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MAX1270 - Serial 12-Bit ADCs

Description

The MAX1270/MAX1271 are multirange, 12-bit dataacquisition systems (DAS) that require only a single +5V supply for operation, yet accept signals at their analog inputs that can span above the power-supply rail and below ground.

Features

  • include a 5MHz bandwidth track/hold, softwareselectab.

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Full PDF Text Transcription

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19-4782; Rev 2; 9/04 EVAALVUAAILTAIOBNLEKIT Multirange, +5V, 8-Channel, Serial 12-Bit ADCs MAX1270/MAX1271 General Description The MAX1270/MAX1271 are multirange, 12-bit dataacquisition systems (DAS) that require only a single +5V supply for operation, yet accept signals at their analog inputs that can span above the power-supply rail and below ground. These systems provide eight analog input channels that are independently software programmable for a variety of ranges: ±10V, ±5V, 0 to +10V, 0 to +5V for the MAX1270; ±VREF, ±VREF/2, 0 to VREF, 0 to VREF/2 for the MAX1271. This range switching increases the effective dynamic range to 14 bits and provides the flexibility to interface 4–20mA, ±12V, and ±15V powered sensors directly to a single +5V system.
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