MCP3202 Microchip Technology, MCP3202 Datasheet
MCP3202
Manufacturer Part Number
MCP3202
Description
2.7V Dual Channel 12-Bit A/D Converter with SPI Serial Interface
Manufacturer
Microchip Technology
Datasheet
1.MCP3202.pdf
(20 pages)
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FEATURES
• 12-bit resolution
• ±1 LSB max DNL
• ±1 LSB max INL (MCP3202-B)
• ±2 LSB max INL (MCP3202-C)
• Analog inputs programmable as single-ended or
• On-chip sample and hold
• SPI
• Single supply operation: 2.7V - 5.5V
• 100ksps max. sampling rate at V
• 50ksps max. sampling rate at V
• Low power CMOS technology
• Industrial temp range: -40°C to +85°C
• 8-pin PDIP SOIC and TSSOP packages
APPLICATIONS
• Sensor Interface
• Process Control
• Data Acquisition
• Battery Operated Systems
DESCRIPTION
The Microchip Technology Inc. MCP3202 is a succes-
sive approximation 12-bit Analog-to-Digital (A/D) Con-
verter with on-board sample and hold circuitry. The
MCP3202 is programmable to provide a single
pseudo-differential input pair or dual single-ended
inputs. Differential Nonlinearity (DNL) is specified at
±1 LSB, and Integral Nonlinearity (INL) is offered in
±1 LSB (MCP3202-B) and ±2 LSB (MCP3202-C) ver-
sions. Communication with the device is done using a
simple serial interface compatible with the SPI protocol.
The device is capable of conversion rates of up to
100ksps at 5V and 50ksps at 2.7V. The MCP3202
device operates over a broad voltage range (2.7V -
5.5V). Low current design permits operation with typi-
cal standby and active currents of only 500nA and
375µA, respectively. The MCP3202 is offered in 8-pin
PDIP, TSSOP and 150mil SOIC packages.
1999 Microchip Technology Inc.
pseudo-differential pairs
- 500nA typical standby current, 5µA max.
- 550µA max. active current at 5V
®
serial interface (modes 0,0 and 1,1)
2.7V Dual Channel 12-Bit A/D Converter
with SPI
DD
DD
= 2.7V
= 5V
®
Preliminary
Serial Interface
PACKAGE TYPES
FUNCTIONAL BLOCK DIAGRAM
PDIP
SOIC, TSSOP
CH0
CH1
CS/SHDN
CS/SHDN
Channel
Input
Mux
CH0
CH1
CH0
CH1
MCP3202
Sample
V
V
and
Hold
SS
SS
CS/SHDN
1
2
3
4
1
2
3
4
Control Logic
DAC
Comparator
8
7
6
5
8
7
6
5
D
IN
CLK
V
CLK
D
D
V
CLK
D
D
DD
OUT
IN
DD
OUT
IN
/V
DS21034A-page 1
/V
REF
12-Bit SAR
REF
Register
V
D
Shift
DD
OUT
V
SS
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