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AD7450ARZ-REEL Datasheet - ADI

Part Name
Description
MFG CO.
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GENERAL DESCRIPTION
The AD7450 is a 12-bit, high-speed, low power, successive approximation (SAR) analog-to-digital converter that features a fully differential analog input. It operates from a single 3 V or 5 V power supply and features throughput rates up to 833 kSPS or 1 MSPS, respectively.
This part contains a low noise, wide bandwidth, differential track and-hold amplifier (T/H) that can handle input frequencies in excess of 1 MHz with the –3 dB point typically being 20 MHz. The reference voltage for the AD7450 is applied externally to the VREF pin and can be varied from 100 mV to 3.5 V, depending on the power supply and what suits the application. The value of the reference voltage determines the common-mode voltage range of the part. With this truly differential input structure and variable reference input, the user can select a variety of input ranges and bias points.

FEATURES
  Fast Throughput Rate: 1 MSPS
  Specified for VDD of 3 V and 5 V
  Low Power at Max Throughput Rate:
     3.75 mW Max at 833 kSPS with 3 V Supplies
     9 mW Max at 1 MSPS with 5 V Supplies
  Fully Differential Analog Input
  Wide Input Bandwidth:
     70 dB SINAD at 300 kHz Input Frequency
  Flexible Power/Serial Clock Speed Management
  No Pipeline Delays
  High-Speed Serial Interface—SPITM/QSPI™ MICROWIRE™/DSP Compatible
  Power-Down Mode: 1 μA Max
  8-Lead μSOIC and SOIC Packages

APPLICATIONS
  Transducer Interface
  Battery-Powered Systems
  Data Acquisition Systems
  Portable Instrumentation
  Motor Control
  Communications

 

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