Overview
The LTC2321CUFD-12 is a high-performance, dual-channel, 12-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, making it ideal for applications that demand a wide dynamic range and high common mode rejection.
The LTC2321CUFD-12 achieves ±0.5LSB integral nonlinearity (INL) typical, with no missing codes at 12 bits, and a signal-to-noise ratio (SNR) of 73dB. It includes an onboard low drift (20ppm/°C max) 2.048V or 4.096V temperature-compensated reference. The device also supports a high-speed SPI-compatible serial interface that can operate in CMOS or LVDS modes.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Number of Bits | 12 | |
| Sampling Rate | 2 Msps | |
| Input Type | Differential, Pseudo-Differential | |
| Data Interface | LVDS, SPI, Serial | |
| Integral Nonlinearity (INL) | ±0.5 LSB | |
| Signal-to-Noise Ratio (SNR) | 73 dB | |
| Supply Voltage | 3.13 V to 3.47 V, 4.75 V to 5.25 V | V |
| Power Consumption (per channel) | 30 mW | mW |
| Nap Mode Current | 2.55 mA to 5 mA | mA |
| Sleep Mode Current | 5 μW | μW |
| Operating Temperature | 0°C to 70°C | °C |
| Package | 28-WFQFN Exposed Pad |
Key Features
- Low noise, high-speed dual 12-bit SAR ADC with differential inputs and wide input common mode range.
- Operates from a single 3.3V or 5V supply.
- 8V peak-to-peak differential input range.
- Onboard low drift (20ppm/°C max) 2.048V or 4.096V temperature-compensated reference.
- High-speed SPI-compatible serial interface supporting CMOS or LVDS modes.
- Fast 2 Msps per channel throughput with zero cycle latency.
- Low power consumption: 30 mW per channel, with nap and sleep modes for further power savings.
- Simultaneous sampling capability.
Applications
- High-speed data acquisition systems.
- Industrial automation and control.
- Medical imaging and diagnostics.
- Aerospace and defense applications.
- Automotive systems requiring high-speed and low-noise ADCs.
- Test and measurement equipment.
Q & A
- What is the resolution of the LTC2321CUFD-12 ADC?
The LTC2321CUFD-12 is a 12-bit ADC.
- What is the sampling rate of the LTC2321CUFD-12?
The sampling rate is 2 Msps per channel.
- What type of input does the LTC2321CUFD-12 support?
The device supports differential and pseudo-differential inputs.
- What are the supply voltage options for the LTC2321CUFD-12?
The device can operate from a single 3.3V or 5V supply.
- What is the power consumption of the LTC2321CUFD-12 per channel?
The power consumption is 30 mW per channel.
- Does the LTC2321CUFD-12 have power-saving modes?
- What is the operating temperature range of the LTC2321CUFD-12?
The operating temperature range is 0°C to 70°C.
- What type of package does the LTC2321CUFD-12 come in?
The device is packaged in a 28-WFQFN Exposed Pad.
- Does the LTC2321CUFD-12 support simultaneous sampling?
- What is the signal-to-noise ratio (SNR) of the LTC2321CUFD-12?
The SNR is 73 dB.
