Datasheet AD22057 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | Single-Supply Sensor Interface Amplifier |
| Pages / Page | 9 / 1 — Single-Supply Sensor. Interface Amplifier. AD22057. FEATURES. FUNCTIONAL … |
| Revision | B |
| File Format / Size | PDF / 164 Kb |
| Document Language | English |
Single-Supply Sensor. Interface Amplifier. AD22057. FEATURES. FUNCTIONAL BLOCK DIAGRAM. Gain of. 20. Alterable from. 1 to
Model Line for this Datasheet
Text Version of Document
a
Single-Supply Sensor Interface Amplifier AD22057 FEATURES FUNCTIONAL BLOCK DIAGRAM Gain of
ⴛ
20. Alterable from
ⴛ
1 to
ⴛ
160 Input CMR from Below Ground to 6
ⴛ
(VS – 1 V) +VS OFS A1 A2 Output Span 20 mV to (VS – 0.2) V 1-, 2-, 3-Pole Low-Pass Filtering Available AD22057 Accurate Midscale Offset Capability Differential Input Resistance 400 k
⍀
IN+ A1 A2 Drives 1 k OUT
⍀
Load to +4 V Using VS = +5 V IN– Supply Voltage: +3.0 V to +36 V Transient Spike Protection and RFI Filters Included Peak Input Voltage (40 ms): 60 V Reversed Supply Protection: –34 V GND Operating Temperature Range: –40
ⴗ
C to +125
ⴗ
C APPLICATIONS Current Sensing Motor Control Interface for Pressure Transducers, Position Indicators, Strain Gages, and Other Low Level Signal Sources Accelerometers GENERAL DESCRIPTION
a +5 V supply with excellent rejection of this common-mode The AD22057 is a single-supply difference amplifier for ampli- voltage. This is achieved by the use of a special resistive attenua- fying and low-pass filtering small differential voltages (typically tor at the input, laser trimmed to a very high differential balance. 100 mV FS at a gain of 40) from sources having a large common- Provisions are included for optional low-pass filtering and gain mode voltage. adjustment. An accurate midscale offset feature allows bipolar Supply voltages from +3.0 V to +36 V can be used. The input signals to be amplified. common-mode range extends from below ground to +24 V using
+VS (CAR BATTERY) +5V SOLENOID LOAD ANALOG OUTPUT 4V PER AMP 100m
V
AD22057 200k
V
CORNER FREQUENCY CMOS DRIVER = 0.796Hz-
m
F C POWER ANALOG GROUND DARLINGTON CHASSIS SINGLE-POLE LOW-PASS FILTERING, GAIN: 40
Figure 1. Typical Application Circuit for a Current Sensor Interface REV. B
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
use, nor for any infringements of patents or other rights of third parties
Tel: 781.329.4700 ©2017 Analog Devices, Inc. All rights reserved.
which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Technical Support www.analog.com
Single-Supply Sensor Interface Amplifier AD22057 FEATURES FUNCTIONAL BLOCK DIAGRAM Gain of
ⴛ
20. Alterable from
ⴛ
1 to
ⴛ
160 Input CMR from Below Ground to 6
ⴛ
(VS – 1 V) +VS OFS A1 A2 Output Span 20 mV to (VS – 0.2) V 1-, 2-, 3-Pole Low-Pass Filtering Available AD22057 Accurate Midscale Offset Capability Differential Input Resistance 400 k
⍀
IN+ A1 A2 Drives 1 k OUT
⍀
Load to +4 V Using VS = +5 V IN– Supply Voltage: +3.0 V to +36 V Transient Spike Protection and RFI Filters Included Peak Input Voltage (40 ms): 60 V Reversed Supply Protection: –34 V GND Operating Temperature Range: –40
ⴗ
C to +125
ⴗ
C APPLICATIONS Current Sensing Motor Control Interface for Pressure Transducers, Position Indicators, Strain Gages, and Other Low Level Signal Sources Accelerometers GENERAL DESCRIPTION
a +5 V supply with excellent rejection of this common-mode The AD22057 is a single-supply difference amplifier for ampli- voltage. This is achieved by the use of a special resistive attenua- fying and low-pass filtering small differential voltages (typically tor at the input, laser trimmed to a very high differential balance. 100 mV FS at a gain of 40) from sources having a large common- Provisions are included for optional low-pass filtering and gain mode voltage. adjustment. An accurate midscale offset feature allows bipolar Supply voltages from +3.0 V to +36 V can be used. The input signals to be amplified. common-mode range extends from below ground to +24 V using
+VS (CAR BATTERY) +5V SOLENOID LOAD ANALOG OUTPUT 4V PER AMP 100m
V
AD22057 200k
V
CORNER FREQUENCY CMOS DRIVER = 0.796Hz-
m
F C POWER ANALOG GROUND DARLINGTON CHASSIS SINGLE-POLE LOW-PASS FILTERING, GAIN: 40
Figure 1. Typical Application Circuit for a Current Sensor Interface REV. B
Document Feedback
Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
use, nor for any infringements of patents or other rights of third parties
Tel: 781.329.4700 ©2017 Analog Devices, Inc. All rights reserved.
which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Technical Support www.analog.com
