Overview
The LTC2373CUH-18#TRPBF is a high-performance, 18-bit successive approximation register (SAR) analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is part of the LTC2373 family and is known for its low noise, high speed, and highly configurable design. Operating from a single 5V supply, it supports various analog input ranges and features a high-speed SPI-compatible serial interface. The LTC2373CUH-18 is ideal for applications requiring precise and efficient analog-to-digital conversion.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 bits |
| Sample Rate | 1 Msps |
| Number of Channels | 8 channels |
| Input Range | Fully differential (4.096V), pseudo-differential unipolar (0V to 4.096V), pseudo-differential bipolar (2.048V) |
| Integral Nonlinearity (INL) | ±2.75 LSB (maximum) |
| Signal-to-Noise Ratio (SNR) | 100 dB (fully differential), 95 dB (pseudo-differential) |
| Total Harmonic Distortion (THD) | 110 dB (typical) at f = 1 kHz |
| Reference Voltage | Onboard 2.048V temperature-compensated reference |
| Supply Voltage | Single 5V supply |
| I/O Voltage | 1.8V, 2.5V, 3.3V, 5V |
| Package | 32-Lead QFN (5mm x 5mm x 0.75mm) |
| Operating Temperature | 0°C to 70°C |
| Power Dissipation | 40 mW (typical), 300 μW in sleep mode |
Key Features
- Highly configurable, low crosstalk 8-channel input multiplexer
- Supports fully differential, pseudo-differential unipolar, and pseudo-differential bipolar analog input ranges
- Onboard low drift (20 ppm/°C max) 2.048V temperature-compensated reference and single-shot capable reference buffer
- High-speed SPI-compatible serial interface supporting 1.8V, 2.5V, 3.3V, and 5V logic
- Programmable sequencer with a depth of 16
- No pipeline delay, no cycle latency
- Automatic nap between conversions for reduced power dissipation
- Sleep mode for further power savings
Applications
The LTC2373CUH-18 is suitable for a wide range of applications, including:
- Communications
- Industrial automation
- Instrumentation and measurement
- Aerospace and defense
- Motor and power control
- Healthcare
Q & A
- What is the resolution of the LTC2373CUH-18?
The LTC2373CUH-18 has an 18-bit resolution. - What is the sample rate of the LTC2373CUH-18?
The sample rate is 1 Msps. - How many channels does the LTC2373CUH-18 support?
The device supports 8 channels. - What are the supported input ranges for the LTC2373CUH-18?
The device supports fully differential (4.096V), pseudo-differential unipolar (0V to 4.096V), and pseudo-differential bipolar (2.048V) input ranges. - What is the integral nonlinearity (INL) of the LTC2373CUH-18?
The INL is ±2.75 LSB (maximum). - What is the signal-to-noise ratio (SNR) of the LTC2373CUH-18?
The SNR is 100 dB (fully differential) and 95 dB (pseudo-differential). - What is the power dissipation of the LTC2373CUH-18?
The power dissipation is 40 mW (typical), and 300 μW in sleep mode. - Does the LTC2373CUH-18 have an onboard reference voltage?
Yes, it has an onboard 2.048V temperature-compensated reference. - What is the operating temperature range of the LTC2373CUH-18?
The operating temperature range is 0°C to 70°C. - What package type is the LTC2373CUH-18 available in?
The device is available in a 32-Lead QFN (5mm x 5mm x 0.75mm) package.
