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LINEAR TECHNOLOGY  LTC2421CMS#PBF  Analogue to Digital Converter, 20 bit, 7.5 SPS, Single, 2.7 V, 5.5 V, MSOP

LINEAR TECHNOLOGY LTC2421CMS#PBF
Technical Data Sheet (372.18KB) EN See all Technical Docs

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Product Overview

The LTC2421CMS#PBF is a 1-channel micropower 20-bit Analog-to-digital Converter (ADC) with an integrated oscillator. This ultra-small device uses delta-sigma technology and a new digital filter architecture that settles in a single cycle. This eliminates the latency found in conventional sigma-delta converter and simplifies multiplexed applications. Through a single pin, the ADC can be configured for better than 110dB rejection at 50/60Hz±2% or can be driven by an external oscillator for user defined rejection frequency in the range 1 to 120Hz. The internal oscillator requires no external frequency setting components. This converter accepts an external reference voltage from 0.1V to VCC. With an extended input conversion range of -12.5% to 112.5%VREF, the ADC smoothly resolves the offset and over-range problems of preceding sensors or signal conditioning circuits. It communicates through a 2/3-wire digital interface that is compatible with SPI and MICROWIRE™ protocols.
  • Low supply current and auto shutdown
  • Automatic channel selection (Ping-Pong)
  • No latency - digital filter settles in a single conversion cycle
  • Zero scale and full scale set for reference and ground sensing
  • Internal oscillator - no external components required
  • Pin compatible with LTC2401/LTC2402

Product Information

Resolution (Bits):
20bit
Sampling Rate:
7.5SPS
Supply Voltage Type:
Single
Supply Voltage Min:
2.7V
Supply Voltage Max:
5.5V
ADC / DAC Case Style:
MSOP
No. of Pins:
10Pins
Input Channel Type:
Single Ended
Data Interface:
Serial
Operating Temperature Min:
0°C
Operating Temperature Max:
70°C
Packaging:
Each
Product Range:
Single 20-Bit Sigma-Delta ADCs
Automotive Qualification Standard:
-
MSL:
MSL 1 - Unlimited
SVHC:
No SVHC (17-Dec-2015)

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Applications

  • Consumer Electronics;
  • Test & Measurement;
  • Automation & Process Control

Legislation and Environmental

Moisture Sensitivity Level:
MSL 1 - Unlimited
Country of Origin:
United States

Country in which last significant manufacturing process was carried out

RoHS Compliant:
Yes
Tariff No:
85423190
Weight (kg):
.0001

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