LTC1605IG#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1605IG#TRPBF is a 16-bit, 100ksps sampling analog-to-digital converter (ADC) from Analog Devices. It operates on a single 5V supply with typical power dissipation of 55mW. The device features a ±10V bipolar input range and includes an internal sample-and-hold circuit, precision reference, switched-capacitor SAR architecture, and trimmed internal clock. Key DC specifications include ±2.0LSB maximum integral nonlinearity (INL) and guaranteed no missing codes over the industrial temperature range (-40°C to +85°C). It offers a microprocessor-compatible 16-bit parallel output port with Convert Start and BUSY signals for simplified interfacing.

Analog To Digital Converters (ADC) Feature Summary

• 16-bit resolution with 100ksps sampling rate
• Single 5V supply operation with 55mW typical power dissipation
• ±10V bipolar analog input range with ±25V overvoltage protection
• Internal 2.5V reference with external reference capability
• Guaranteed no missing codes and ±2.0LSB max INL over temperature

Analog To Digital Converters (ADC) Applications

• Industrial process control
• Multiplexed data acquisition systems
• High-speed data acquisition for PCs
• Digital signal processing

Analog To Digital Converters (ADC) Procurement Notes

Verify the #TRPBF suffix indicates tape and reel packaging and lead-free finish. Confirm the IG suffix corresponds to the -40°C to +85°C industrial temperature range. Ensure the SSOP-28 package matches the design requirements. Cross-reference the manufacturer part number with official Analog Devices documentation to confirm current production status and availability.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high DC accuracy and wide dynamic range without complex calibration. The internal reference simplifies design but can be overridden for higher precision. Consider the 20kΩ input impedance and drive requirements. The parallel interface requires sufficient GPIO lines or shift registers. Evaluate thermal performance given the 55mW dissipation in the SSOP package.

Analog To Digital Converters (ADC) Part Context

The LTC1605 series includes variants with different temperature ranges (C for commercial, I for industrial) and packages (SSOP, SO Wide, PDIP). The IG suffix specifically denotes the industrial grade version in the SSOP package. This model serves as an improved second source for legacy parts like the ADS7805 and AD976.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitutes include the LTC1605AIG#TRPBF for enhanced linearity specifications. Other package options within the same family are LTC1605AISW#TRPBF (SO Wide) and LTC1605IN#TRPBF (PDIP). Verify pin compatibility and electrical parameter differences before substitution.

Analog To Digital Converters (ADC) FAQ

What is the maximum integral nonlinearity (INL) specification?

The maximum INL is ±2.0 LSB over the full operating temperature range.

Can the internal reference be bypassed?

Yes, the internal 2.5V reference can be overdriven by an external reference voltage applied to the REF pin for improved accuracy.

What is the analog input voltage range?

The standard input range is ±10V, with overvoltage protection up to ±25V.