LTC2483IDD#PBF

Analog To Digital Converters (ADC) Overview

The LTC2483IDD#PBF is a 16-bit delta-sigma analog-to-digital converter featuring Easy Drive technology for zero differential input current. It operates on a single supply from 2.7V to 5.5V and includes an internal oscillator. The device provides rail-to-rail input range (GND to VCC) with 600nVRMS noise independent of the reference voltage. It utilizes a 2-wire I2C interface, supports simultaneous 50Hz/60Hz rejection, and offers 2ppm INL with no missing codes. The component is housed in a 10-lead DFN package and functions within a temperature range of –40°C to 85°C.

Analog To Digital Converters (ADC) Feature Summary

• Easy Drive Technology enables direct digitization of high impedance sensors with rail-to-rail inputs and zero differential input current.
• Low Noise Performance: 600nVRMS output noise independent of VREF, allowing direct digitization of low-level signals.
• High Accuracy Specifications: 2ppm (0.25 LSB) INL, 1ppm offset error, and 15ppm full-scale error with continuous auto-calibration.
• Integrated Features: Internal oscillator, 2-wire I2C interface, and six selectable chip addresses.

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 ordering suffix #PBF indicates lead-free finish and tube packaging for this part number. Confirm the IDD suffix corresponds to the industrial temperature grade of –40°C to 85°C. Ensure compatibility with the 10-lead DFN footprint during procurement planning.

Analog To Digital Converters (ADC) Selection Notes

Select the LTC2483IDD#PBF when operation below 0°C is required, as the CDD variant is limited to 0°C to 70°C. This model supports I2C fast mode up to 400kHz. Verify that the external source impedance requirements align with the Easy Drive cancellation capabilities for the specific sensor application.

Analog To Digital Converters (ADC) Part Context

This component belongs to the LTC2483 family of 16-bit ADCs. The IDD#PBF designation specifically identifies the industrial temperature range version packaged in tubes. Other variants include the CDD for commercial temperatures and TRPBF/TR for tape and reel packaging options.

Analog To Digital Converters (ADC) Replacement Considerations

The LTC2483CDD#PBF serves as a functional substitute if the operating environment remains above 0°C. Both parts share identical electrical characteristics and pinouts, differing only in the specified operating temperature range.

Analog To Digital Converters (ADC) FAQ

How does the Easy Drive technology handle input current?

It uses a patented sampling scheme to automatically cancel differential input current, eliminating dynamic errors and allowing direct connection to high-impedance sources without external buffering.

What is the common mode input voltage range?

The input common mode range extends from GND to VCC, independent of the reference voltage level.

Does the device require an external clock?

No, the LTC2483 includes an on-chip trimmed oscillator. An external clock can be applied to the CA0/F0 pin if needed, but it is not required for standard operation.