Overview
The LTC2353ILX-18#PBF is an 18-bit, low noise, dual-channel simultaneous sampling 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 high precision and flexibility in various high-voltage applications. It operates from a 5V low voltage supply and can be configured to accept a range of input signals, including ±10.24V, 0V to 10.24V, ±5.12V, and 0V to 5.12V, making it suitable for a wide range of industrial and medical 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, ±10.24V range) |
| Signal-to-Noise Ratio (SNR) | 96.4 dB |
| Common Mode Range | 30 Vpp |
| 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 Type | 48-Lead (7mm × 7mm) Plastic LQFP |
| Operating Temperature | -40°C to 125°C |
| Interface | SPI CMOS (1.8V to 5V), LVDS |
Key Features
- Buffered differential inputs with picoamp input leakage.
- Wide input common mode range and high CMRR.
- Flexible high voltage supplies and internal reference and buffer.
- Pin-selectable SPI CMOS (1.8V to 5V) and LVDS serial interfaces.
- Option to disable one channel to increase throughput on the other channel.
- No missing codes at 18 bits and low integral nonlinearity.
Applications
- Simultaneous sampling of two buffered channels.
- High-voltage industrial and medical applications.
- Applications requiring wide dynamic range and high precision.
- Data acquisition systems.
- Test and measurement equipment.
Q & A
- What is the resolution of the LTC2353ILX-18#PBF ADC? The resolution is 18 bits.
- What is the sampling rate of the LTC2353ILX-18#PBF? The sampling rate is 550 ksps per channel.
- What are the input voltage ranges supported by the LTC2353ILX-18#PBF? The device supports input ranges of ±10.24V, 0V to 10.24V, ±5.12V, and 0V to 5.12V.
- What is the input leakage current of the LTC2353ILX-18#PBF? The input leakage current is 500 pA / 12 nA (max at 85°C/125°C).
- What is the integral nonlinearity (INL) of the LTC2353ILX-18#PBF? The INL is ±3.5 LSB (max, ±10.24V range).
- What is the signal-to-noise ratio (SNR) of the LTC2353ILX-18#PBF? The SNR is 96.4 dB.
- What is the common mode rejection ratio (CMRR) of the LTC2353ILX-18#PBF? The CMRR is 124 dB.
- What are the supported interface types for the LTC2353ILX-18#PBF? The device supports 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 LTC2353ILX-18#PBF? The operating temperature range is -40°C to 125°C.
