Overview
The LTC2439-1IGN#PBF is a high-performance, 16-channel (8-differential) micropower 16-bit delta-sigma analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is designed for precision measurement applications, offering low noise, high accuracy, and flexible configuration options. It operates from a single supply voltage ranging from 2.7V to 5.5V and includes an integrated oscillator, eliminating the need for external frequency setting components. The LTC2439-1IGN#PBF is ideal for various applications requiring high-resolution and low-noise conversion, such as industrial control, medical devices, and remote sensing.
Key Specifications
| Parameter | Value |
|---|---|
| Number of Channels | 16 (8 differential or 16 single-ended) |
| Resolution | 16-bit |
| Supply Voltage | 2.7V to 5.5V |
| Input Range | –0.5V REF to 0.5V REF (bipolar) |
| Reference Voltage | 0.1V to VCC |
| Noise | 1µV RMS |
| Integral Non-Linearity (INL) | 0.12LSB |
| Differential Mode Rejection | Better than 87dB at 50Hz and 60Hz ±2% |
| Operating Temperature | 0°C to 70°C (LTC2439-1C), -40°C to 85°C (LTC2439-1I) |
| Package | 28-Lead SSOP (Narrow 0.15 Inch) |
| Digital Interface | 4-wire, compatible with SPI and MICROWIRE protocols |
Key Features
- Low supply current: 200µA (active), 4µA (autosleep)
- Rail-to-rail differential input and reference
- No missing codes, 16-bit resolution
- Very low transition noise: less than 0.02LSB
- Guaranteed modulator stability and lock-up immunity for any input and reference conditions
- Internal oscillator with no external components required
- Flexible ratiometric and remote sensing measurement capabilities
- Pin compatible with the 24-bit LTC2418
Applications
The LTC2439-1IGN#PBF is suitable for a variety of applications that require high precision and low noise, including:
- Industrial control systems
- Medical devices and diagnostic equipment
- Remote sensing and data acquisition systems
- Automotive and aerospace applications
- High-accuracy measurement instruments
Q & A
- What is the resolution of the LTC2439-1IGN#PBF? The resolution is 16 bits.
- What is the operating supply voltage range of the LTC2439-1IGN#PBF? The operating supply voltage range is from 2.7V to 5.5V.
- How many channels does the LTC2439-1IGN#PBF support? It supports 16 channels, which can be configured as either 8 differential channels or 16 single-ended channels.
- What is the noise performance of the LTC2439-1IGN#PBF? The device has a noise performance of 1µV RMS.
- Does the LTC2439-1IGN#PBF have an internal oscillator? Yes, it includes an integrated oscillator that requires no external frequency setting components.
- What is the differential mode rejection of the LTC2439-1IGN#PBF? The differential mode rejection is better than 87dB at 50Hz and 60Hz ±2%.
- What digital interface does the LTC2439-1IGN#PBF use? It uses a 4-wire digital interface compatible with SPI and MICROWIRE protocols.
- What are the operating temperature ranges for the LTC2439-1IGN#PBF? The operating temperature ranges are 0°C to 70°C for the LTC2439-1C and -40°C to 85°C for the LTC2439-1I.
- What package options are available for the LTC2439-1IGN#PBF? It is available in a 28-Lead SSOP (Narrow 0.15 Inch) package.
- Is the LTC2439-1IGN#PBF suitable for remote sensing applications? Yes, it is suitable for remote sensing and ratiometric measurement applications due to its flexible reference voltage input.
