Overview
The LTC2373HUH-18 is a high-performance, low noise, and high-speed 18-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single 5V supply and features an 8-channel input multiplexer with highly configurable and low crosstalk capabilities. It supports fully differential, pseudo-differential unipolar, and pseudo-differential bipolar analog input ranges. The LTC2373HUH-18 is designed for applications requiring high precision and low power consumption, making it suitable for a variety of industrial, medical, and communication systems.
Key Specifications
| Parameter | Value | Units |
|---|---|---|
| Resolution | 18 bits | |
| Sample Rate | 1 Msps | |
| Number of Channels | 8 | |
| Input Range | Fully Differential (±4.096V), Pseudo-Differential Unipolar (0V to 4.096V), Pseudo-Differential Bipolar (±2.048V) | V |
| Integral Nonlinearity (INL) | ±2.75 LSB (maximum) | LSB |
| Signal-to-Noise Ratio (SNR) | 100 dB (fully differential), 95 dB (pseudo-differential) | dB |
| Total Harmonic Distortion (THD) | -110 dB (typical at f = 1 kHz) | dB |
| Supply Voltage | 5 V | V |
| Power Dissipation | 40 mW (typical), 300 μW (sleep mode) | mW/μW |
| Operating Temperature Range | -40°C to 125°C | °C |
| Package Type | 32-Lead QFN (5mm x 5mm x 0.75mm) |
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
- Internal oscillator for conversion timing
- Low power dissipation with automatic nap mode and sleep mode (300 μW)
Applications
- Industrial automation and control systems
- Instrumentation and measurement systems
- Communication systems
- Aerospace and defense applications
- Motor and power control systems
- Healthcare and medical devices
Q & A
- What is the resolution of the LTC2373HUH-18 ADC?
The LTC2373HUH-18 has an 18-bit resolution.
- What is the sample rate of the LTC2373HUH-18?
The sample rate is 1 Msps (1 million samples per second).
- How many channels does the LTC2373HUH-18 support?
The device supports 8 channels.
- What are the input ranges supported by the LTC2373HUH-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 signal-to-noise ratio (SNR) of the LTC2373HUH-18?
The SNR is 100 dB for fully differential inputs and 95 dB for pseudo-differential inputs.
- How much power does the LTC2373HUH-18 consume?
The typical power dissipation is 40 mW, and it reduces to 300 μW in sleep mode.
- What is the operating temperature range of the LTC2373HUH-18?
The operating temperature range is -40°C to 125°C.
- What type of package does the LTC2373HUH-18 come in?
The device comes in a 32-Lead QFN (5mm x 5mm x 0.75mm) package.
- Does the LTC2373HUH-18 have an onboard reference?
Yes, it has an onboard low drift (20 ppm/°C max) 2.048V temperature-compensated reference and a single-shot capable reference buffer.
- What type of serial interface does the LTC2373HUH-18 support?
The device supports a high-speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V, and 5V logic.
