Overview
The LTC2338CMS-18#TRPBF is a high-performance, 18-bit successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2338 family and is known for its low noise, high speed, and true bipolar input capabilities. Operating from a single 5V supply, it offers a ±10.24V fully differential input range, making it ideal for applications requiring a wide dynamic range and high voltage handling.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 bits |
| Sample Rate | 1 Msps |
| Input Range | ±10.24V true bipolar, fully differential |
| Supply Voltage | 5V single supply |
| Signal-to-Noise Ratio (SNR) | 100 dB |
| Integral Nonlinearity (INL) | ±4 LSB max |
| No Missing Codes | At 18 bits |
| Reference Voltage | 2.048V temperature compensated |
| Interface | High speed SPI-compatible serial interface (1.8V, 2.5V, 3.3V, 5V logic) |
| Power Consumption | 50 mW (active), 300 μW (sleep mode) |
| Package | 16-MSOP |
Key Features
- Low noise and high speed operation with 1 Msps throughput and no cycle latency.
- True bipolar input range of ±10.24V, suitable for high voltage applications.
- High accuracy with ±4 LSB INL max and no missing codes at 18 bits.
- On-board single-shot capable reference buffer with low drift (20 ppm/°C max) 2.048V temperature compensated reference.
- High speed SPI-compatible serial interface supporting multiple logic levels (1.8V, 2.5V, 3.3V, 5V) and daisy-chain mode.
- Low power consumption with automatic nap mode between conversions and a sleep mode for further power savings.
- Internal oscillator for setting conversion time, simplifying external timing considerations.
Applications
The LTC2338CMS-18#TRPBF is ideally suited for a variety of high-speed applications that require high accuracy and a wide dynamic range. These include:
- High voltage measurement systems.
- Industrial control and automation.
- Medical devices requiring precise analog-to-digital conversion.
- Aerospace and defense applications where high reliability and accuracy are critical.
- Test and measurement equipment.
Q & A
- What is the resolution of the LTC2338CMS-18#TRPBF ADC?
The LTC2338CMS-18#TRPBF has a resolution of 18 bits.
- What is the sample rate of the LTC2338CMS-18#TRPBF?
The sample rate is 1 Msps (1 million samples per second).
- What is the input voltage range of the LTC2338CMS-18#TRPBF?
The input voltage range is ±10.24V true bipolar, fully differential.
- What is the power consumption of the LTC2338CMS-18#TRPBF in active and sleep modes?
In active mode, the power consumption is 50 mW, and in sleep mode, it is 300 μW.
- Does the LTC2338CMS-18#TRPBF have an internal reference voltage?
Yes, it has an on-board single-shot capable reference buffer with a 2.048V temperature compensated reference.
- What type of interface does the LTC2338CMS-18#TRPBF use?
The LTC2338CMS-18#TRPBF uses a high speed SPI-compatible serial interface that supports 1.8V, 2.5V, 3.3V, and 5V logic levels.
- What is the package type of the LTC2338CMS-18#TRPBF?
The package type is 16-MSOP.
- Does the LTC2338CMS-18#TRPBF have any power-saving features?
Yes, it has an automatic nap mode between conversions and a sleep mode for further power savings.
- What is the signal-to-noise ratio (SNR) of the LTC2338CMS-18#TRPBF?
The SNR is 100 dB.
- Is the LTC2338CMS-18#TRPBF suitable for high-speed applications?
Yes, it is designed for high-speed applications with no cycle latency and fast throughput.
