Overview
The LTC2391-16, produced by Analog Devices Inc., is a high-performance, low noise, 16-bit successive approximation register (SAR) analog-to-digital converter (ADC). This device operates from a single 5V supply and is designed to support a large ±4.096V fully differential input range, making it ideal for applications requiring maximum dynamic range. The LTC2391-16 is characterized by its high speed and low power consumption, making it suitable for a wide range of high-speed applications.
Key Specifications
| Specification | Value |
|---|---|
| Number of Bits | 16 |
| Sampling Rate | 250ksps |
| Input Type | Differential |
| Input Range | ±4.096V |
| Supply Voltage (Analog/Digital) | 5V |
| Reference Type | Internal, External |
| Integral Nonlinearity (INL) | ±2LSB max |
| Signal-to-Noise Ratio (SNR) | 94dB (typ) |
| Operating Temperature | 0°C ~ 70°C |
| Package | 48-QFN (7x7x0.75mm w/ EP) |
| Interface | SPI, Parallel |
| Power Consumption | 95mW at 250ksps |
| Power-Down Modes | Nap and Sleep |
Key Features
- High speed 16-bit SAR ADC with 250ksps throughput and no cycle latency in both parallel and serial interface modes.
- Low noise performance with 94dB SNR (typ).
- Large ±4.096V fully differential input range.
- Precision internal reference with 0.5% initial accuracy and ±20ppm/°C temperature coefficient.
- Low power consumption of 95mW at 250ksps, with nap and sleep power-down modes to reduce power during inactive periods.
- Internal oscillator for setting conversion time, easing external timing considerations.
- No missing codes at 16 bits and ±2LSB INL max.
- Lead-free and RoHS compliant.
Applications
The LTC2391-16 is ideally suited for a variety of high-speed applications that require high performance and low noise. These include:
- Industrial automation and control systems.
- Medical devices requiring high precision and low noise.
- Aerospace and defense applications where reliability and accuracy are critical.
- High-speed data acquisition systems.
- Test and measurement equipment.
Q & A
- What is the sampling rate of the LTC2391-16?
The LTC2391-16 has a sampling rate of 250ksps.
- What is the input range of the LTC2391-16?
The input range is ±4.096V fully differential.
- What is the signal-to-noise ratio (SNR) of the LTC2391-16?
The SNR is 94dB (typ).
- Does the LTC2391-16 have an internal reference?
- What are the power-down modes available on the LTC2391-16?
The device has nap and sleep power-down modes to reduce power consumption during inactive periods.
- What is the package type of the LTC2391-16?
The device is available in a 48-QFN (7x7x0.75mm w/ EP) package.
- Is the LTC2391-16 lead-free and RoHS compliant?
- What are the operating temperature ranges for the LTC2391-16?
The operating temperature range is 0°C ~ 70°C.
- What interfaces does the LTC2391-16 support?
The device supports both SPI and parallel interfaces.
- How much power does the LTC2391-16 consume at 250ksps?
The power consumption is 95mW at 250ksps.
