LTC2151IUJ-12#TRPBF

Analog To Digital Converters (ADC) Overview

The LTC2151IUJ-12#TRPBF is a single-channel, 12-bit analog-to-digital converter (ADC) operating at a maximum sampling rate of 210 Msps. It features a 1.25 GHz full-power bandwidth sample-and-hold circuit and accepts a 1.5 V peak-to-peak differential input signal. The device utilizes double-data rate (DDR) LVDS digital outputs with a pipeline latency of six clock cycles. Powered by a single 1.8 V supply, it dissipates 333 mW at full speed. Key performance metrics include a typical Signal-to-Noise Ratio (SNR) of 68.5 dB and a Spurious Free Dynamic Range (SFDR) of 90 dB. The component is housed in a 40-lead, 6 mm × 6 mm QFN package.

Analog To Digital Converters (ADC) Feature Summary

• 12-bit resolution with 210 Msps sampling rate and 1.25 GHz full-power bandwidth
• Low power consumption of 333 mW at full speed with optional Sleep and Nap modes
• DDR LVDS digital outputs with configurable output current and internal termination
• Integrated 1.25V reference and common mode bias generator

Analog To Digital Converters (ADC) Applications

• Cellular base stations
• Software defined radios
• Medical imaging systems
• High definition video processing
• Testing and measurement instruments

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific suffix #TRPBF indicates tape and reel packaging when sourcing. Confirm the 'I' designation corresponds to the industrial temperature range of –40°C to 85°C. Ensure the source document matches the manufacturer's official datasheet for the LTC2151-12 family to validate pin compatibility and electrical specifications.

Analog To Digital Converters (ADC) Selection Notes

Select this model over the LTC2152-12 if a 210 Msps sampling rate is sufficient, as it offers lower power dissipation (333 mW vs 347 mW). Choose the 'I' grade version for operations requiring temperatures below 0°C. Ensure the application supports DDR LVDS signaling or includes appropriate level shifting if interfacing with non-LVDS logic.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC215x-12 family, which also includes the higher-speed LTC2152-12 (250 Msps) and the lower-speed LTC2150-12 (170 Msps). All variants share identical pinouts, package types, and functional blocks, differing primarily in sampling frequency and associated power consumption profiles.

Analog To Digital Converters (ADC) Replacement Considerations

LTC2152IUJ-12#TRPBF: Higher speed (250 Msps), slightly higher power (347 mW). Pin-compatible replacement.

Analog To Digital Converters (ADC) FAQ

How is the analog input range configured?

The input range is set via the SENSE pin. Connecting SENSE to VDD selects the internal reference and a ±0.75V range. Applying an external reference between 1.2V and 1.3V to SENSE sets the range to ±0.6 • VSENSE.

What is the function of the CLKOUT pins?

The CLKOUT+ and CLKOUT– pins provide a data output clock signal. Digital outputs transition relative to these edges, and their phase can be adjusted via the serial interface registers.

Can the device operate with a single-ended encode input?

While the encode inputs (ENC+, ENC–) are designed for differential driving for optimal performance, the datasheet notes they can accept PECL, LVDS, TTL, or CMOS inputs, implying flexibility in drive schemes.