Overview
The LTC2321IUFD-14 is a high-performance, dual 14-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is designed for high-speed applications requiring low noise and wide input common mode range. It operates from a single 3.3V or 5V supply and features differential inputs with an 8V peak-to-peak differential input range. The LTC2321IUFD-14 is ideal for applications that demand a wide dynamic range and high common mode rejection.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 14 Bits + Sign | |
| Sampling Rate | 2 Msps per channel | |
| Input Range | 8 V peak-to-peak differential | |
| Integral Linearity Error (INL) | ±1 LSB typical | |
| Differential Linearity Error (DNL) | ±0.4 LSB typical | |
| Signal-to-Noise Ratio (SNR) | 80 dB typical | |
| Supply Voltage | 3.3V or 5V | |
| Power Consumption (active) | 33 mW per channel | |
| Power Consumption (nap/sleep mode) | 5 μW | |
| Operating Temperature | -40°C to 85°C | |
| Package | 28-QFN (4x5) with exposed pad | |
| Interface | SPI-compatible serial interface (CMOS or LVDS) |
Key Features
- Low noise and high speed operation
- Dual 14-bit successive approximation register (SAR) ADC with differential inputs
- Wide input common mode range and high common mode rejection
- Onboard low drift (20 ppm/°C max) 2.048V or 4.096V temperature-compensated reference
- High speed SPI-compatible serial interface supporting CMOS or LVDS
- Fast 2 Msps per channel throughput with no cycle latency
- Low power consumption with nap and sleep modes
- Simultaneous sampling capability
Applications
- High-speed data acquisition systems
- Medical imaging and diagnostics
- Industrial process control and automation
- Aerospace and defense applications
- Automotive systems requiring high precision and reliability
- Test and measurement equipment
Q & A
- What is the resolution of the LTC2321IUFD-14 ADC?
The LTC2321IUFD-14 has a resolution of 14 bits + sign.
- What is the sampling rate of the LTC2321IUFD-14?
The sampling rate is 2 Msps per channel.
- What is the input range of the LTC2321IUFD-14?
The input range is 8 V peak-to-peak differential.
- What is the typical integral linearity error (INL) of the LTC2321IUFD-14?
The typical INL is ±1 LSB.
- What is the signal-to-noise ratio (SNR) of the LTC2321IUFD-14?
The SNR is typically 80 dB.
- What are the power consumption modes of the LTC2321IUFD-14?
The device consumes 33 mW per channel in active mode and 5 μW in nap/sleep mode.
- What is the operating temperature range of the LTC2321IUFD-14?
The operating temperature range is -40°C to 85°C.
- What type of interface does the LTC2321IUFD-14 support?
The device supports a high-speed SPI-compatible serial interface with CMOS or LVDS options.
- Does the LTC2321IUFD-14 have onboard reference voltage options?
Yes, it has onboard low drift (20 ppm/°C max) 2.048V or 4.096V temperature-compensated reference voltage options.
- What is the package type of the LTC2321IUFD-14?
The device is packaged in a 28-QFN (4x5) with an exposed pad.
