LTC1740CG#PBF

Analog To Digital Converters (ADC) Overview

The LTC1740CG#PBF is a 14-bit, 6Msps sampling analog-to-digital converter (ADC) housed in a 36-lead SSOP package. It operates from a single 5V supply or dual ±5V supplies with a typical power dissipation of 245mW. The device features true differential inputs with 75dB CMRR and an internal programmable reference supporting input ranges of ±2.5V or ±1.25V. Key performance metrics include 79dB S/(N+D) and 91dB SFDR at a 2.5MHz input frequency. The part is rated for commercial temperatures ranging from 0°C to 70°C.

Analog To Digital Converters (ADC) Feature Summary

• 14-bit resolution with no missing codes over temperature
• 6Msps sample rate with 80MHz full-power bandwidth
• True differential inputs with 75dB common mode rejection ratio
• Internal reference supports ±2.5V and ±1.25V bipolar input ranges

Analog To Digital Converters (ADC) Applications

• Telecommunications systems
• Multiplexed data acquisition systems
• High-speed data acquisition applications
• Spectral analysis equipment
• Imaging systems

Analog To Digital Converters (ADC) Procurement Notes

Verify the 'C' suffix indicates the commercial temperature range (0°C to 70°C). Confirm the '#PBF' designation ensures compliance with RoHS standards and absence of lead. Check current availability status as component lifecycle changes may affect stock levels.

Analog To Digital Converters (ADC) Selection Notes

Select this model when a 14-bit resolution and 6Msps throughput are required within a low-power budget of 245mW. Ensure the application can accommodate the 36-pin SSOP footprint. Verify that the system clock jitter remains below specifications to maintain the stated 79dB SNR performance.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1740 family of high-speed ADCs. The CG variant specifically denotes the commercial temperature grade. It serves as a complete solution integrating a sample-and-hold circuit, pipelined ADC core, and precision reference into a single compact package.

Analog To Digital Converters (ADC) Replacement Considerations

Consult manufacturer documentation for direct pin-compatible substitutes. Evaluate alternative ADCs based on matching resolution, sampling speed, and interface requirements if the LTC1740CG#PBF is unavailable.

Analog To Digital Converters (ADC) FAQ

What is the digital output format?

The LTC1740 provides a parallel 14-bit two's complement binary output.

How is the analog input range configured?

The input range is set by the VREF pin voltage, which can be internally generated as 4.5V (±2.5V range) or 2.25V (±1.25V range), or driven externally via the SENSE pin.

What is the data latency?

The conversion result appears at the outputs after three clock cycles following the rising edge of the CLK signal.