MICROCHIP

MCP3421A0T-E/CH

I2C 2.7V~5.5V SOT-23-6 Analog to Digital Converters (ADC) RoHS

SOT-23-6ROHS3 CompliantActive

18-Bit Analog-to-Digital Converter with I2C Interface and On-Board Reference

Manufacturer: MICROCHIP
Manufacturer part #: MCP3421A0T-E/CH
Store part #: C29454
Package / case: SOT-23-6
Category: Analog to Digital Converters (ADC)
Packaging: Tape & Reel (TR)

Datasheet (PDF)

Every Order Guarantee

100% Authentic · 30-Day Return or Replacement · policy

34,738 in stock

#C29454

Stock & price checked 6 days ago

Quantity	Unit price	Pack price
1+	₹180.50	₹180.50
10+	₹156.32	₹1,563.20
30+	₹139.35	₹4,180.50
100+	₹133.03	₹13,303.00
500+	₹125.81	₹62,905.00
1,000+	₹122.92	₹1,22,920.00

Quantity (min 1)

1 × ₹180.50

₹180.50

excl. GST

₹212.99 incl. 18% GST

Need volume or a scheduled delivery? Request a quote

Dispatch in 7–10 working days
GST invoice with every order
Standard pack: 3,000 per reel

MCP3421A0T-E/CH

₹180.50 for 1 + GST

Specifications

Operating Temperature: -40℃~+125℃
Interface: I2C
Quiescent Current (Iq): 145uA
Voltage - Supply: 2.7V~5.5V
Number of Channels: 1
Voltage Reference: Built-in
Clock/Oscillator: Built-in
Features: Power-on reset;Soft reset
Resolution(Bits): 3.75Hz;18
ADC architecture: Sigma-Delta
Programmable Gain: Support

Packaging & compliance

RoHS: ROHS3 Compliant
Lifecycle: Active
ECCN: EAR99
Packaging: Tape & Reel (TR)
Standard pack: 3,000 / Reel
Sold per: Piece
Minimum order: 1
Unit weight: 0.043 g

Overview

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 ±2.048 V differentially (Δvoltage = 4.096 V). The device uses a two-wire I²C compatible serial interface and operates from a single 2.7V to 5.5V power supply. The 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. It has an on-board programmable gain amplifier (PGA). The user can select the PGA gain of ×1, ×2, ×4, or ×8 before the analog-to-digital conversion takes place. This allows the 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 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.

Applications

Portable Instrumentation
Weigh Scales and Fuel Gauges
Temperature Sensing with RTD, Thermistor, and Thermocouple
Bridge Sensing for Pressure, Strain, and Force.

Key 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/℃
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) - 15 SPS (16 bits) - 60 SPS (14 bits) - 240 SPS (12 bits)
One-Shot or Continuous Conversion Options
Low current consumption: - 145 μA typical (VDD = 3Vs, Continuous Conversion) - 39 μA typical (VDD = 3Vs, 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℃ to 125℃

Alternatives

Similar parts — check the datasheet before substituting.

	Manufacturer	Package	Stock	Price from (excl. GST)	Action
MCP3421A1T-E/CH#C116032MICROCHIP · SOT-23-6	MICROCHIP	SOT-23-6	306	₹410.85 · 306 in stock	View
MCP3421A2T-E/CH#C143840MICROCHIP · SOT-23-6	MICROCHIP	SOT-23-6	1	₹596.40 · 1 in stock	View
MCP3421A3T-E/CH#C625478MICROCHIP · SOT-23-6	MICROCHIP	SOT-23-6	On request	Price on request	Quote