Microchip Technology MCP3421A2T-E/CH
- Part Number:
- MCP3421A2T-E/CH
- Manufacturer:
- Microchip Technology
- Ventron No:
- 3008699-MCP3421A2T-E/CH
- Description:
- IC ADC 18BIT 3.75SPS 1CH SOT23-6
- Datasheet:
- MCP3421A2T-E/CH
Description
The MCP3421 is a single-channel, low-noise, high-accuracy AΣ 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 (A 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.
Features
18-bit AΣ 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: 15 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)
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-3V, Continuous Conversion)
39 μA 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
Applications
Portable Instrumentation
Weigh Scales and Fuel Gauges
Temperature Sensing with RTD, Thermistor, and Thermocouple
Bridge Sensing for Pressure, Strain, and Force
The MCP3421 is a single-channel, low-noise, high-accuracy AΣ 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 (A 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.
Features
18-bit AΣ 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: 15 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)
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-3V, Continuous Conversion)
39 μA 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
Applications
Portable Instrumentation
Weigh Scales and Fuel Gauges
Temperature Sensing with RTD, Thermistor, and Thermocouple
Bridge Sensing for Pressure, Strain, and Force
Microchip Technology MCP3421A2T-E/CH technical specifications, attributes, parameters and parts with similar specifications to Microchip Technology MCP3421A2T-E/CH.
- Factory Lead Time2 Weeks
- MountSurface Mount
- Mounting TypeSurface Mount
- Package / CaseSOT-23-6
- Number of Pins6
- Operating Temperature-40°C~125°C
- PackagingTape & Reel (TR)
- Published2007
- JESD-609 Codee3
- FeaturePGA
- Pbfree Codeyes
- Part StatusActive
- Moisture Sensitivity Level (MSL)1 (Unlimited)
- Number of Terminations6
- ECCN CodeEAR99
- Terminal FinishMatte Tin (Sn)
- SubcategoryAnalog to Digital Converters
- Terminal PositionDUAL
- Terminal FormGULL WING
- Peak Reflow Temperature (Cel)260
- Number of Functions1
- Supply Voltage5V
- Terminal Pitch0.95mm
- Reflow Temperature-Max (s)40
- Base Part NumberMCP3421
- Pin Count6
- PolarityBipolar
- Power Supplies5V
- ConfigurationPGA-ADC
- Number of Channels1
- Max Supply Voltage5.5V
- Min Supply Voltage2.7V
- Number of Bits18
- Input TypeDifferential
- ArchitectureSigma-Delta
- Converter TypeADC, DELTA-SIGMA
- Reference TypeInternal
- Data InterfaceI2C
- Resolution2.25 B
- Sampling Rate3.75 sps
- Voltage - Supply, Analog2.7V~5.5V
- Voltage - Supply, Digital2.7V~5.5V
- Number of Analog In Channels1
- Sampling Rate (Per Second)3.75
- Output Bit Code2'S COMPLEMENT BINARY
- Linearity Error-Max (EL)0.0035%
- Conversion Rate3.75 sps
- Analog Input Voltage-Max2.048V
- Output FormatSERIAL
- Analog Input Voltage-Min-2.048V
- Height1.3mm
- Length3.1mm
- Width3.2mm
- Radiation HardeningNo
- RoHS StatusROHS3 Compliant
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