ADC 18-bit analog-to-digital converter, single-channel serial I2C interface differential single-ended input 6-pin integrated circuit MCP3421A0T-E/CH

Features
• 18-bit ΔΣ ADC in a SOT-23-6 package
• Differential input operation
• Self calibration of Internal Offset and Gain per
each conversion
• On-board Voltage Reference:- Accuracy: 2.048V ± 0.05%- Drift: 5 ppm/°C
• On-board Programmable Gain Amplifier (PGA):- Gains of 1,2,4 or 8
• On-board Oscillator
• INL: 10 ppm of FSR (FSR = 4.096V/PGA)
• Programmable Data Rate Options:- 3.75 SPS (18 bits)- 15SPS (16 bits)- 60SPS (14 bits)- 240 SPS (12 bits)
• One-Shot or Continuous Conversion Options
• Low current consumption: - 145 µA typical
(VDD= 3V, Continuous Conversion)- 39µA typical
(VDD= 3V, One-Shot Conversion with 1 SPS)
• Supports I2C Serial Interface:- Standard, Fast and High Speed Modes
• Single Supply Operation: 2.7V to 5.5V
• Extended Temperature Range: -40°C to 125°C
Typical Applications
• Portable Instrumentation
• Weigh Scales and Fuel Gauges
• Temperature Sensing with RTD, Thermistor, and
Thermocouple
• Bridge Sensing for Pressure, Strain, and Force.

Description
The MCP3421 is a single channel low-noise, high
accuracy ΔΣ A/D converter with differential inputs and
up to 18 bits of resolution in a small SOT-23-6 package.
The on-board precision 2.048V reference voltage
enables an input range of ±2.048V differentially
(Δ voltage = 4.096V). The device uses a two-wire I2C
compatible serial interface and operates from a single
2.7V to 5.5V power supply.
The MCP3421 device performs conversion at rates of
3.75, 15, 60, or 240 samples per second (SPS)
depending on the user controllable configuration bit
settings using the two-wire I2C serial interface. This
device has an on-board programmable gain amplifier
(PGA). The user can select the PGA gain of x1, x2, x4,
or x8 before the analog-to-digital conversion takes
place. This allows the MCP3421 device to convert a
smaller input signal with high resolution. The device
has two conversion modes: (a) Continuous mode and
(b) One-Shot mode. In One-Shot mode, the device
enters a low current standby mode automatically after
one conversion. This reduces current consumption
greatly during idle periods.
The MCP3421 device can be used for various high
accuracy analog-to-digital data conversion applications
where design simplicity, low power, and small footprint
are major considerations.

Packaging and transportation instructions

- According to the standard export packaging.

Customers can choose from cartons, wooden cases and wooden pallets according to their own requirements.

Q&A

1. How to obtain the price?

We usually quote within 24 hours after receiving your inquiry (except weekends and holidays). If you are in urgent need of a price, please send us an email or contact us in any other way so that we can provide you with a quotation.

2. What is your delivery time?

This depends on the quantity of the order and the season in which you place the order. Usually, we can ship the goods within 7 to 15 days (for small batches), and for large batches, it takes about 30 days.

3. What are your payment terms?

Factory price, 30% deposit, 70%T/T payment before shipment.

4. What is the mode of transportation?

It can be transported by sea, air or express delivery (EMS, UPS, DHL, TNT, FEDEX, etc.). Please confirm with us before placing an order.

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