LTC1407CMSE#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC1407CMSE#TRPBF is a 12-bit, 3Msps simultaneous sampling analog-to-digital converter (ADC) in a 10-lead MSOP package. It features two differential inputs sampled at 1.5Msps per channel on the rising edge of the CONV signal. Operating from a single 3V supply, it draws 4.7mA during active conversion and dissipates 14mW. The device includes an internal 2.5V bandgap reference, a 3-wire serial interface, and Sleep/Nap shutdown modes reducing power to 10μW/3mW respectively. Key performance metrics include 80dB CMRR at 100kHz, 50MHz full power bandwidth, and ±0.25 LSB INL.

Analog To Digital Converters (ADC) Feature Summary

• Simultaneous Sampling: Two independent differential channels sampled concurrently at 1.5Msps each for a total throughput of 3Msps.
• Low Power Operation: Consumes 14mW at 3V; reduces to 10μW in Sleep mode and 3mW in Nap mode via SCK/CONV control.
• Differential Input Architecture: Supports 0V to 2.5V unipolar differential input range with 80dB common mode rejection ratio (CMRR).
• Integrated Reference: Factory-trimmed internal 2.5V bandgap reference with provision for external overdrive up to VDD.

Analog To Digital Converters (ADC) Applications

• Telecommunications systems requiring dual-channel signal processing.
• Multiphase motor control applications needing synchronized current/voltage sensing.
• I and Q demodulation circuits for RF signal processing.
• Data acquisition systems with portable or battery-powered constraints.

Analog To Digital Converters (ADC) Procurement Notes

Verify the #TRPBF suffix indicates tape and reel packaging rather than tube. Confirm the 'C' grade designation corresponds to the 0°C to 70°C commercial temperature range. Ensure the source document explicitly lists this part number as available from Analog Devices or authorized distributors, as availability status may vary by region.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC1407CMSE#TRPBF when 12-bit resolution and 3Msps aggregate throughput are required in a compact MSOP footprint. Choose this model over the LTC1407A if 12-bit accuracy suffices, as the A variant offers 14-bit resolution. Ensure the application can accommodate the 0V to 2.5V input span and utilizes a single 3V supply rail.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC1407 family of high-speed, low-power ADCs. The 'CMSE' suffix denotes the Commercial temperature grade (-40°C to 85°C for I/H grades, but C is typically 0-70°C per datasheet table) and MSOP-10 package. The '#TRPBF' suffix specifies lead-free finish and tape-and-reel packaging. It serves as a dual-channel alternative to single-channel counterparts like the LTC1403.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC1407IMSE#TRPBF offers the same electrical specifications but extends the operating temperature range to -40°C to 85°C. For higher resolution requirements, the LTC1407A series provides 14-bit performance. No direct cross-brand replacements are documented in the provided datasheet.

Analog To Digital Converters (ADC) FAQ

How does the Sleep mode function?

Sleep mode reduces power consumption to 10μW. It is activated by applying four or more pulses to the SCK pin while the CONV pin is held fixed high or low.

What is the maximum differential input voltage?

The differential input range is 0V to 2.5V. The absolute voltage at any input pin must remain between ground and VDD (typically 3V).

Can the internal reference be overridden?

Yes, the VREF pin can be overdriven by an external reference voltage between 2.55V and VDD to improve performance or match specific system requirements.