AD22057:  Single Supply Sensor Interface Amplifier

The AD22057 is a single-supply difference amplifier for the amplification and low-pass filtering of small differential voltages from sources having a large common-mode voltage.

Supply ...More

AD22057:  Single Supply Sensor Interface Amplifier

Product Description

The AD22057 is a single-supply difference amplifier for the amplification and low-pass filtering of small differential voltages from sources having a large common-mode voltage.

Supply voltages from +3 V to +36 V can be used. The input common-mode range extends from below ground to 24 V using a +5 V supply with excellent rejection of this common-mode voltage.

This range is achieved by the use of a special resitive attenuator at the input, laser trimmed to a very high differential balance. Low initial offset voltage and offset voltage drift are specified, and long-term stability of gain and offset voltage is also provided.

Provisions are included for optional low-pass filtering and gain adjustment. An accurate midscale offset feature allows bipolar signals to be amplified.

Features

  • Gain of ×20 Alterable from ×1 to ×160
  • Input CMR from Below Ground to 6× (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 kΩ
  • Drives 1kΩ 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: -40°C
    to +125°C

Diagrams

AD22057 Diagram
Functional Block Diagram for AD22057

技术指标

Single/Dual Supply Single
Voltage Supply (Vmax) +26V
Gain Range (min to max) 20
Bandwidth G=10 (kHz typ) 30kHz
CMRR (dB) 80dB
Temperature Range -40 to +125
Supply Current (max) 0.5mA
Package DIP,SOIC
Vosi (µV) 1000µV

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订阅新产品资料
Part# Common Mode Range (V) Bandwidth G=10 (kHz typ) CMRR (dB) Gain Range (min to max) Voltage Supply (Vmin) Voltage Supply (Vmax) Supply Current (max) VosiTC (µV/deg C) Gain temp co. Temperature Range Package Price* (1000-4999)
AD22057 -1 to 24 30 80 20 +3 +26 0.5mA - - -40 to +125 DIP, SOIC $4.62
AD626 0 to 54 100 66 90 ±2.4 ±6 2mA 0.000006 150ppm/C -40 to +85 DIP, SOIC $3.70
AD628 +/- 100 600 77 100 ±5 ±18 1.6mA - - -40 to +85 SOIC $1.78
AD629 +/- 270 500 77 1 ±2.5 ±18 1mA - - -40 to +85 DIP, SOIC $2.84
AD8202 -12 to 30 50 82 20 +3.5 +12 0.25mA 10 20ppm/C -40 to +125 Die, SOIC, SOP $1.51
AD8203 -12 to 30 60 82 14 +3.5 +12 0.25mA 10 20ppm/C -40 to +125 SOP $1.37
AD8205 -2 to 65 50 78 50 +4.5 +5 2mA 15 30ppm/C -40 to +125 Die, SOIC $1.51
AD8206 -2 to 65 100 76 20 +4.5 +5.5 2mA 15 30ppm/C -40 to +125 Die, SOIC $1.37
AD8210 -2 to 65 500 100 20 +4.5 +5.5 1.5mA 10 20ppm/C -40 to +125 SOIC $1.81
AD8211 -2 to 65 500 120 20 - - 2mA 12 20ppm/C -40 to +125 SOT $0.81
AD8212 7 to 65 1000 100 1,000 +7 +65 720µA 10 - -40 to +125 MSOP $0.93
AD8213 -2 to 65 500 100 20 +4.5 +5.5 2.5mA 12 10ppm/C -40 to +125 MSOP $2.01
AD8214 5 to 65 - 80 100 +5 +65 1.2mA 15 - -40 to +125 MSOP $0.76
AD8215 -2 to 65 450 100 20 +4.5 +5.5 2.2mA 6 15ppm/C -40