LTC2355IMSE-12#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC2355IMSE-12#TRPBF is a 12-bit, 3.5Msps serial analog-to-digital converter (ADC) from Analog Devices Inc., packaged in a 10-lead MSOP. It operates on a single 3.3V supply with a typical active current of 5.5mA and power dissipation of 18mW. The device features differential inputs with a 0V to 2.5V unipolar range and an internal 2.5V bandgap reference. Key performance metrics include a SINAD of 71.1dB at 100kHz input and 86dB SFDR. It supports Sleep (13µW) and Nap (4mW) shutdown modes via the CONV pin.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 3.5Msps sampling rate
• Differential inputs with 80dB common mode rejection
• Internal 2.5V reference with overdrive capability
• Sleep (13µW) and Nap (4mW) power-down modes

Analog To Digital Converters (ADC) Applications

• Data acquisition systems
• Multiphase motor control
• Uninterrupted power supplies
• RFID applications

Analog To Digital Converters (ADC) Procurement Notes

Verify the #TRPBF suffix indicates tape and reel packaging for automated assembly. Confirm the IMSE suffix corresponds to the industrial temperature range of –40°C to 85°C. Ensure the 10-lead MSOP package footprint matches the PCB design requirements, specifically noting the exposed pad connection.

Analog To Digital Converters (ADC) Selection Notes

Select this component when high-speed conversion is required alongside low power consumption in portable devices. The 12-bit resolution provides a balance between data throughput and system complexity. Verify that the 0V to 2.5V input range aligns with the signal source; if higher voltage swings are needed, external scaling or an external reference overdriving the VREF pin must be implemented.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2355 family, which also includes the 14-bit LTC2355-14 variant. Both share identical pinouts, timing characteristics, and power management features. The primary distinction lies in the resolution and associated dynamic performance specifications such as SINAD and LSB size.

Analog To Digital Converters (ADC) Replacement Considerations

Public confirmed substitute part numbers: LTC2355IMSE-14#TRPBF (14-bit variant).

Analog To Digital Converters (ADC) FAQ

How is the Sleep mode activated?

Sleep mode is entered by applying four or more CONV pulses while the SCK pin is held in a fixed high or fixed low state.

What is the maximum clock frequency for full throughput?

A 63MHz clock allows achieving the full 3.5Msps sampling rate, provided two additional clock cycles are allowed for acquisition time between conversions.

Can the internal reference be overridden?

Yes, the VREF pin can be overdriven by an external reference voltage ranging from 2.55V to VDD to improve noise performance or adjust input span.