LTC2480CDD#PBF

Analog To Digital Converters (ADC) Overview

The LTC2480CDD#PBF is a 16-bit delta-sigma analog-to-digital converter featuring Easy Drive technology for automatic differential input current cancellation. It operates on a single supply of 2.7V to 5.5V with an internal oscillator running at 307.2kHz. The device provides programmable gain from 1 to 256, selectable line frequency rejection (50Hz, 60Hz, or simultaneous), and a GND to VCC common mode input range. Key electrical specifications include 2ppm INL, 1ppm offset error, and 15ppm full-scale error. It utilizes a 4-wire SPI interface and is housed in a 10-lead 3mm x 3mm DFN package.

Analog To Digital Converters (ADC) Feature Summary

• Easy Drive Technology eliminates dynamic input current errors, enabling direct digitization of high impedance sensors.
• Programmable Gain Amplifier offers 8 steps from 1 to 256.
• Selectable Line Frequency Rejection modes: 50Hz, 60Hz, or simultaneous 50Hz/60Hz.
• Internal Oscillator at 307.2kHz with optional external clock override via fO pin.

Analog To Digital Converters (ADC) Applications

• Direct Sensor Digitizer
• Weight Scales
• Strain Gauge Transducers
• Industrial Process Control

Analog To Digital Converters (ADC) Procurement Notes

Verify the specific temperature grade required for the application. The 'C' suffix denotes the commercial range (0°C to 70°C). Ensure the ordering suffix matches the desired packaging; '#PBF' indicates tube packaging, while '#TRPBF' indicates tape and reel. Confirm lead-free finish compliance if necessary.

Analog To Digital Converters (ADC) Selection Notes

Select this component when rail-to-rail input capability with high source impedance is required without external buffering. Choose the H-grade variant if operation up to 125°C is needed. Consider the 2x speed mode if higher data rates are acceptable, noting that gain is limited to 128 in this mode.

Analog To Digital Converters (ADC) Part Context

This part belongs to the LTC2480 family of No Latency Delta-Sigma ADCs. It shares the Easy Drive architecture with models like the LTC2481 and LTC2482 but differs in interface type and resolution. The CDD package identifies it as the commercial grade version in the tiny DFN form factor.

Analog To Digital Converters (ADC) Replacement Considerations

For wider temperature ranges, consider the LTC2480HDD#PBF (-40°C to 125°C). For I2C interface compatibility, the LTC2481 series may be suitable. Verify pinout and register compatibility before substituting with other ADCs in the same family.