Overview
The LTC2391HLX-16 is a high-performance, 16-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single 5V supply and is designed for applications requiring high speed and low noise. It features a large ±4.096V fully differential input range, making it ideal for high dynamic range applications. The LTC2391-16 achieves high accuracy with ±2LSB INL max and no missing codes at 16 bits, along with a signal-to-noise ratio (SNR) of 94dB typical at an input frequency of 20kHz.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Manufacturer | Analog Devices Inc. | |
| Description | IC ADC 16B SER/PAR 250K 48LQFP | |
| Number of Bits | 16 | |
| Sampling Rate (Per Second) | 250k | sps |
| Number of Inputs | 1 | |
| Input Type | Differential | |
| Data Interface | SPI, Parallel | |
| Configuration | S/H-ADC | |
| Architecture | SAR | |
| Reference Type | External, Internal | |
| Voltage - Supply, Analog | 5V | |
| Voltage - Supply, Digital | 5V | |
| Package / Case | 48-LQFP (7x7) | |
| Operating Temperature | -40°C ~ 125°C | |
| Power Dissipation | 95mW at 250ksps | |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
Key Features
- Low noise and high speed 16-bit SAR ADC with 94dB SNR typical at an input frequency of 20kHz.
- Operates from a single 5V supply with 1.8V to 5V I/O voltages.
- Large ±4.096V fully differential input range.
- Guaranteed ±2LSB INL max and no missing codes at 16 bits.
- Precision internal reference with 0.5% initial accuracy and ±20ppm/°C temperature coefficient.
- Fast 250ksps throughput with no cycle latency in both parallel and serial interface modes.
- Internal oscillator sets the conversion time, easing external timing considerations.
- Low power dissipation of 95mW at 250ksps with nap and sleep power-down modes.
- Available in 48-lead LQFP and QFN packages.
Applications
- Medical Imaging
- High Speed Data Acquisition
- Digital Signal Processing
- Industrial Process Control
- Instrumentation
- Automated Test Equipment (ATE)
Q & A
- What is the resolution of the LTC2391HLX-16 ADC?
The LTC2391HLX-16 is a 16-bit ADC.
- What is the sampling rate of the LTC2391HLX-16?
The sampling rate is 250ksps (250,000 samples per second).
- What type of input does the LTC2391HLX-16 support?
The LTC2391HLX-16 supports differential inputs.
- What are the power supply requirements for the LTC2391HLX-16?
The device operates from a single 5V supply with 1.8V to 5V I/O voltages.
- What is the signal-to-noise ratio (SNR) of the LTC2391HLX-16?
The SNR is 94dB typical at an input frequency of 20kHz.
- Does the LTC2391HLX-16 have an internal reference?
Yes, it includes a precision internal reference with 0.5% initial accuracy and ±20ppm/°C temperature coefficient.
- What are the interface options for the LTC2391HLX-16?
The device supports both SPI and parallel interfaces.
- What is the power dissipation of the LTC2391HLX-16 at 250ksps?
The power dissipation is 95mW at 250ksps.
- What are the operating temperature ranges for the LTC2391HLX-16?
The operating temperature range is -40°C to 125°C.
- What package options are available for the LTC2391HLX-16?
The device is available in 48-lead LQFP and QFN packages.
- Does the LTC2391HLX-16 have power-down modes?
Yes, it has nap and sleep power-down modes to reduce power during inactive periods.
