ADC single-channel low-noise high-precision 16-bit analog-to-digital converter MCP3425A0T-E/CH

Features • 16-bit ΔΣ ADC in SOT-23-6 package • Differential input operation • Internal offset voltage and gain self-calibration for each conversion • On-chip reference voltage: - Accuracy: 2.048V ± 0.05%• On-chip Programmable GainAmplifier (PGA) : - Gain of 1, 2, 4 or 8• On-chip oscillator • INL: FSR 10 ppm (FSR = 4.096V/PGA) • Programmable data conversion rate options: -15 SPS (16-bit), -60 SPS (14-bit), -240 SPS (12-bit) • Single or continuous conversion options • Low current consumption - Typical value 145 µA (VDD= 3V, continuous conversion) • Single conversion (1 SPS), VDD= 3V: - Typical values in 16-bit mode are 9.7 µA- Typical values in 14-bit mode are 2.4 µA- typical values in 12-bit mode are 0.6 µ A. • Supports I2C serial interface: - Standard, fast and high-speed modes • Single power supply operation: 2.7V to 5.5V• Extended temperature range: -40°C to 125°C Typical applications • Portable instruments • Electronic scales and electricity meters • Temperature detection using RTD, thermistors and thermocouples • Bridges for measuring pressure, strain and force

The MCP3425 is A single-channel low-noise, high-precision, differential input ΔΣ A/D converter in a small SOT-23-6 package, with a maximum resolution of 16 bits. The on-chip precision 2.048V reference voltage enables the differential input voltage range to be ±2.048V (Δ voltage = 4.096V). The device can use a 2-wire I2C-compatible serial interface and is powered by a single supply ranging from 2.7V to 5.5V. The user sets the controllable configuration bits through the 2-wire I2C serial interface, so that the MCP3425 device can perform conversion at a rate of 15, 60 or 240 samples per second (SPS). This device features an on-chip programmable gain amplifier (PGA), allowing users to select the PGA gain as x1, x2, x4 or x8 before the analog-to-digital conversion begins. This enables the MCP3425 device to convert smaller input signals at a higher resolution. This device has two conversion modes: (a) continuous conversion mode and (b) single conversion mode. In the single-conversion mode, the device automatically enters the low-current standby mode after one conversion, which can significantly reduce the current consumption during idle periods. The MCP3425 device can be used in various high-precision analog-to-digital data conversion applications that require simple design, low power consumption and small size.

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