85°C
–40°C ≤ T
A
≤ +85°C
AVO
Z
IN
C
IN
V
OH
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
V
OH
V
OH
V
OH
V
OL
V
OL
V
OL
V
OL
I
L
= 100 µA
I
L
= 5 mA
–40°C ≤ T
A
≤ +85°C
I
L
= 100 µA
I
L
= 5 mA
–40°C ≤ T
A
≤ +85°C
I
L
= 100 µA
I
L
= 5 mA
–40°C ≤ T
A
≤ +85°C
I
L
= 100 µA
I
L
= 5 mA
–40°C ≤ T
A
≤ +85°C
I
L
= 100 µA
I
L
= 5 mA
–40°C ≤ T
A
≤ +85°C
I
L
= 100 µA
I
L
= 5 mA
–40°C ≤ T
A
≤ +85°C
I
L
= 100 µA
I
L
= 5 mA
–40°C ≤ T
A
≤ +85°C
I
L
= 100 µA
I
L
= 5 mA
–40°C ≤ T
A
≤ +85°C
15.6
15.5
15.8
15.75
15.8
15.75
15.75
15.65
200
300
150
250
150
250
500
600
I
OUT
I
OUT
I
PK
I
PK
V
S
PSRR
I
SY
V
S
= 16 V
V
S
= 16 V
4.5
70
16
90
2.8
3.4
4
V
S
= 4 V to 17 V, –40°C ≤ T
A
≤ +85°C
V
O
= V
S
/2, No Load
–40°C ≤ T
A
≤ +85°C
Rev. 0 | Page 3 of 16
ADD8704
ELECTRICAL CHARACTERISTICS
(CONTINUED)
Parameter
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
–3 dB Bandwidth
Phase Margin
Channel Separation
NOISE PERFORMANCE
Voltage Noise Density (A, B, and C)
Voltage Noise Density (D)
Current Noise Density
Symbol
SR
GBP
BW
Øo
Condition
R
L
= 2 kΩ, C
L
= 200 pF
R
L
= 10 kΩ, C
L
= 40 pF
R
L
= 10 kΩ, C
L
= 40 pF
R
L
= 10 kΩ, C
L
= 40 pF
Min
4
Typ
6
5.8
6.8
55
75
26
25
36
35
0.8
Max
Unit
V/µs
MHz
MHz
Degrees
dB
nV/√Hz
nV/√Hz
nV/√Hz
nV/√Hz
pA/√Hz
e
n
e
n
e
n
e
n
i
n
f = 1 kHz
f = 10 kHz
f = 1 kHz
f = 10 kHz
f = 10 kHz
Rev. 0 | Page 4 of 16
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