Overview
The LTC2391IUK-16 is a high-performance, 16-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This ADC operates from a single 5V supply and supports a large ±4.096V fully differential input range, making it ideal for applications requiring maximum dynamic range. It features low noise, high speed, and excellent dynamic performance, with a sampling rate of 250ksps and no cycle latency in both parallel and serial interface modes.
The device includes a precision internal reference with a guaranteed 0.5% initial accuracy and a ±20ppm/°C temperature coefficient. It is designed for low power consumption, dissipating only 95mW at 250ksps, and includes nap and sleep power-down modes to further reduce power during inactive periods.
Key Specifications
| Specification | Value |
|---|---|
| Number of Bits | 16 |
| Sampling Rate | 250ksps |
| Input Type | Differential |
| Input Range | ±4.096V |
| Supply Voltage | 5V (Analog and Digital) |
| Power Consumption | 95mW at 250ksps |
| Package Type | 48-QFN (7x7mm x 0.75mm w/ EP) |
| Operating Temperature | -40°C to 85°C |
| Reference Type | Internal/External |
| Data Interface | SPI, Parallel |
| Signal-to-Noise Ratio (SNR) | 94dB (typ) |
| Integral Nonlinearity (INL) | ±2LSB max |
Key Features
- High-performance 16-bit SAR ADC with 94dB SNR (typ)
- Large ±4.096V fully differential input range
- Fast 250ksps throughput with no cycle latency in parallel and serial interface modes
- Precision internal reference with 0.5% initial accuracy and ±20ppm/°C temperature coefficient
- Low power consumption: 95mW at 250ksps, with nap and sleep power-down modes
- Internal oscillator for setting conversion time
- SPI and parallel data interface for compatibility with various microcontrollers and processors
- Wide operating temperature range: -40°C to 85°C
- Lead-free and RoHS compliant
Applications
- Industrial automation and control
- Instrumentation and measurement
- Data acquisition systems
- Test and measurement equipment
- Automotive solutions, including electronic cockpit, BMS, motor/electric drive sensors, and autonomous driving
- Aerospace and defense
- Motor and power control
- Healthcare
Q & A
- What is the resolution of the LTC2391IUK-16 ADC?
The LTC2391IUK-16 is a 16-bit analog-to-digital converter.
- What is the sampling rate of the LTC2391IUK-16?
The sampling rate of the LTC2391IUK-16 is 250ksps.
- What type of input does the LTC2391IUK-16 support?
The LTC2391IUK-16 supports differential inputs.
- What is the input range of the LTC2391IUK-16?
The input range of the LTC2391IUK-16 is ±4.096V.
- What are the power-down modes available for the LTC2391IUK-16?
The LTC2391IUK-16 has nap and sleep power-down modes to reduce power consumption during inactive periods.
- What is the typical signal-to-noise ratio (SNR) of the LTC2391IUK-16?
The typical SNR of the LTC2391IUK-16 is 94dB.
- What is the package type of the LTC2391IUK-16?
The LTC2391IUK-16 is available in a 48-QFN (7x7mm x 0.75mm w/ EP) package.
- What are the operating temperature ranges for the LTC2391IUK-16?
The operating temperature range for the LTC2391IUK-16 is -40°C to 85°C.
- Does the LTC2391IUK-16 support both internal and external references?
Yes, the LTC2391IUK-16 supports both internal and external reference options.
- What data interfaces are available for the LTC2391IUK-16?
The LTC2391IUK-16 supports both SPI and parallel data interfaces.
