MCP3001_07 Datasheet, PDF (1/28 Pages) Microchip Technology – 2.7V 10 BIT A/D CONVERTER WITH SPI SERIAL INTERFACE

MCP3001
2.7V 10-Bit A/D Converter with SPI™ Serial Interface
Features
• 10-bit resolution
• ±1 LSB max DNL
• ±1 LSB max INL
• On-chip sample and hold
• SPI™ serial interface (modes 0,0 and 1,1)
• Single supply operation: 2.7V - 5.5V
• 200 ksps sampling rate at 5V
• 75 ksps sampling rate at 2.7V
• Low power CMOS technology
- 5 nA typical standby current, 2 µA max
- 500 µA max active current at 5V
• Industrial temp range: -40°C to +85°C
• 8-pin PDIP, SOIC, MSOP and TSSOP packages
Applications
• Sensor Interface
• Process Control
• Data Acquisition
• Battery Operated Systems
Description
The Microchip Technology Inc. MCP3001 is a succes-
sive approximation 10-bit A/D converter (ADC) with on-
board sample and hold circuitry. The device provides a
single pseudo-differential input. Differential Nonlinear-
ity (DNL) and Integral Nonlinearity (INL) are both spec-
ified at ±1 LSB max. Communication with the device is
done using a simple serial interface compatible with the
SPI protocol. The device is capable of sample rates up
to 200 ksps at a clock rate of 2.8 MHz. The MCP3001
operates over a broad voltage range (2.7V - 5.5V).
Low current design permits operation with a typical
standby current of only 5 nA and a typical active current
of 400 µA. The device is offered in 8-pin PDIP, MSOP,
TSSOP and 150 mil SOIC packages.
Package Types
PDIP, MSOP, SOIC, TSSOP
V_REF 1
IN+ 2
IN– 3
V_SS 4
8 V_DD
7 CLK
6 D_OUT
5 CS/SHDN
Illustration not to scale
Functional Block Diagram
V_REF
V_DD V_SS
IN+ Sample
and
IN-
Hold
DAC
Comparator
10-Bit SAR
Control Logic
Shift
Register
CS/SHDN CLK
D_OUT
SPI™ is a trademark of Motorola Inc.
© 2007 Microchip Technology Inc.
DS21293C-page 1