Overview
The LTC2435-1CGN#TRPBF is a 20-bit, no-latency analog-to-digital converter (ADC) produced by Analog Devices Inc. This device is part of the microPOWER™ series and is known for its high precision and low power consumption. It features a differential input and differential reference, making it suitable for a wide range of applications requiring high accuracy and noise rejection.
Key Specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices Inc. |
| Part Number | LTC2435-1CGN#TRPBF |
| Number of Bits | 20 |
| Input Type | Differential |
| Reference Type | Differential |
| Supply Voltage (Digital/Analog) | 2.7 V to 5.5 V |
| Package/Case | 16-SSOP (0.154", 3.90mm Width) |
| Operating Temperature | -40°C to 85°C |
| Sampling Rate | 15 Hz (with internal oscillator) |
| Integral Non-Linearity (INL) | 3 ppm |
| RMS Noise | 0.8 ppm |
| Gain Error | 10 ppm |
| Input Differential Mode Rejection | Better than 110 dB at 50 Hz or 60 Hz |
| Supply Current | 200 μA (active), 4 μA (auto sleep) |
| Data Interface | 3-wire SPI and MICROWIRE compatible |
Key Features
- No-latency conversion, allowing for single cycle settling time in multiplexed applications.
- Internal oscillator with no external frequency setting components required.
- Differential input and differential reference with a common mode range from GND to VCC.
- High accuracy with 3 ppm INL and 0.8 ppm RMS noise.
- Low power consumption with 200 μA active current and 4 μA in auto sleep mode.
- Flexible ratiometric and remote sensing measurement configurations.
- Compatibility with SPI and MICROWIRE digital interfaces.
Applications
- Weight scales and direct sensor digitization.
- Direct temperature measurement and gas analyzers.
- Strain gage transducers and instrumentation.
- Data acquisition and industrial process control.
- 6-digit DVMs and C-load applications.
Q & A
- What is the resolution of the LTC2435-1CGN#TRPBF ADC?
The LTC2435-1CGN#TRPBF is a 20-bit analog-to-digital converter.
- What is the supply voltage range for this ADC?
The supply voltage range is from 2.7 V to 5.5 V for both digital and analog supplies.
- What type of input does the LTC2435-1CGN#TRPBF support?
The ADC supports differential inputs.
- Does the LTC2435-1CGN#TRPBF have an internal oscillator?
- What is the typical sampling rate of the LTC2435-1CGN#TRPBF?
The typical sampling rate is 15 Hz when using the internal oscillator.
- How accurate is the LTC2435-1CGN#TRPBF in terms of INL and RMS noise?
The ADC has an INL of 3 ppm and an RMS noise of 0.8 ppm.
- What is the power consumption of the LTC2435-1CGN#TRPBF?
The ADC consumes 200 μA in active mode and 4 μA in auto sleep mode.
- What digital interfaces does the LTC2435-1CGN#TRPBF support?
The ADC supports 3-wire SPI and MICROWIRE digital interfaces.
- What are some common applications of the LTC2435-1CGN#TRPBF?
Common applications include weight scales, direct temperature measurement, gas analyzers, strain gage transducers, and data acquisition.
- What is the operating temperature range of the LTC2435-1CGN#TRPBF?
The operating temperature range is from -40°C to 85°C.
