AD AD8624 Quad, low power, precision rail-to-rail output op amp Datasheet

PIN CONFIGURATIONS
Very low offset voltage: 125 μV maximum
Supply current: 250 μA maximum
Input bias current: 200 pA maximum
Low input offset voltage drift: 0.5 μV/°C
Very low voltage noise: 11 nV/√Hz
Operating temperature: −40°C to +125°C
Rail-to-rail output swing
±2.5 V to ±18 V operation
OUT A
1
14
OUT D
–IN A
2
13
–IN D
+IN A
3
12
+IN D
V+
4
+IN B
5
–IN B
6
9
–IN C
OUT B
7
8
OUT C
AD8508
TOP VIEW
11 V–
(Not to Scale)
10 +IN C
06900-045
FEATURES
OUT D
NC
16
15
14
13
–IN A 1
+IN A 2
VCC 3
12
–IN D
ADA4004-4
11
+IN D
TOP VIEW
(Not to Scale)
10
VEE
9
+IN C
5
6
7
8
–IN B
OUT C
–IN C
+IN B 4
NC = NO CONNECT
05577-090
Portable precision instrumentation
Laser diode control loops
Strain gage amplifiers
Medical instrumentation
Thermocouple amplifiers
OUT A
APPLICATIONS
NC
Figure 1. 14-Lead TSSOP (RU-14)
OUT B
Preliminary Technical Data
Quad, Low Power, Precision
Rail-to-Rail Output Op Amp
AD8624
Figure 2. 16-Lead LFCSP
(CP-16-4 Suffix)
GENERAL DESCRIPTION
The AD8624 is a quad, precision rail-to-rail output operational
amplifier with a low supply current of only 350 μA maximum
over temperature and supply voltages. It offers low offset, drift,
and voltage noise combined with very low input bias currents
over the full operating temperature range.
Table 1. Low Power Op Amps
With typical offset voltage of only 10 μV, offset drift of 0.5 μV/°C,
and noise of only 11nV/√Hz, it is perfectly suited for
applications where large error sources cannot be tolerated.
Many systems can take advantage of the low noise, dc precision,
and rail-to-rail output swing provided by the ADA8624 to
maximize the signal-to-noise ratio and dynamic range for low
power operation.
Supply
40 V
36 V
12 V to 16 V
5V
Single
OP97
OP297
OP196
AD8663
OP296
AD8667
AD8603
Dual
The AD8624 is specified over the extended industrial
temperature range of −40°C to +125°C. The AD8624 is available
in an 14-lead TSSOP and 16-lead LFCSP (4x4x0.85mm)
surface-mount package. The AD8624 is part of a growing
family of 36 V, low power op amps from Analog Devices.
Quad
OP497
OP777
OP1177
OP727
OP2177
AD706
AD8622
OP747
OP4177
AD704
OP496
AD8669
AD8607
AD8609
Rev. PrA
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
©2009 Analog Devices, Inc. All rights reserved.
AD8624
Preliminary Technical Data
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS—±2.5 V OPERATION
VS = ±2.5 V, VCM = 0 V, VO = 0 V, TA = +25°C, unless otherwise specified.
Table 2.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Symbol
Conditions
Min
VOS
Offset Voltage Drift
Input Bias Current
ΔVOS/ΔT
IB
Input Offset Current
IOS
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +125°C
Typ
Max
Unit
10
125
230
1.2
200
400
200
300
+1.3
μV
μV
μV/°C
pA
pA
pA
pA
V
dB
dB
dB
dB
GΩ
TΩ
pF
pF
0.5
30
−40°C ≤ TA ≤ +125°C
Input Voltage Range
Common-Mode Rejection Ratio
CMRR
Open-Loop Gain
AVO
Input Resistance, Differential Mode
Input Resistance, Common Mode
Input Capacitance, Differential Mode
Input Capacitance, Common Mode
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short-Circuit Current
Closed-Loop Output Impedance
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
Phase Margin
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Uncorrelated Current Noise Density
Correlated Current Noise Density
25
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +125°C
VCM = −1.3 V to +1.3 V
−40°C ≤ TA ≤ +125°C
RL = 10 kΩ, VO = −2.0 V to +2.0 V
−40°C ≤ TA ≤ +125°C
−1.3
110
107
118
109
RINDM
RINCM
CINDM
CINCM
VOH
VOL
ISC
ZOUT
PSRR
ISY
120
135
1
1
5.5
3
RL = 100 kΩ to ground
−40°C ≤ TA ≤ +125°C
RL = 10 kΩ to ground
−40°C ≤ TA ≤ +125°C
RL = 100 kΩ to ground
−40°C ≤ TA ≤ +125°C
RL = 10 kΩ to ground
−40°C ≤ TA ≤ +125°C
2.45
2.41
2.40
2.36
2.45
−2.49
−2.45
−2.45
−2.41
−2.40
−2.36
±30
2
F = 1 kHz, Av = 1
VS = ±2.0 V to ±18.0 V
−40°C ≤ TA ≤ +125°C
IO = 0 mA
−40°C ≤ TA ≤ +125°C
2.49
125
120
145
175
225
310
V
V
V
V
V
V
V
V
mA
Ω
dB
dB
μA
μA
SR
GBP
ΦM
RL = 10 kΩ, CL = 20 pF, AV = 1
CL = 20 pF, AV = 1
CL = 20 pF, AV = 1
0.4
580
72
V/μs
kHz
Degrees
en p-p
en
in
in
f = 0.1 Hz to 10 Hz
f = 1 kHz
f = 1 kHz
f = 1 kHz
0.2
12
0.15
0.07
μV p-p
nV/√Hz
pA/√Hz
pA/√Hz
Rev. PrA | Page 2 of 4
Preliminary Technical Data
AD8624
ELECTRICAL CHARACTERISTICS—±15 V OPERATION
VS = ±15 V, VCM = 0 V, VO = 0 V, TA = +25°C, unless otherwise specified.
Table 3.
Parameter
INPUT CHARACTERISTICS
Offset Voltage
Symbol
Conditions
Min
VOS
Offset Voltage Drift
Input Bias Current
ΔVOS/ΔT
IB
Input Offset Current
IOS
−40°C ≤ TA ≤ +125°C
−40°C ≤ TA ≤ +125°C
Typ
Max
Unit
10
125
230
1.2
200
500
200
500
+13.8
μV
μV
μV/°C
pA
pA
pA
pA
V
dB
dB
dB
dB
GΩ
TΩ
pF
pF
0.5
45
−40°C ≤ TA ≤ +125°C
35
−40°C ≤ TA ≤ +125°C
Input Voltage Range
Common-Mode Rejection Ratio
CMRR
Open-Loop Gain
AVO
Input Resistance, Differential Mode
Input Resistance, Common Mode
Input Capacitance, Differential Mode
Input Capacitance, Common Mode
OUTPUT CHARACTERISTICS
Output Voltage High
Output Voltage Low
Short-Circuit Current
Closed-Loop Output Impedance
POWER SUPPLY
Power Supply Rejection Ratio
Supply Current/Amplifier
DYNAMIC PERFORMANCE
Slew Rate
Gain Bandwidth Product
Phase Margin
NOISE PERFORMANCE
Voltage Noise
Voltage Noise Density
Uncorrelated Current Noise Density
Correlated Current Noise Density
VCM = −13.8 V to +13.8 V
−40°C ≤ TA ≤ +125°C
RL = 10 kΩ, VO = −13.5 V to +13.5 V
−40°C ≤ TA ≤ +125°C
−13.8
125
112
125
120
RINDM
RINCM
CINDM
CINCM
VOH
VOL
ISC
ZOUT
PSRR
ISY
135
137
1
1
5.5
3
RL = 10 kΩ to ground
−40°C ≤ TA ≤ +125°C
RL = 100 kΩ to ground
−40°C ≤ TA ≤ +125°C
RL = 10 kΩ to ground
−40°C ≤ TA ≤ +125°C
RL = 100 kΩ to ground
−40°C ≤ TA ≤ +125°C
14.94
14.84
14.86
14.75
14.89
−14.97
−14.89
−14.94
−14.92
−14.90
−14.80
±40
1.5
f = 1kHz, Av = 1
VS = ±2.0 V to ±18.0 V
−40°C ≤ TA ≤ +125°C
IO = 0 mA
IO = 0 mA, −40°C ≤ TA ≤ +125°C
14.97
125
120
145
215
250
350
V
V
V
V
V
V
V
V
mA
Ω
dB
dB
μA
μA
SR
GBP
ΦM
RL = 10 kΩ, CL = 20 pF, AV = 1
CL = 20 pF, AV = 1
CL = 20 pF, AV = 1
0.48
600
72
V/μs
kHz
Degrees
en p-p
en
in
in
f = 0.1 Hz to 10 Hz
f = 1 kHz
f = 1 kHz
f = 1 kHz
0.2
11
0.15
0.06
μV p-p
nV/√Hz
pA/√Hz
pA/√Hz
Rev. PrA | Page 3 of 4
AD8624
Preliminary Technical Data
ABSOLUTE MAXIMUM RATINGS
Table 4.
Parameter
Supply Voltage
Input Voltage
Input Current1
Differential Input Voltage
Output Short-Circuit Duration to GND
Storage Temperature Range
Operating Temperature Range
Junction Temperature Range
Lead Temperature (Soldering, 60 sec)
1
Rating
± 18 V
±V supply
±10 mA
±10 V
Indefinite
−65°C to +150°C
−40°C to +125°C
−65°C to +150°C
300°C
The input pins have clamp diodes to power the supply pins. The input
current should be limited to 10 mA or less whenever input signals exceed
the power supply rail by 0.5 V.
THERMAL RESISTANCE
θJA is specified for the worst-case conditions, that is, a device
soldered in a circuit board for surface-mount packages. This
was measured using a standard 2-layer board.
Table 5. Thermal Resistance
Package Type
14-Lead TSSOP (RU-14)
16-Lead LFCSP (CP-16)
ESD CAUTION
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 indicated in the operational
section of this specification is not implied. Exposure to absolute
maximum rating conditions for extended periods may affect
device reliability.
©2009 Analog Devices, Inc. All rights reserved. Trademarks and
registered trademarks are the property of their respective owners.
PR08573-0-9/09(PrA)
Rev. PrA | Page 4 of 4
θJA
TBD
TBD
θJC
TBD
TBD
Unit
°C/W
°C/W
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