MCP3204-CI/ST Microchip Technology, MCP3204-CI/ST Datasheet - Page 20

• Manufacturer Part Number: MCP3204-CI/ST
• Description: IC ADC 12BIT 2.7V 4CH SPI14TSSOP
• Manufacturer: Microchip Technology

Specifications of MCP3204-CI/ST

• Data Interface: Serial, SPI™
• Number Of Bits: 12
• Sampling Rate (per Second): 100k
• Number Of Converters: 1
• Voltage Supply Source: Single Supply
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 14-TSSOP (0.173", 4.40mm Width)
• Resolution (bits): 12bit
• Sampling Rate: 100kSPS
• Input Channel Type: Pseudo Differential, Single Ended
• Supply Voltage Range - Analog: 2.7V To 5.5V
• Supply Current: 320µA
• Package: 14TSSOP
• Resolution: 12 Bit
• Architecture: SAR
• Number Of Adcs: 1
• Number Of Analog Inputs: 4|2
• Digital Interface Type: Serial (4-Wire, SPI)
• Input Type: Voltage
• Polarity Of Input Voltage: Unipolar
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

MCP3204/3208
FIGURE 5-1:
FIGURE 5-2:
DS21298E-page 20
CS
CLK
D
D
CS
CLK
D
D
IN
OUT
* After completing the data transfer, if further clocks are applied with CS low, the A/D converter will output zeros
indefinitely.
** t
high impedance node, leaving the CLK running to clock out LSB first data or zeroes.
* After completing the data transfer, if further clocks are applied with CS low, the A/D converter will output LSB
first data, followed by zeros indefinitely (see
** t
a high impedance node, leaving the CLK running to clock out the LSB-first data or zeros.
IN
OUT
DATA
DATA
: During this time, the bias circuit and the comparator power down while the reference input becomes a
: during this time, the bias current and the comparator power down while the reference input becomes
Start
Start
SGL/
DIFF
t
SUCS
HI-Z
D2
SGL/
DIFF
t
SUCS
HI-Z
Communication with the MCP3204 or MCP3208.
D1
Communication with MCP3204 or MCP3208 in LSB First Format.
D2
t
D0
SAMPLE
D1
Null
Bit
D0
t
(MSB)
SAMPLE
B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0 B1 B2 B3 B4 B5 B6 B7 B8 B9 B10B11
Null
Bit B11 B10 B9 B8 B7 B6 B5 B4 B3 B2 B1 B0*
Figure 5-2
t
CONV
t
CYC
Don’t Care
below).
t
CONV
Don’t Care
t
CYC
Power Down
t
© 2008 Microchip Technology Inc.
DATA
t
CSH
t
DATA
**
**
Start
t
CSH
HI-Z
t
SGL/
DIFF
CYC
*
D2
HI-Z