Overview
The LTC2353HLX-18#PBF is a high-performance, 18-bit, low-noise, dual-channel successive approximation register (SAR) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the LTC2353 series and is known for its buffered differential inputs, wide common mode range, and high throughput. It operates from a 5V low voltage supply and can be configured to accept various input signal ranges, making it versatile for a wide range of high-voltage applications.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 18 bits |
| Sampling Rate | 550 ksps per channel |
| Input Range | ±10.24V, 0V to 10.24V, ±5.12V, 0V to 5.12V |
| Input Leakage | 500 pA / 12 nA (max) at 85°C / 125°C |
| Integral Nonlinearity (INL) | ±3.5 LSB (max) |
| Signal-to-Noise Ratio (SNR) | 96.4 dB |
| Common Mode Rejection Ratio (CMRR) | 124 dB |
| Supply Voltage (VCC) | -0.3V to (VEE + 40V) |
| Supply Voltage (VEE) | -17.4V to 0.3V |
| Supply Voltage Difference (VCC – VEE) | 40V |
| Package | 48-Lead (7mm × 7mm) Plastic LQFP |
| Operating Temperature | -40°C to 85°C |
Key Features
- Buffered differential inputs with wide common mode range and picoamp input leakage.
- Flexible input signal ranges: ±10.24V, 0V to 10.24V, ±5.12V, 0V to 5.12V.
- High throughput with 550 ksps per channel.
- Low noise and high accuracy with ±3.5 LSB INL and 96.4 dB SNR.
- Pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces.
- Option to disable one channel to increase throughput on the other channel.
- Integrated analog buffers and internal reference and buffer.
Applications
- Simultaneous sampling of two buffered channels.
- High-voltage applications requiring wide dynamic range.
- Industrial control and automation systems.
- Medical devices and diagnostic equipment.
- Aerospace and defense systems.
- Test and measurement instruments.
Q & A
- What is the resolution of the LTC2353HLX-18#PBF ADC?
The LTC2353HLX-18#PBF has an 18-bit resolution.
- What are the input signal ranges supported by the LTC2353HLX-18#PBF?
The device supports input signal ranges of ±10.24V, 0V to 10.24V, ±5.12V, and 0V to 5.12V.
- What is the sampling rate of the LTC2353HLX-18#PBF?
The sampling rate is 550 ksps per channel.
- What is the maximum input leakage of the LTC2353HLX-18#PBF?
The maximum input leakage is 500 pA / 12 nA at 85°C / 125°C.
- What is the integral nonlinearity (INL) of the LTC2353HLX-18#PBF?
The INL is ±3.5 LSB (max).
- What serial interfaces are supported by the LTC2353HLX-18#PBF?
The device supports pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces.
- Can one channel be disabled to increase throughput on the other channel?
Yes, one channel can be disabled to increase throughput on the other channel.
- What is the operating temperature range of the LTC2353HLX-18#PBF?
The operating temperature range is -40°C to 85°C.
- What is the package type of the LTC2353HLX-18#PBF?
The package type is 48-Lead (7mm × 7mm) Plastic LQFP.
- What are some typical applications of the LTC2353HLX-18#PBF?
Typical applications include simultaneous sampling, high-voltage applications, industrial control, medical devices, aerospace, and test and measurement instruments.
