MCP3304-BI/SL Microchip Technology, MCP3304-BI/SL Datasheet - Page 15

• Manufacturer Part Number: MCP3304-BI/SL
• Description: ADC Single SAR 100KSPS 12-Bit+Sign Serial 16-Pin SOIC N Tube
• Manufacturer: Microchip Technology

Specifications of MCP3304-BI/SL

• Package: 16SOIC N
• Resolution: 12+Sign Bit
• Sampling Rate: 100 KSPS
• Architecture: SAR
• Number Of Adcs: 1
• Number Of Analog Inputs: 8|4
• Digital Interface Type: Serial (SPI)
• Input Type: Voltage
• Polarity Of Input Voltage: Bipolar
• Number Of Bits: 13
• Sampling Rate (per Second): 100k
• Data Interface: Serial, SPI™
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.154", 3.90mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: MCP3304BI/SL

3.0
The descriptions of the pins are listed in
TABLE 3-1:
3.1
Analog input channels. These pins have an absolute
voltage range of V
differential input range is defined as the absolute value
of (IN+) - (IN-). This difference can not exceed the
value of V
occur.
3.2
Ground connection to internal digital circuitry. To
ensure accuracy this pin must be connected to the
same ground as AGND. If an analog ground plane is
available, it is recommended that this device be tied to
the analog ground plane in the circuit. See Section 5.6
“Layout Considerations” for more information
regarding circuit layout.
3.3
The CS/SHDN pin is used to initiate communication
with the device when pulled low. This pin will end a
conversion and put the device in low-power standby
when pulled high. The CS/SHDN pin must be pulled
high between conversions and cannot be tied low for
multiple conversions. See
communication protocol.
© 2008 Microchip Technology Inc.
PDIP, SOIC,
MCP3302
TSSOP
5, 6
10
11
12
13
14
—
—
—
—
1
2
3
4
7
8
9
PIN DESCRIPTIONS
Analog Inputs (CH0-CH7)
Digital Ground (DGND)
Chip Select/Shutdown (CS/SHDN)
REF
- 1 LSB or digital code saturation will
SS
PIN FUNCTION TABLE
PDIP, SOIC
MCP3304
- 0.3V to V
10
11
12
13
14
15
16
—
1
2
3
4
5
6
7
8
9
DD
Figure 6-2
+ 0.3V. The full scale
CS/SHDN
Table
Symbol
DGND
AGND
D
V
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
CLK
V
D
NC
OUT
REF
for serial
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
3.4
The SPI port serial data input pin is used to clock in
input channel configuration data. Data is latched on the
rising edge of the clock. See
communication protocol.
3.5
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. See
protocol.
3.6
The SPI clock pin is used to initiate a conversion and to
clock out each bit of the conversion as it takes place.
See Section 5.2 “Driving the Analog Input” for
constraints on clock speed. See
communication protocol.
Serial Data Input (D
Serial Data Output (D
Serial Clock (CLK)
Description
Figure 6-2
MCP3302/04
for serial communication
Figure 6-2
Figure 6-2
IN
DS21697E-page 15
)
OUT
)
for serial
for serial