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AD8293G160ARJZ-R7 Datasheet

  • AD8293G160ARJZ-R7

  • Low Cost, Zero-Drift In-Amp with Filter and Fixed Gain

  • AD

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Low Cost, Zero-Drift In-Amp
with Filter and Fixed Gain
AD8293G80/AD8293G160
FEATURES
Small package: 8-lead SOT-23
Reduced component count
Incorporates gain resistors and filter resistors
Low offset voltage: 20 渭V maximum
Low offset drift: 0.3 渭V/擄C maximum
Low gain drift: 25 ppm/擄C maximum
High CMR: 140 dB typical
Low noise: 0.7 渭V p-p from 0.01 Hz to 10 Hz
Single-supply operation: 1.8 V to 5.5 V
Rail-to-rail output
Available in 2 fixed-gain models
FUNCTIONAL BLOCK DIAGRAM
7
5
6
+V
S
+IN
R1
4k鈩?/div>
1
FILT
R2
OUT
8
IN-AMP
R3
5k鈩?/div>
ADC OUT
4
鈥揑N
OUTPUT TO ADC
WITH ANTIALIASING
FILTER
07451-001
GND REF
2
3
AD8293Gxx
Figure 1.
+5V
APPLICATIONS
Current sensing
Strain gauges
Laser diode control loops
Portable medical instruments
Thermocouple amplifiers
0.1碌F
7
5
C2
6
+V
S
LOAD
8
FILT
R2
OUT
+IN
R1
4k鈩?/div>
IN-AMP
I
R
SHUNT
1
R3
5k鈩?/div>
ADC OUT
4
ADC
C3
+3.3V
REF
鈥揑N
GND REF
2
3
1.8V
DC-DC
Figure 2. Measuring Current Using the AD8293G80/AD8293G160
Table 1. AD8293Gxx Models and Gains
Model
AD8293G80
AD8293G160
Gain
80
160
GENERAL DESCRIPTION
The AD8293G80/AD8293G160 are small, low cost, precision
instrumentation amplifiers that have low noise and rail-to-rail
outputs. They are available in two fixed-gain models: 80 and 160.
They incorporate the gain setting resistors and filter resistors,
reducing the number of ancillary components. For example,
only two external capacitors are needed to implement a 2-pole
filter. The AD8293G80/AD8293G160 also feature low offset
voltage, offset drift, and gain drift coupled with high common-
mode rejection. They are capable of operating on a supply of
1.8 V to 5.5 V.
With a low offset voltage of 20 渭V (AD8293G160B), an offset
voltage drift of 0.3 渭V/擄C, and a voltage noise of only 0.7 渭V p-p
(0.01 Hz to 10 Hz), the AD8293G80/AD8293G160 are ideal
for applications where error sources cannot be tolerated.
Precision instrumentation, position and pressure sensors,
medical instrumentation, and strain gauge amplifiers benefit
from the low noise, low input bias current, and high common-
mode rejection. The small footprint and low cost are ideal for
high volume applications.
The small package and low power consumption allow the maxi-
mum channel density and the minimum board size required for
portable systems. Designed for ease of use, these instrumentation
amplifiers, unlike more traditional ones, have a buffered reference,
eliminating the need for an additional op amp to set the reference
voltage to midsupply.
The AD8293G80/AD8293G160 are specified over the industrial
temperature range from 鈭?0擄C to +85擄C. The AD8293G80/
AD8293G160 are available in a halogen-free, Pb-free, 8-lead SOT-23.
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: 781.461.3113
漏2008 Analog Devices, Inc. All rights reserved.
07451-002
AD8293Gxx
0.1碌F
10碌F

AD8293G160ARJZ-R7 產(chǎn)品屬性

  • 1

  • 集成電路 (IC)

  • Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

  • -

  • 儀表

  • 1

  • 滿擺幅

  • -

  • -

  • 500Hz

  • 400pA

  • 9µV

  • 1mA

  • 35mA

  • 1.8 V ~ 5.5 V，±0.9 V ~ 2.75 V

  • -40°C ~ 85°C

  • 表面貼裝

  • SOT-23-8

  • SOT-23-8

  • Digi-Reel®

  • AD8293G160ARJZ-R7DKR

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