2.7V Dual Channel 10-Bit A/D Converter with SPI Serial Interface | Heisener Electronics
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2.7V Dual Channel 10-Bit A/D Converter with SPI Serial Interface

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投稿日: 2023-03-16, Microchip Technology

The MCP3002 is a continuous approximate 10-bit ADC with onboard sampling and holding circuits. Available in 8-pin MSOP, PDIP, TSSOP and 150 mil SOIC packages. Programmable to provide a pseudo-differential input pair or double single-ended input. Both differential nonlinearity (DNL) and integral nonlinearity (INL) are specified at ±1 LSB. Communication with the device is done using a simple serial interface compatible with the SPI protocol.

The MCP3002 has a conversion rate of 200 ksps at 5V and 75 ksps at 2.7V. The converter operates at a wide voltage range from 2.7V to 5.5V. The low-current design allows for a typical standby current of 5 nA and a typical active current of 375µa.

MCP3002 Package Types


MCP3002 Functional Block Diagram


Serial Timing



● 10-bit resolution

● ±1 LSB maximum DNL

● ±1 LSB maximum INL

● Analog inputs programmable as single-ended or pseudo-differential pairs

● On-chip sample and hold

● SPI serial interface (modes 0,0 and 1,1)

● Single supply operation: 2.7V-5.5V

● 200 ksps max sampling rate at VDD = 5V

● 75 ksps max sampling rate at VDD = 2.7V

● Low power CMOS technology:

  - 5 nA typical standby current, 2 µA maximum

  -550 µA maximum active current at 5V

● Industrial temperature range: -40°C to +85°C

● 8-pin MSOP, PDIP, SOIC and TSSOP packages


● Sensor Interface

● Process Control

● Data Acquisition

● Battery Operated Systems