LTC2351-14
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LTC2351-14

6 Channel, 14-Bit, 1.5Msps Simultaneous Sampling ADC with Shutdown

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Part Details
Part Models 7
1ku List Price Starting From $12.21
Features
  • 1.5Msps ADC with Six Simultaneously Sampled Differential Inputs
  • 250ksps Throughput per Channel
  • 75dB SINAD
  • Low Power Dissipation: 16.5mW
  • 3V Single Supply Operation
  • 2.5V Internal Bandgap Reference, Can be Overdriven with External Reference
  • 3-Wire SPI-Compatible Serial Interface
  • Internal Conversion Triggered by CONV
  • Sleep (12µW) Shutdown Mode
  • NAP (4.5mW) Shutdown Mode
  • 0V to 2.5V Unipolar, or ±1.25V Bipolar Differential Input Range
  • 83dB Common Mode Rejection
  • Tiny 32-Pin (5mm × 5mm) QFN Package
Additional Details
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The LTC2351-14 is a 14-bit, 1.5Msps ADC with six simultaneously sampled differential inputs. The device draws only 5.5mA from a single 3V supply, and comes in a tiny 32-pin (5mm × 5mm) QFN package. A sleep shutdown mode further reduces power consumption to 12µW. The combination of low power and tiny package makes the LTC2351-14 suitable for portable applications.

The LTC2351-14 contains six separate differential inputs that are sampled simultaneously on the rising edge of the CONV signal. These six sampled inputs are then converted at a rate of 250ksps per channel.

The 83dB common mode rejection allows users to eliminate ground loops and common mode noise by measuring signals differentially from the source.

The device converts 0V to 2.5V unipolar inputs differentially, or ±1.25V bipolar inputs also differentially, depending on the state of the BIP pin. Any analog input may swing rail-to-rail as long as the differential input range is maintained.

The conversion sequence can be abbreviated to convert fewer than six channels, depending on the logic state of the SEL2, SEL1 and SEL0 inputs.

The serial interface sends out the six conversion results in 96 clocks for compatibility with standard serial interfaces.


Bits
LTC2351-12 12
LTC2351-14 14

Applications

  • Multiphase Power Measurement
  • Multiphase Motor Control
  • Data Acquisition Systems
  • Uninterruptable Power Supplies
Part Models 7
1ku List Price Starting From $12.21

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Documentation

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Jan 20, 2022

- 21_0269

Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

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Addition of Alternate Assembly Site ASE Taiwan for Select LFCSP Products

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Software & Part Ecosystem

Software & Part Ecosystem

 
LinearLab Tools
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A collection of Matlab and Python programs that provide direct access to Linear Technology’s data converter evaluation boards.

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Evaluation Kit

Evaluation Kits 1

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DC1278A

LTC2351-14: 14-Bit, 6-Channel 1.5Msps Simultaneous Sampling SAR ADC (requires DC890)

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