Overview
The LTC2321HUFD-14, produced by Analog Devices Inc., is a high-performance, low noise, dual 14-bit + sign successive approximation register (SAR) analog-to-digital converter (ADC). This device is designed for high-speed applications requiring a wide dynamic range and high common mode rejection. It operates from a single 3.3V or 5V supply and features differential inputs with an 8V peak-to-peak differential input range. The LTC2321HUFD-14 is ideal for various high-speed applications due to its fast 2Msps per channel throughput and no-cycle latency.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 14-bit + sign | |
| Sampling Rate | 2Msps | |
| Differential Input Range | 8V peak-to-peak | |
| Supply Voltage | 3.3V or 5V | V |
| Integral Nonlinearity (INL) | ±1LSB typical | |
| Signal-to-Noise Ratio (SNR) | 80dB | dB |
| Reference Voltage | 2.048V or 4.096V | V |
| Reference Temperature Coefficient | 20ppm/°C max | ppm/°C |
| Power Consumption (active) | 33mW per channel | mW |
| Power Consumption (nap/sleep mode) | 5μW | μW |
| Interface | SPI-compatible (CMOS or LVDS) | |
| Package | 28QFN |
Key Features
- Low noise and high speed operation
- Dual 14-bit + sign SAR ADC with differential inputs
- Wide input common mode range
- Onboard low drift temperature-compensated reference (2.048V or 4.096V)
- High speed SPI-compatible serial interface supporting CMOS or LVDS
- Fast 2Msps per channel throughput with no-cycle latency
- Low power consumption: 33mW per channel in active mode and 5μW in nap/sleep mode
- No missing codes at 14 bits and ±1LSB INL typical
- 80dB SNR and high common mode rejection
Applications
The LTC2321HUFD-14 is suited for a wide variety of high-speed applications, including:
- High-speed data acquisition systems
- Medical imaging and diagnostics
- Industrial control and automation
- Aerospace and defense systems
- Test and measurement equipment
Q & A
- What is the resolution of the LTC2321HUFD-14 ADC?
The LTC2321HUFD-14 has a resolution of 14-bit + sign.
- What is the sampling rate of the LTC2321HUFD-14?
The sampling rate is 2Msps per channel.
- What is the differential input range of the LTC2321HUFD-14?
The differential input range is 8V peak-to-peak.
- What are the supply voltage options for the LTC2321HUFD-14?
The device operates from a single 3.3V or 5V supply.
- What is the integral nonlinearity (INL) of the LTC2321HUFD-14?
The INL is ±1LSB typical.
- What is the signal-to-noise ratio (SNR) of the LTC2321HUFD-14?
The SNR is 80dB.
- Does the LTC2321HUFD-14 have an onboard reference voltage?
Yes, it has an onboard low drift temperature-compensated reference of 2.048V or 4.096V.
- What type of interface does the LTC2321HUFD-14 support?
The device supports a high speed SPI-compatible serial interface that can operate in CMOS or LVDS mode.
- How much power does the LTC2321HUFD-14 consume in active and sleep modes?
In active mode, it consumes 33mW per channel, and in nap/sleep mode, it consumes 5μW.
- What is the package type of the LTC2321HUFD-14?
The device is packaged in a 28QFN package.
