Overview
The LTC2373IUH-18#TRPBF is a high-performance, 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 a highly configurable, low crosstalk 8-channel input multiplexer. It supports fully differential, pseudo-differential unipolar, and pseudo-differential bipolar analog input ranges, making it versatile for various applications. The LTC2373-18 is known for its low noise, high speed, and high accuracy, achieving 100dB signal-to-noise ratio (SNR) in fully differential mode and 95dB SNR in pseudo-differential mode.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 bits |
| Sampling 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) |
| SNR | 100dB (Fully Differential), 95dB (Pseudo-Differential) |
| Integral Nonlinearity (INL) | ±2.75LSB (Maximum) |
| Total Harmonic Distortion (THD) | 110dB (Typical) at f = 1kHz |
| Reference Voltage | 2.048V, Low Drift (20ppm/°C max) |
| Supply Voltage | Single 5V |
| I/O Voltage | 1.8V, 2.5V, 3.3V, 5V |
| Power Dissipation | 40mW (Typical), 300μW in Sleep Mode |
| Operating Temperature | -40°C to 125°C |
| Package | 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 (20ppm/°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
- Internal oscillator for conversion timing, eliminating the need for external timing signals
- No pipeline delay, no cycle latency
- Low power consumption with automatic nap mode between conversions and a sleep mode for further power savings
Applications
- Communications
- Industrial automation
- Instrumentation and measurement
- Aerospace and defense
- Motor and power control
- Healthcare
Q & A
- What is the resolution of the LTC2373IUH-18#TRPBF ADC?
The LTC2373IUH-18#TRPBF has an 18-bit resolution.
- What is the sampling rate of the LTC2373IUH-18#TRPBF?
The sampling rate is 1 Msps.
- How many channels does the LTC2373IUH-18#TRPBF support?
The device supports 8 channels.
- What are the supported input ranges for the LTC2373IUH-18#TRPBF?
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 SNR of the LTC2373IUH-18#TRPBF?
The SNR is 100dB in fully differential mode and 95dB in pseudo-differential mode.
- What is the power dissipation of the LTC2373IUH-18#TRPBF?
The typical power dissipation is 40mW, and it reduces to 300μW in sleep mode.
- What is the operating temperature range of the LTC2373IUH-18#TRPBF?
The operating temperature range is -40°C to 125°C.
- What type of package does the LTC2373IUH-18#TRPBF come in?
The device comes in a 32-Lead QFN (5mm x 5mm x 0.75mm) package.
- Does the LTC2373IUH-18#TRPBF have an onboard reference?
Yes, it has an onboard low drift (20ppm/°C max) 2.048V temperature-compensated reference and a single-shot capable reference buffer.
- What kind of serial interface does the LTC2373IUH-18#TRPBF support?
The device supports a high speed SPI-compatible serial interface with 1.8V, 2.5V, 3.3V, and 5V logic.
