MCP3008-I/P Microchip Technology, MCP3008-I/P Datasheet - Page 15

• Manufacturer Part Number: MCP3008-I/P
• Description: IC ADC 10BIT 2.7V 8CH SPI 16-DIP
• Manufacturer: Microchip Technology

Specifications of MCP3008-I/P

• Data Interface: Serial, SPI™
• Number Of Bits: 10
• Sampling Rate (per Second): 200k
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Through Hole
• Package / Case: 16-DIP (0.300", 7.62mm)
• Resolution (bits): 10bit
• Sampling Rate: 200kSPS
• Input Channel Type: Pseudo Differential, Single Ended
• Supply Voltage Range - Analog: 2.7V To 5.5V
• Supply Current: 425µA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

3.0
The descriptions of the pins are listed in
Additional descriptions of the device pins follows.
TABLE 3-1:
3.1
Digital ground connection to internal digital circuitry.
3.2
Analog ground connection to internal analog circuitry.
3.3
Analog inputs for channels 0 - 7, respectively, for the
multiplexed inputs. Each pair of channels can be
programmed to be used as two independent channels
in single-ended mode or as a single pseudo-differential
input where one channel is IN+ and one channel is IN.
See Section 4.1 “Analog Inputs”, “Analog Inputs”,
and Section 5.0 “Serial Communication”, “Serial
Communication”, for information on programming the
channel configuration.
3.4
The SPI clock pin is used to initiate a conversion and
clock out each bit of the conversion as it takes place.
See Section 6.2 “Maintaining Minimum Clock
Speed”, “Maintaining Minimum Clock Speed”, for
constraints on clock speed.
© 2008 Microchip Technology Inc.
PDIP, SOIC,
MCP3004
TSSOP
5,6
10
12
13
14
11
1
2
3
4
–
–
–
–
7
8
9
PIN DESCRIPTIONS
Digital Ground (DGND)
Analog Ground (AGND)
Analog inputs (CH0 - CH7)
Serial Clock (CLK)
PIN FUNCTION TABLE
PDIP, SOIC
MCP3008
10
11
12
13
14
15
16
1
2
3
4
5
6
7
8
9
–
CS/SHDN
Symbol
DGND
AGND
D
V
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CLK
V
Table
D
NC
OUT
REF
DD
IN
3-1.
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Analog Input
Digital Ground
Chip Select/Shutdown Input
Serial Data In
Serial Data Out
Serial Clock
Analog Ground
Reference Voltage Input
+2.7V to 5.5V Power Supply
No Connection
3.5
The SPI port serial data input pin is used to load
channel configuration data into the device.
3.6
The SPI serial data output pin is used to shift out the
results of the A/D conversion. Data will always change
on the falling edge of each clock as the conversion
takes place.
3.7
The CS/SHDN pin is used to initiate communication
with the device when pulled low. When pulled high, it
will end a conversion and put the device in low-power
standby. The CS/SHDN pin must be pulled high
between conversions.
Serial Data Input (D
Serial Data Output (D
Chip Select/Shutdown (CS/SHDN)
MCP3004/3008
Description
IN
DS21295D-page 15
)
OUT
)