AD626AR Analog Devices Inc, AD626AR Datasheet

IC AMP DIFF LP 12MA 8SOIC

AD626AR

Manufacturer Part Number
AD626AR
Description
IC AMP DIFF LP 12MA 8SOIC
Manufacturer
Analog Devices Inc
Datasheet

Specifications of AD626AR

Slew Rate
0.22 V/µs
Mounting Type
Surface Mount
Rohs Status
RoHS non-compliant
Amplifier Type
Differential
Number Of Circuits
1
-3db Bandwidth
100kHz
Voltage - Input Offset
50µV
Current - Supply
1.5mA
Current - Output / Channel
12mA
Voltage - Supply, Single/dual (±)
2.4 V ~ 12 V, ±1.2 V ~ 6 V
Operating Temperature
-40°C ~ 85°C
Package / Case
8-SOIC (3.9mm Width)
No. Of Amplifiers
1
Amplifier Case Style
SOIC
No. Of Pins
8
Programmable Gain Max
100
Supply Voltage Min
1.2V
Gain Min, V/v
10
Gain Max, V/v
100
Output Type
-
Gain Bandwidth Product
-
Current - Input Bias
-
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant

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PROD UCT DE SCRIP TION
The AD626 is a low cost, true sin gle-sup ply dif fer en tial am pli fi er
de signed for am pli fy ing and low-pass fi ltering small dif fer en tial
voltages from sources having a large common-mode voltage.
The AD626 can operate from either a single supply of +2.4 V to
+10 V, or dual supplies of ±1.2 V to ±6 V. The input common-mode
REV. D
Information furnished by Analog Devices is be lieved 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. No license is granted by implication or other-
wise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective companies.
FEATURES
Pin Selectable Gains of 10 and 100
True Single-Supply Operation
Optional Low-Pass Filtering
Excellent DC Performance
AC Performance
Includes Input Protection
APPLICATIONS
Current Sensing
Interface for Pressure Transducers, Position Indicators,
Single-Supply Range of +2.4 V to +10 V
Dual-Supply Range of
Wide Output Voltage Range of 30 mV to 4.7 V
Low Input Offset Voltage: 500 V Max
Large Common-Mode Range: 0 V to +54 V
Low Power: 1.2 mW (V
Good CMR of 90 dB Typ
Fast Settling Time: 24 s (0.01%)
Series Resistive Inputs (R
RFI Filters Included
Allows 50 V Continuous Overload
Strain Gages, and Other Low Level Signal Sources
Figure 1. Common-Mode Rejection vs. Frequency
140
120
100
80
60
40
20
0
0.1
1
10
FREQUENCY – Hz
S
100
1.2 V to
= +5 V)
IN
= 200 k )
1k
6 V
10k
G = 10, 100
V
S
G = 10
V
100k
= +5V
S
G = 100
V
S
=
=
5V
5V
1M
range of this amplifi er is equal to 6 (+V
+24 V CMR while operating from a +5 V sup ply. Fur ther more,
the AD626 features a CMR of 90 dB typ.
The amplifi er’s inputs are protected against continuous overload of
up to 50 V, and RFI fi lters are included in the attenuator network.
The output range is +0.03 V to +4.9 V using a +5 V sup ply. The
amplifi er provides a preset gain of 10, but gains be tween 10 and
100 can be easily con fi g ured with an external re sis tor. Fur ther -
more, a gain of 100 is available by connecting the G = 100 pin to
analog ground. The AD626 also offers low-pass fi lter capability by
connecting a ca pac i tor between the fi lter pin and analog ground.
The AD626A and AD626B operate over the industrial tem per a ture
range of –40°C to +85°C. The AD626 is available in two 8-lead
packages: a plastic mini-DIP and SOIC.
One Technology Way, P .O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
Fax: 781/326-8703
Figure 2. Input Common-Mode Range vs. Supply
25
20
15
10
5
0
1
ANALOG
FILTER
Low Cost, Single-Supply
GND
–V
–IN
8-Lead Plastic Mini-DIP (N)
S
CONNECTION DIAGRAM
Differential Amplifi er
and SOIC (R) Packages
1
AND DUAL SUPPLIES
2
4
3
V
2
© 2003 Analog Devices, Inc. All rights reserved.
CM
200k
AD626
SUPPLY VOLTAGE –
FOR SINGLE
SUPPLIES ONLY
V
100k
CM
FOR DUAL
G = 30
1/6
3
G = 2
200k
S
– 1 V) which pro vides a
V
8
7
6
5
4
AD626
+IN
+V
G = 100
OUT
www.analog.com
S
5

Related parts for AD626AR

AD626AR Summary of contents

Page 1

FEATURES Pin Selectable Gains of 10 and 100 True Single-Supply Operation Single-Supply Range of +2 +10 V Dual-Supply Range of 1 Wide Output Voltage Range 4.7 V Optional Low-Pass Filtering Excellent DC ...

Page 2

AD626–SPECIFICATIONS SINGLE SUPPLY (@+ and T S Model Parameter GAIN Gain Accuracy Gain = 10 Gain = 100 Over Temperature MIN MAX Gain Linearity Gain = 10 Gain = 100 OFFSET ...

Page 3

DUAL SUPPLY (@+ and T S Model Parameter GAIN Gain Accuracy Gain = 10 Gain = 100 Over Temperature MIN MAX Gain Linearity Gain = 10 Gain = 100 OFFSET VOLTAGE ...

Page 4

... AD626AN AD626AR AD626BN AD626AR-REEL AD626AR-REEL7 CAUTION ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily late on the human body and test equipment and can discharge without detection. Although the AD626 features proprietary ESD pro tec tion circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges ...

Page 5

V FOR SINGLE CM 15 AND DUAL SUPPLIES 10 V FOR DUAL 5 CM SUPPLIES ONLY SUPPLY VOLTAGE – TPC 1. Input Common-Mode Range vs. Supply SINGLE ...

Page 6

AD626 1000 GAIN = 100 100 V = +5V S SINGLE SUPPLY GAIN = DUAL SUPPLY 0 10 100 1k 10k FREQUENCY – Hz TPC 7. Closed-Loop Gain vs. Frequency 140 120 100 80 ...

Page 7

0.14 0.13 0. SUPPLY VOLTAGE – V TPC 13. Quiescent Supply Current vs. Supply Voltage for Single-Supply Operation 2.0 1.5 1.0 0 SUPPLY VOLTAGE – V TPC 14. ...

Page 8

AD626 100 TPC 19. Large Signal Pulse Response. V 100 TPC 20. Large Signal Pulse Response. V 100 TPC 21. Large Signal Pulse Response. V 100 ±5 ...

Page 9

TPC 25. Settling Time 10k 10k INPUT 20V p–p AD626 1k –V S Figure 3. Settling Time Test Circuit THEORY OF OPERATION The AD626 is a differential amplifi er con sist ...

Page 10

AD626 necessary to min i mize gain error. Also, any mis match be tween the total source re sis tance at each input will af fect gain and common -mode rejection (CMR). For ex am ple: ...

Page 11

CURRENT SENSOR INTERFACE A typical current sensing application, making use of the large common-mode range of the AD626, is shown in Figure 9. The cur rent being measured is sensed across resistor R R should be less than 1 k ...

Page 12

AD626 0.25 (0.0098) 0.10 (0.0040) COPLANARITY CONTROLLING DIMENSIONS ARE IN MILLIMETERS; INCH DIMENSIONS (IN PARENTHESES) ARE ROUNDED-OFF MILLIMETER EQUIVALENTS FOR REFERENCE ONLY AND ARE NOT APPROPRIATE FOR USE IN DESIGN 0.150 (3.81) 0.130 (3.30) 0.110 (2.79) 0.022 (0.56) 0.018 (0.46) ...

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