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AM457

Features: • High input sensitivity• Wide differential input voltage range (±5...±100mV FS)• Low offset• Low offset drift• Low input noise• High CMRR: > 120dB• Wide operating temperature range: -40... +125°C• Adjustable output voltage• Rail-t...

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SeekIC No. : 004283648 Detail

AM457: Features: • High input sensitivity• Wide differential input voltage range (±5...±100mV FS)• Low offset• Low offset drift• Low input noise• High CMRR: > 120dB&#...

AM457 Data Sheet

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Part Number:
AM457
Supply Ability:
5000

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  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

• High input sensitivity
• Wide differential input voltage range (±5...±100mV FS)
• Low offset
• Low offset drift
• Low input noise
• High CMRR: > 120dB
• Wide operating temperature range: -40... +125°C
• Adjustable output voltage
• Rail-to-rail output stage: VOUT = 0.2V ... Vcc 0.2V
• Sink/source output
• Single ratiometric supply: VCC = 5V
• Integrated current source: 2mA
• Integrated diagnostic unit
• Separate function groups
• Integrated EMV protective circuitry
• Short-circuit-proofing
• Small-scale design


Application

• Precision amplifiers for bridge circuits with low sensitivity:
   for ceramic measurement cells
   for DMS sensing elements
   for GMR sensing elements
• Sensor amplification with functional control


Description

AM457 is a high-precision integrated amplifier which has been developed to condition signals from small differential input voltages within a range of a few millivolts (±5 to ±100mV FS). The chief component of the IC is a highly accurate, low-noise amplifier circuit (AMP). An additional integrated operational amplifier (OP) can be used to supply a sensing lement with current or record temperature for sensor ridges powered by voltage, for example. The entire
system (sensing element plus amplifier) is monitored y the integrated diagnostic unit which logs any ensing element errors or defects, system ndervoltage, AMP overloads and excessive emperature. The various function groups are not
mutually dependent on one another; the AMP can be perated independently of the OP, for example. The unctionality of both component groups (AMP and P) is autonomous with regard to the diagnostic unit.

AM457 is a combination of high-impedance precision mplifier, additional OP and extensive diagnostic unit, nabling a self-monitoring sensor system to be ssembled using very few components. 




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