LTC1098

PRODUCTION

Micropower Sampling 8-Bit Serial I/O A/D Converters

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Overview

  • 80μA Maximum Supply Current
  • 1nA Typical Supply Current in Shutdown
  • 5V Operation (LTC1096/LTC1098)
  • 3V Operation (LTC1096L/LTC1098L)(2.65V Min)
  • Sample-and-Hold
  • 16μs Conversion Time
  • 33kHz Sample Rate
  • ±0.5LSB Total Unadjusted Error Over Temp
  • Direct 3-Wire Interface to Most MPU Serial Ports and All MPU Parallel I/O Ports
  • 8-Pin SO Plastic Package

The LTC1096/LTC1096L/LTC1098/LTC1098L are micropower, 8-bit A/D converters that draw only 80μA of supply current when converting. They automatically power down to 1nA typical supply current whenever they are not performing conversions. They are packaged in 8-pin SO packages and have both 3V (L) and 5V versions. These 8-bit, switched-capacitor, successive approximation ADCs include sample-and-hold. The LTC1096/LTC1096L have a single differential analog input. The LTC1098/LTC1098L offer a software selectable 2-channel MUX.

On-chip serial ports allow efficient data transfer to a wide range of microprocessors and microcontrollers over three wires. This, coupled with micropower consumption, makes remote location possible and facilitates transmitting data through isolation barriers.

These circuits can be used in ratiometric applications or with an external reference. The high impedance analog inputs and the ability to operate with reduced spans (below 1V full scale) allow direct connection to sensors and transducers in many applications, eliminating the need for gain stages.

Applications

  • Battery-Operated Systems
  • Remote Data Acquisition
  • Battery Monitoring
  • Battery Gas Gauges
  • Temperature Measurement
  • Isolated Data Acquisition
LTC1098
Micropower Sampling 8-Bit Serial I/O A/D Converters
10μW, S8 Package, 8-Bit A/D Supply Current vs Sample Rate Samples at 200Hz and Runs Off a 5V Battery Supply Current vs Sample Rate Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

Application Note 2

Design Note 2

Data Sheet

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Interface Transceivers & Isolators 1
LTM2883
PRODUCTION SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power
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