Overview
The LTC2348ILX-18#PBF is an 18-bit, low noise, octal-channel simultaneous sampling successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a 5V low voltage supply and features flexible high voltage supplies, allowing each channel to be independently configured on a conversion-by-conversion basis. The ADC supports input voltage spans of ±10.24V, 0V to 10.24V, ±5.12V, or 0V to 5.12V, making it highly versatile for various high voltage applications requiring wide dynamic range.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 bits |
| Number of Channels | 8 |
| Sample Rate | 200 ksps |
| Input Voltage Range | ±10.24V, 0V to 10.24V, ±5.12V, 0V to 5.12V |
| Input Common Mode Range | Wide input common mode range |
| CMRR | 118 dB |
| INL | ±3 LSB |
| SNR | 96.7 dB |
| Supply Voltage | 5V (low voltage), flexible high voltage supplies |
| Package | 48-Lead LQFP (7mm x 7mm) |
| Serial Interface | Pin-selectable SPI CMOS (1.8V to 5V) and LVDS |
Key Features
- Simultaneous sampling of all 8 channels
- Flexible SoftSpan™ interface for conversion-by-conversion control of input voltage span on a per-channel basis
- Internal 2.048V reference and 2X buffer for simplified operation
- Option to use an external reference to increase input range and SNR
- Wide input common mode range and high CMRR (118 dB) for direct digitization of various signals
- No missing codes at 18 bits and low INL (±3 LSB)
- Support for pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces
- Configurable data output lanes (1 to 8 lanes in CMOS mode) for optimized bus width and throughput
Applications
The LTC2348ILX-18#PBF is ideal for various high voltage applications that require wide dynamic range, such as:
- Industrial process control and monitoring
- Medical imaging and diagnostics
- Aerospace and defense systems
- Automotive and industrial automation
- High-precision measurement and data acquisition systems
Q & A
- What is the resolution of the LTC2348ILX-18#PBF ADC?
The LTC2348ILX-18#PBF has an 18-bit resolution.
- How many channels does the LTC2348ILX-18#PBF support?
The device supports 8 simultaneous sampling channels.
- What are the input voltage ranges supported by the LTC2348ILX-18#PBF?
The ADC supports input voltage ranges of ±10.24V, 0V to 10.24V, ±5.12V, and 0V to 5.12V.
- What is the sample rate of the LTC2348ILX-18#PBF?
The sample rate is 200 ksps.
- What is the CMRR of the LTC2348ILX-18#PBF?
The common-mode rejection ratio (CMRR) is 118 dB.
- Can the LTC2348ILX-18#PBF use an external reference?
- What serial interfaces are supported by the LTC2348ILX-18#PBF?
The device supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces.
- What is the package type of the LTC2348ILX-18#PBF?
The device is packaged in a 48-Lead LQFP (7mm x 7mm).
- Is the LTC2348ILX-18#PBF suitable for high voltage applications?
- Can individual channels of the LTC2348ILX-18#PBF be disabled?
