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MFG:ADI D/C:09
Part Number: AD22057
MFG: ADI
D/C: 09
Description: The AD22057 is a single-supply difference amplifier for amplifying and low-pass filtering small differ...
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AD22057
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DataSheet
General Description
AD22057 General Description
The AD22057 is a single-supply difference amplifier for amplifying and low-pass filtering small differential voltages (typically 100 mV FS at a gain of 40) from sources having a large commonmode voltage.
Supply voltages from +3.0 V to +36 V can be used. The input common-mode range extends from below ground to +24 V usinga +5 V supply with excellent rejection of this common-mode voltage. This is achieved by the use of a special resistive attenuator at the input, laser trimmed to a very high differential balance. Provisions are included for optional low-pass filtering and gain adjustment. An accurate midscale offset feature allows bipolar signals to be amplified.
AD22057 Maximum Ratings
Supply Voltage . . . . . . . . . . . . . . . . . . . . . . . . +3.0 V to +36 V
Peak Input Voltage (40 ms) . . . . . . . . . . . . . . . . . . . . . . +60 V
VOFS (Pin 7 to Pin 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . .+20 V
Reversed Supply Voltage Protection . . . . . . . . . . . . . . . 34 V
Operating Temperature . . . . . . . . . . . . . . . . 40°C to +125°C
Storage Temperature . . . . . . . . . . . . . . . . . . 65°C to +150°C
Output Short Circuit Duration . . . . . . . . . . . . . . . . Indefinite
Lead Temperature Range (Soldering 60 sec) . . . . . . . . +300°C
Peak Input Voltage (40 ms) . . . . . . . . . . . . . . . . . . . . . . +60 V
VOFS (Pin 7 to Pin 2) . . . . . . . . . . . . . . . . . . . . . . . . . . . .+20 V
Reversed Supply Voltage Protection . . . . . . . . . . . . . . . 34 V
Operating Temperature . . . . . . . . . . . . . . . . 40°C to +125°C
Storage Temperature . . . . . . . . . . . . . . . . . . 65°C to +150°C
Output Short Circuit Duration . . . . . . . . . . . . . . . . Indefinite
Lead Temperature Range (Soldering 60 sec) . . . . . . . . +300°C
AD22057 Features
`Gain of 320. Alterable from 31 to 3160
`Input CMR from Below Ground to 63 (VS 1 V)
`Output Span 20 mV to (VS 0.2) V
`1-, 2-, 3-Pole Low-Pass Filtering Available
`Accurate Midscale Offset Capability
`Differential Input Resistance 400 kV
`Drives 1 kV Load to +4 V Using VS = +5 V
`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
`Operating Temperature Range: 408C to +1258C
`Input CMR from Below Ground to 63 (VS 1 V)
`Output Span 20 mV to (VS 0.2) V
`1-, 2-, 3-Pole Low-Pass Filtering Available
`Accurate Midscale Offset Capability
`Differential Input Resistance 400 kV
`Drives 1 kV Load to +4 V Using VS = +5 V
`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
`Operating Temperature Range: 408C to +1258C
AD22057 Typical Application
·Current Sensing
·Motor Control
·Interface for Pressure Transducers, Position Indicators,
·Strain Gages, and Other Low Level Signal Sources
·Accelerometers
·Motor Control
·Interface for Pressure Transducers, Position Indicators,
·Strain Gages, and Other Low Level Signal Sources
·Accelerometers
AD22057 Connection Diagram
AD22057
PDF/DataSheet Download
- Datasheet: AD22057
- File Size: 197423 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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AD22057 Relative Products
AD22055
The AD22055 accepts a differential signal from a bridge transducer whose common-mode signal can be anywhere between the power supplies.
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