MCP3004/3008
2.7V 4-Channel/8-Channel 10-Bit A/D Converters
with SPI™ Serial Interface
Features
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10-bit resolution
± 1 LSB max DNL
± 1 LSB max INL
4 (MCP3004) or 8 (MCP3008) input channels
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 V
DD
= 5V
75 ksps max. sampling rate at V
DD
= 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
Available in PDIP, SOIC and TSSOP packages
Description
The Microchip Technology Inc. MCP3004/3008
devices are successive approximation 10-bit Analog-
to-Digital (A/D) converters with on-board sample and
hold circuitry. The MCP3004 is programmable to pro-
vide two pseudo-differential input pairs or four single-
ended inputs. The MCP3008 is programmable to pro-
vide four pseudo-differential input pairs or eight single-
ended inputs. Differential Nonlinearity (DNL) and Inte-
gral Nonlinearity (INL) are specified at ±1 LSB. Com-
munication with the devices is accomplished using a
simple serial interface compatible with the SPI protocol.
The devices are capable of conversion rates of up to
200 ksps. The MCP3004/3008 devices operate over a
broad voltage range (2.7V - 5.5V). Low current design
permits operation with typical standby currents of only
5 nA and typical active currents of 320 µA. The
MCP3004 is offered in 14-pin PDIP, 150 mil SOIC and
TSSOP packages, while the MCP3008 is offered in 16-
pin PDIP and SOIC packages.
Applications
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Sensor Interface
Process Control
Data Acquisition
Battery Operated Systems
Functional Block Diagram
V
DD
V
SS
V
REF
CH0
CH1
CH7*
14
13
12
11
10
9
8
V
DD
V
REF
AGND
CLK
D
OUT
D
IN
CS/SHDN
Sample
and
Hold
Control Logic
Package Types
PDIP, SOIC, TSSOP
CH0
CH1
CH2
CH3
NC
NC
DGND
1
2
3
4
5
6
7
Input
Channel
Max
DAC
Comparator
10-Bit SAR
MCP3004
Shift
Register
D
OUT
CS/SHDN D
IN
CLK
PDIP, SOIC
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
1
2
3
4
5
6
7
8
16
15
14
13
12
11
10
9
V
DD
V
REF
AGND
CLK
D
OUT
D
IN
CS/SHDN
DGND
*
Note:
Channels 4-7 available on MCP3008 Only
©
2007 Microchip Technology Inc.
MCP3008
DS21295C-page 1
MICROCHIP [ MICROCHIP TECHNOLOGY ]
