LTC1406IGN#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1406IGN#TRPBF is a low-power, 8-bit, 20Msps sampling A/D converter housed in a 24-lead narrow SSOP package. It operates from a single 5V supply with typical power dissipation of 150mW at full throughput. The device features a 250MHz internal sample-and-hold amplifier and true differential analog inputs (AIN+, AIN–) that reject common-mode noise. Key electrical specifications include ±1LSB maximum DNL and INL over temperature, a full-scale input span of ±1V, and an output data latency of five clock cycles. The part supports interface to 3V digital systems via separate OVDD and OGND pins.

Analog To Digital Converters (ADC) Feature Summary

• 20Msps sampling rate with 8-bit resolution and pipeline architecture
• Low power consumption: 150mW active, 1μA shutdown current
• True differential inputs with 60dB common mode rejection ratio
• ±1LSB max DNL and INL; 250MHz input bandwidth

Analog To Digital Converters (ADC) Applications

• Telecommunications and wireless communications systems
• Digital cellular telephones
• Video digitizing and digital television
• High-speed data acquisition
• CCDs and image scanners

Analog To Digital Converters (ADC) Procurement Notes

Verify the ordering suffix #TRPBF indicates tape and reel packaging for the IGN industrial temperature grade variant. Confirm the component status is Active. Ensure compatibility with the required 24-lead narrow SSOP footprint during procurement planning.

Analog To Digital Converters (ADC) Selection Notes

Select this component for applications requiring high dynamic range at moderate speeds. The 250MHz bandwidth allows undersampling of signals well beyond the Nyquist frequency. Ensure the driving circuit has sufficient settling time (<25ns) to handle the sampling capacitor charge spikes at 20Msps throughput.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC1406 family of sampling ADCs. The IGN suffix denotes the Industrial temperature range (-40°C to 85°C), distinguishing it from the CGN Commercial grade variant. The #TRPBF suffix specifies the Tape & Reel packaging format with lead-free finish.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC1406CGN#TRPBF is a direct functional substitute within the same package and pinout, differing only in the commercial temperature range specification (0°C to 70°C).

Analog To Digital Converters (ADC) FAQ

How does the LTC1406 handle single-ended inputs?

For single-ended operation, tie the AIN– pin to a fixed DC voltage (such as VREF) and drive the AIN+ pin with the signal. The input span remains ±1V relative to the common mode.

What is the data latency of the LTC1406?

The pipelined architecture introduces a latency of five clock cycles between the falling edge of the CLK input (which starts conversion) and the availability of valid data on the output pins.

Can the LTC1406 interface directly with 3V logic?

Yes. The digital inputs accept 3V or 5V logic levels. The outputs can be powered by a separate OVDD supply as low as 2.7V to match 3V logic requirements.