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AD8627AKSZ-R2

P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20
Precision Low Power
Single-Supply JFET Amplifiers
Data Sheet
AD8625/AD8626/AD8627
Rev. F Document Feedback
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responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other
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Tel: 781.329.4700 ©2003–2013 Analog Devices, Inc. All rights reserved.
Technical Support www.analog.com
FEATURES
SC70 package
Very low I
B
: 1 pA max
Single-supply operation: 5 V to 26 V
Dual-supply operation: ±2.5 V to ±13 V
Rail-to-rail output
Low supply current: 630 μA/amp typ
Low offset voltage: 500 μV max
Unity gain stable
No phase reversal
APPLICATIONS
Photodiode amplifiers
ATE s
Line-powered/battery-powered instrumentation
Industrial controls
Automotive sensors
Precision filters
Audio
PIN CONFIGURATIONS
03023-001
2
3
1
4
5OUT A
V–
+IN
V+
–IN
AD8627
5-Lead SC70
(KS Suffix)
NC
–IN V+
2
+IN OUT
3
V– NC
4
NC
1
7
6
5
8
AD8627
NC = NO CONNECT
8-Lead SOIC
(R-8 Suffix)
OUT A
–IN A OUT B
2
+IN A –IN B
3
V– +IN B
4
V+
1
7
6
5
8
AD8626
8-Lead SOIC
(R-8 Suffix)
V+OUT A
OUT B–IN A
–IN B+IN A
+IN BV–
AD8626
8-Lead MSOP
(RM-Suffix)
5
8
4
1
OUT A OUT D
114
–IN A –IN D
213
+IN A +IN D
312
V+ V–
411
+IN B +IN C
510
–IN B –IN C
69
OUT B OUT C
78
AD8625
14-Lead SOIC
(R-Suffix)
OUT DOUT A
–IN D–IN A
+IN D+IN A
V–V+
+IN C+IN B
–IN C–IN B
OUT COUT B
AD8625
14-Lead TSSOP
(RU-Suffix)
8
14
7
1
Figure 1.
GENERAL DESCRIPTION
The AD862x is a precision JFET input amplifier. It features
true single-supply operation, low power consumption, and
rail-to-rail output. The outputs remain stable with capacitive
loads of over 500 pF; the supply current is less than 630 μA/amp.
Applications for the AD862x include photodiode transimpedance
amplification, ATE reference level drivers, battery management,
both line powered and portable instrumentation, and remote
sensor signal conditioning, which includes automotive sensors.
The AD862x’s ability to swing nearly rail-to-rail at the input
and rail-to-rail at the output enables it to be used to buffer
CMOS DACs, ASICs, and other wide output swing devices in
single-supply systems.
The 5 MHz bandwidth and low offset are ideal for precision filters.
The AD862x is fully specified over the industrial temperature
range. (−40°C to +85°C). e AD8627 is available in both
5-lead SC70 and 8-lead SOIC surface-mount packages (SC70
packaged parts are available in tape and reel only). The AD8626
is available in MSOP and SOIC packages, while the AD8625 is
available in TSSOP and SOIC packages.
AD8625/AD8626/AD8627 Data Sheet
Rev. F | Page 2 of 20
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications ....................................................................................... 1
Pin Configurations ........................................................................... 1
General Description ......................................................................... 1
Revision History ............................................................................... 2
Specifications ..................................................................................... 3
Electrical Characteristics ............................................................. 3
Absolute Maximum Ratings ............................................................ 5
ESD Caution .................................................................................. 5
Typical Performance Characteristics ..............................................6
Applications Information .............................................................. 13
Minimizing Input Current ........................................................ 15
Photodiode Preamplifier Application...................................... 15
Output Amplifier for DACs ...................................................... 16
Eight-Pole Sallen Key Low-Pass Filter ..................................... 17
Outline Dimensions ....................................................................... 18
Ordering Guide .......................................................................... 20
REVISION HISTORY
5/13—Rev. E to Rev. F
Changes to Applications Information Section ............................ 13
Changes to Ordering Guide .......................................................... 20
12/10—Rev. D to Rev. E
Removed Table Summary Conditions Above Table 3 ................. 5
Updated Outline Dimensions ....................................................... 18
3/09—Rev. C to Rev. D
Updated Outline Dimensions ....................................................... 18
Changes to Ordering Guide .......................................................... 19
11/04—Rev. B to Rev. C
Updated Figure Codes ....................................................... Universal
Changes to Figure 17 and 18 ........................................................... 8
Changes to Figure 33 and Figure 37 ............................................. 11
Changes to Figure 38 ...................................................................... 12
Changes to Figure 39 and Figure 40 ............................................. 13
Changes to Figure 41 to Figure 44 ................................................ 14
1/04—Rev. A to Rev. B
Change to General Description ....................................................... 1
Change to Figure 10 .......................................................................... 7
Change to Figure13 ........................................................................... 7
Change to Figure 37 ....................................................................... 11
Changes to Figure 38 ...................................................................... 12
Change to Output Amplifier for DACs Section ......................... 15
Updated Outline Dimensions ....................................................... 19
10/03—Rev. 0 to Rev. A
Addition of Two New Parts ............................................... Universal
Change to General Description ....................................................... 1
Changes to Pin Configurations ....................................................... 1
Change to Specifications Table ........................................................ 3
Changes to Figure 31 ...................................................................... 10
Changes to Figure 32 ...................................................................... 11
Changes to Figure 38 ...................................................................... 12
Changes to Figure 46 ...................................................................... 16
Changes to Figure 47 ...................................................................... 16
Changes to Figure 49 ...................................................................... 17
Updated Outline Dimensions ....................................................... 18
Changes to Ordering Guide .......................................................... 19
Data Sheet AD8625/AD8626/AD8627
Rev. F | Page 3 of 20
SPECIFICATIONS
ELECTRICAL CHARACTERISTICS
@V
S
= 5 V, V
CM
= 1.5 V, T
A
= 25°C, unless otherwise noted.
Table 1.
Parameter Symbol Conditions Min Typ Max Unit
INPUT CHARACTERISTICS
Offset Voltage V
OS
0.05 0.5 mV
−40°C < T
A
< +85°C 1.2 mV
Input Bias Current I
B
0.25 1 pA
–40°C < T
A
< +85°C 60 pA
Input Offset Current I
OS
0.5 pA
–40°C < T
A
< +85°C 25 pA
Input Voltage Range 0 3 V
Common-Mode Rejection Ratio CMRR V
CM
= 0 V to 2.5 V 66 87 dB
Large Signal Voltage Gain A
VO
R
L
= 10 kΩ, V
O
= 0.5 V to 4.5 V 100 230 V/mV
Offset Voltage Drift ∆V
OS
/∆T –40°C < T
A
< +85°C 2.5 µV/°C
OUTPUT CHARACTERISTICS
Output Voltage High V
OH
4.92 V
I
L
= 2 mA, –40°C < T
A
< +85°C 4.90 V
Output Voltage Low V
OL
0.075 V
I
L
= 2 mA, –40°C < T
A
< +85°C 0.08 V
Output Current I
OUT
±10 mA
POWER SUPPLY
Power-Supply Rejection Ratio PSRR V
S
= 5 V to 26 V 80 104 dB
Supply Current/Amplifier I
SY
630 785 µA
–40°C < T
A
< +85°C 800 µA
DYNAMIC PERFORMANCE
Slew Rate
SR
5
V/µs
Gain Bandwidth Product GBP 5 MHz
Phase Margin Ø
M
60 Degrees
NOISE PERFORMANCE
Voltage Noise e
n
p-p 0.1 Hz to 10 Hz 1.9 µV p-p
Voltage Noise Density e
n
f = 1 kHz 17.5 nV/√Hz
Current Noise Density i
n
f = 1 kHz 0.4 fA/√Hz
Channel Separation C
s
f = 1 kHz 104 dB
P1-P3P4-P6P7-P9P10-P12P13-P15P16-P18P19-P20

AD8627AKSZ-R2

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Analog Devices Inc.
Description:
Precision Amplifiers Prec Low Pwr JFET SGL-Supply
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