Analog Devices AD8565, AD8566, AD8567 Service Manual
16 V Rail-to-Rail
FEATURES
Single-supply operation: 4.5 V to 16 V
Input capability beyond the rails
Rail-to-rail output swing
Continuous output current: 35 mA
Peak output current: 250 mA
Offset voltage: 10 mV
Slew rate: 6 V/μs
Unity gain stable with large capacitive loads
Supply current: 700 μA per amplifier
APPLICATIONS
LCD reference drivers
Portable electronics
Communications equipment
GENERAL DESCRIPTION
The AD8565, AD8566, and AD8567 are low cost, single-supply,
rail-to-rail input and output operational amplifiers optimized
for LCD monitor applications. They are built on an advanced
high voltage CBCMOS process. The AD8565 contains a single
amplifier, the AD8566 has two amplifiers, and the AD8567 has
four amplifiers.
These LCD op amps have high slew rates, 35 mA continuous
output drive, 250 mA peak output drive, and a high capacitive
load drive capability. They have a wide supply range and offset
voltages below 10 mV. The AD8565, AD8566, and AD8567 are
ideal for LCD grayscale reference buffer and V
The AD8565, AD8566, and AD8567 are specified over the
−40°C to +85°C temperature range. The AD8565 single is
available in a 5-lead SC70 package. The AD8566 dual is
available in an 8-lead MSOP package. The AD8567 quad is
available in a 14-lead TSSOP package and a 16-lead LFCSP
package.
applications.
COM
Operational Amplifiers
AD8565/AD8566/AD8567
PIN CONFIGURATIONS
AD8565
1
V+
2
3
+IN
TOP VIEW
(Not to Scale)
Figure 1. 5-Lead SC70 Pin Configuration
AD8566
1
OUT A
–IN A
2
+IN A
36
V–
45
TOP VIEW
(Not to Scale)
Figure 2. 8-Lead MSOP Pin Configuration
1
OUT A
–IN A
3
+IN A
AD8567
TOP VIEW
4
V+
(Not to Scale)
510
+IN B
–IN B
OUT B
Figure 3. 14-Lead TSSOP Pin Configuration
NC
16
1
–IN A
+IN A
V+
+IN B
AD8567
2
TOP VIEW
3
(Not to Scale)
4
5
OUT AOUT DNC
13
1415
8
76
5
4
12
11
10
8
7
14
12
11
9
V–OUT
–IN
V+
OUT B
–IN B
+IN B
312
96
87
OUT D
–IN D
+IN D
V–
+IN C
–IN C
OUT C
–IN D
+IN D
V–
+IN C
01909-001
01909-002
01909-003
Rev. D
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibility is assumed by Anal og Devices for its use, nor for any infringements of patents or ot her
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.
–IN B
NC = NO CONNECT
OUT B
OUT C
–IN C
01909-004
Figure 4. 16-Lead LFCSP Pin Configuration
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.
AD8565/AD8566/AD8567
TABLE OF CONTENTS
Features .............................................................................................. 1
Input Overvoltage Protection......................................................9
Applications....................................................................................... 1
General Description......................................................................... 1
Pin Configurations ........................................................................... 1
Revision History ............................................................................... 2
Specifications..................................................................................... 3
Electrical Characteristics............................................................. 3
Absolute Maximum Ratings............................................................ 4
ESD Caution.................................................................................. 4
Typical Performance Characteristics ............................................. 5
Theory of Operation ........................................................................ 9
REVISION HISTORY
2/06—Rev C to Rev. D
Updated Format..................................................................Universal
Changes to Figure 6 and Figure 8................................................... 5
Added the Thermal Pad—AD8567 Section................................ 10
Changes to Ordering Guide.......................................................... 13
Output Phase Reversal............................................................... 10
Power Dissipation....................................................................... 10
Thermal Pad—AD8567............................................................. 10
Total Harmonic Distortion + Noise (THD+N)...................... 11
Short-Circuit Output Conditions............................................. 11
LCD Panel Applications ............................................................ 11
Outline Dimensions ....................................................................... 12
Ordering Guide .......................................................................... 13
3/04—Rev B to Rev. C
Changes to Specifications................................................................ 2
Changes to TPC 4............................................................................. 4
Changes to TPC 10........................................................................... 5
Changes to TPC 14........................................................................... 6
Changes to TPC 20........................................................................... 7
12/03—Rev. A to Rev. B
Updated Ordering Guide................................................................. 3
Updated Outline Dimensions....................................................... 11
10/01—Rev. 0 to Rev. A
Edit to 16-Lead CSP and 5-Lead SC70 Pin Configuration......... 1
Edit to Ordering Guide.................................................................... 3
7/01—Revision 0: Initial Version
Rev. D | Page 2 of 16
AD8565/AD8566/AD8567
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
4.5 V ≤ VS ≤ 16 V, VCM = VS/2, TA = 25°C, unless otherwise noted.
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
Offset Voltage Drift ΔVOS/ΔT −40°C ≤ TA ≤ +85°C 5 μV/°C
Input Bias Current I
B
−40°C ≤ TA ≤ +85°C 800 nA
Input Offset Current I
OS
−40°C ≤ TA ≤ +85°C 130 nA
Input Voltage Range Common-mode input −0.5 VS + 0.5 V
Common-Mode Rejection Ratio CMRR VCM = 0 to VS, −40°C ≤ TA ≤ +85°C 54 95 dB
Large Signal Voltage Gain AVO RL = 10 kΩ, VO = 0.5 V to (VS − 0.5 V) 3 10 V/mV
Input Impedance Z
Input Capacitance C
IN
IN
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
V
−40°C ≤ TA ≤ +85°C 15.75 V
V
−40°C ≤ TA ≤ +85°C 4.1 V
Output Voltage Low V
OL
V
−40°C ≤ TA ≤ +85°C 250 mV
V
−40°C ≤ TA ≤ +85°C 400 mV
Continuous Output Current I
Peak Output Current I
OUT
PK
POWER SUPPLY
Supply Voltage V
S
Power Supply Rejection Ratio PSRR VS = 4 V to 17 V, −40°C ≤ TA ≤ +85°C 70 90 dB
Supply Current/Amplifier I
SY
−40°C ≤ TA ≤ +85°C 1 mA
DYNAMIC PERFORMANCE
Slew Rate SR RL = 10 kΩ, CL = 200 pF 4 6 V/μs
Gain Bandwidth Product GBP RL = 10 kΩ, CL = 10 pF 5 MHz
Phase Margin Øo RL = 10 kΩ, CL = 10 pF 65 Degrees
Channel Separation 75 dB
NOISE PERFORMANCE
Voltage Noise Density e
e
Current Noise Density i
n
n
n
2 10 mV
80 600 nA
1 80 nA
400 kΩ
1 pF
IL = 100 μA VS − 0.005 V
= 16 V, IL = 5 mA 15.85 15.95 V
S
= 4.5 V, IL = 5 mA 4.2 4.38 V
S
IL = 100 μA 5 mV
= 16 V, IL = 5 mA 42 150 mV
S
= 4.5 V, IL = 5 mA 95 300 mV
S
35 mA
VS = 16 V 250 mA
4.5 16 V
VO = VS/2, no load 700 850 μA
f = 1 kHz 26 nV/√Hz
f = 10 kHz 25 nV/√Hz
f = 10 kHz 0.8 pA/√Hz
Rev. D | Page 3 of 16
AD8565/AD8566/AD8567
ABSOLUTE MAXIMUM RATINGS
Table 2.
Parameter Ratings
Supply Voltage (VS) 18 V
Input Voltage −0.5 V to VS + 0.5 V
Differential Input Voltage V
S
Storage Temperature Range −65°C to +150°C
Operating Temperature Range −40°C to +85°C
Junction Temperature Range −65°C to +150°C
Lead Temperature (Soldering, 60 sec) 300°C
Stresses above 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 listed in the operational sections
of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
Table 3.
Package Type θ
1
JA
θ
JC
Unit
5-Lead SC70 (KS-5) 376 126 °C/W
8-Lead MSOP (RM-8) 210 45 °C/W
14-Lead TSSOP (RU-14) 180 35 °C/W
16-Lead LFCSP (CP-16-4) 38
1
θJA is specified for worst-case conditions, that is, θJA is specified for a device
soldered onto a circuit board for surface-mount packages.
2
DAP is soldered down to PCB.
2
30
2
°C/W
ESD CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the
human body and test equipment and can discharge without detection. Although this product features
proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy
electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance
degradation or loss of functionality.
Rev. D | Page 4 of 16
AD8565/AD8566/AD8567
√
TYPICAL PERFORMANCE CHARACTERISTICS
0
VCM = VS/2
–0.25
1000
Hz)
4.5V ≤ VS ≤ 16V
T
= 25°C
A
–0.50
–0.75
–1.00
INPUT OFFSET VOLTAG E (mV)
–1.25
–1.50
CURRENT NOISE DENS ITY (pA/√Hz)
= 16V
V
S
VS = 4.5V
–40
25 85
TEMPERATURE (°C)
Figure 5. Input Offset Voltage vs. Temperature
10
4.5V ≤ VS ≤ 16V
T
= 25°C
A
1
100
10
VOLTAGE NOISE DENSITY (nV/
1
10 100 1k 10k
01909-005
FREQUENCY (Hz)
01909-008
Figure 8. Voltage Noise Density vs. Frequency
1.0
0.8
0.6
0.4
0.2
SUPPLY CURRENT/AMPLIF IER (mA)
V
O
A
V
T
A
= VS/2
= +1
= 25°C
0.1
10 100 1k 10k
FREQUENCY (Hz)
01909-006
Figure 6. Current Noise Density vs. Frequency
VS = 16V
R
= 10kΩ
L
C
= 100pF
L
A
= +1
V
T
= 25°C
A
TIME (50mV/DIV)
FREQUENCY (1µs/DIV)
01909-007
Figure 7. Small Signal Transient Response
0
SUPPLY VOLTAGE (V)
Figure 9. Supply Current/Amplifier vs. Supply Voltage
0.80
VCM = VS/2
0.75
V
= 16V
S
0.70
0.65
0.60
= 4.5V
V
0.55
SUPPLY CURRENT/AMPLIF IER (mA)
0.50
–40
TEMPERATURE (°C)
S
25 85
Figure 10. Supply Current/Amplifier vs. Temperature
181614121086420
01909-009
01909-010
Rev. D | Page 5 of 16
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