LTC1609ISW#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1609ISW#TRPBF is a 16-bit, 200ksps serial sampling Analog-to-Digital Converter (ADC) from Analog Devices Inc. It operates on a single 5V supply and dissipates 65mW typically. The device integrates a sample-and-hold circuit, precision reference, switched-capacitor SAR architecture, and an internal clock. It supports multiple input ranges: unipolar (0V to 10V, 0V to 5V, 0V to 4V) and bipolar (-10V, -5V, -3.3V). Key electrical specifications include a typical Signal-to-Noise Ratio (SNR) of 87dB, guaranteed no missing codes over temperature, and ±2LSB Integral Nonlinearity (INL).

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 200ksps sampling rate and 87dB typical SNR.
• Multiple analog input ranges: Unipolar (0V–10V, 0V–5V, 0V–4V) and Bipolar (-10V, -5V, -3.3V).
• Integrated 2.5V precision reference with external reference capability.
• Flexible serial interface supporting internal or external shift clocks.

Analog To Digital Converters (ADC) Applications

• Industrial process control systems.
• Multiplexed data acquisition systems.
• High-speed data acquisition for personal computers.
• Digital signal processing applications.

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging. Confirm the ISW variant corresponds to the industrial temperature range (-40°C to 85°C) and 20-pin SO package. Ensure compatibility with single 5V supply requirements for both analog and digital domains.

Analog To Digital Converters (ADC) Selection Notes

Select this component when a 16-bit ADC with integrated reference and clock is required for single-supply 5V operation. Choose based on specific input range needs (unipolar vs. bipolar) and interface preferences (internal vs. external clocking). Consider the 20-pin SO package for board space constraints compared to the 28-lead SSOP option.

Analog To Digital Converters (ADC) Part Context

The LTC1609 series includes variants like the LTC1609CG (commercial) and LTC1609IG (industrial). The ISW designation specifies the industrial temperature grade and 20-lead Small Outline package. It serves as an improved second source for legacy parts such as the ADS7809 and AD977A.

Analog To Digital Converters (ADC) Replacement Considerations

Publicly confirmed direct substitutes listed in the datasheet are the ADS7809 and AD977A. Verify pinout and electrical parameter compatibility before substitution.