Overview
The LTC2372IUH-18#TRPBF is a high-performance, 18-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the LTC2372-18 series, known for its low noise, high speed, and highly configurable design. It operates from a single 5V supply and features an 8-channel input multiplexer, supporting various analog input ranges including fully differential, pseudo-differential unipolar, and pseudo-differential bipolar configurations.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 bits |
| Sample Rate | 500 ksps |
| Number of Channels | 8 |
| Input Range | Fully differential, pseudo-differential unipolar, pseudo-differential bipolar |
| Supply Voltage | 5V |
| Signal-to-Noise Ratio (SNR) | 100dB (fully differential), 95dB (pseudo-differential) |
| Integral Nonlinearity (INL) | ±2.75 LSB (maximum) |
| Reference Voltage | 2.048V (temperature-compensated) |
| Interface | SPI-compatible serial interface (1.8V, 2.5V, 3.3V, 5V logic) |
| Power Consumption | 27 mW (active), 300 μW (sleep mode) |
| Package | 32-QFN |
Key Features
- Highly configurable 8-channel input multiplexer with low crosstalk.
- 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 a single-shot capable reference buffer.
- High speed SPI-compatible serial interface with programmable sequencer (depth of 16).
- Internal oscillator for setting conversion time, reducing external timing considerations.
- Low power consumption with automatic nap between conversions and a sleep mode for further power savings.
Applications
The LTC2372IUH-18#TRPBF is suitable for a variety of applications that require high precision and low noise analog-to-digital conversion. These include:
- Medical imaging and diagnostics.
- Industrial process control and automation.
- Aerospace and defense systems.
- High-end audio and professional audio equipment.
- Scientific instruments and data acquisition systems.
Q & A
- What is the resolution of the LTC2372IUH-18#TRPBF?
The LTC2372IUH-18#TRPBF has a resolution of 18 bits. - What is the sample rate of this ADC?
The sample rate is 500 ksps. - How many channels does this ADC support?
This ADC supports 8 channels. - What are the supported input ranges for this ADC?
The supported input ranges include fully differential, pseudo-differential unipolar, and pseudo-differential bipolar configurations. - What is the supply voltage for this component?
The supply voltage is 5V. - What is the signal-to-noise ratio (SNR) of this ADC?
The SNR is 100dB for fully differential inputs and 95dB for pseudo-differential inputs. - What is the integral nonlinearity (INL) of this ADC?
The INL is ±2.75 LSB (maximum). - Does this ADC have an onboard reference voltage?
Yes, it has an onboard low drift (20 ppm/°C max) 2.048V temperature-compensated reference. - What type of interface does this ADC use?
This ADC uses a SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V, and 5V logic. - How much power does this ADC consume?
The power consumption is 27 mW during active operation and 300 μW in sleep mode.
