Overview
The LTC2344-16, produced by Analog Devices Inc., is a 16-bit, low noise, 4-channel simultaneous sampling successive approximation register (SAR) analog-to-digital converter (ADC). This device features differential, wide common mode range inputs and operates from a 5V supply. Each channel can be independently configured to accept various signal ranges, including ±4.096V, 0V to 4.096V, ±2.048V, and 0V to 2.048V, making it highly versatile for a wide range of applications. The LTC2344-16 supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces, allowing for optimized bus width and throughput.
Key Specifications
| Parameter | Min | Max | Units | |
|---|---|---|---|---|
| Resolution | 16 bits | |||
| Sample Rate per Channel | 400 ksps | |||
| Supply Voltage (VDD) | 4.75 | 5.00 | 5.25 | V |
| Supply Voltage (OVDD) | 1.71 | 5.25 | V | |
| Supply Current (IVDD) | 500 mW | mW | ||
| Operating Temperature Range | -40°C to 125°C (LTC2344H, LTC2344MP) | °C | ||
| Integral Nonlinearity (INL) | ±1.25 LSB | LSB | ||
| Signal-to-Noise Ratio (SNR) | 93.4 dB | dB | ||
| Common Mode Rejection Ratio (CMRR) | 102 dB | dB | ||
Key Features
- Quad-channel simultaneous sampling SAR ADC
- Differential, wide common mode range inputs
- Per-channel SoftSpan input ranges: ±4.096V, 0V to 4.096V, ±2.048V, 0V to 2.048V
- Pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces
- Individual channels can be disabled to increase throughput on remaining channels
- No missing codes at 16 bits
- Low noise and high SNR (93.4 dB)
- High CMRR (102 dB)
Applications
The LTC2344-16 is suitable for various applications requiring high precision and wide dynamic range, such as:
- Industrial process control and monitoring
- Medical imaging and diagnostics
- Aerospace and defense systems
- Automotive and transportation systems
- High-performance data acquisition systems
Q & A
- What is the resolution of the LTC2344-16 ADC?
The LTC2344-16 has a resolution of 16 bits.
- What is the sample rate per channel of the LTC2344-16?
The sample rate per channel is 400 ksps.
- What are the supported input voltage ranges for each channel?
Each channel can be configured to accept ±4.096V, 0V to 4.096V, ±2.048V, or 0V to 2.048V signals.
- What serial interfaces are supported by the LTC2344-16?
The device supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces.
- Can individual channels be disabled to increase throughput?
- What is the common mode rejection ratio (CMRR) of the LTC2344-16?
The CMRR is 102 dB.
- What is the signal-to-noise ratio (SNR) of the LTC2344-16?
The SNR is 93.4 dB.
- What is the operating temperature range of the LTC2344-16?
The operating temperature range varies by model, but it includes ranges from 0°C to 70°C, -40°C to 85°C, -40°C to 125°C, and -55°C to 125°C.
- What is the power dissipation of the LTC2344-16?
The power dissipation is up to 500 mW.
- What package types are available for the LTC2344-16?
The device is available in a 32-lead QFN package (5mm x 5mm x 0.75mm with EP).
