MCP3204/3208
1.0
ELECTRICAL
PIN FUNCTION TABLE
CHARACTERISTICS
Name
Function
Absolute Maximum Ratings*
VDD
+2.7V to 5.5V Power Supply
Digital Ground
DGND
AGND
CH0-CH7
CLK
V
...................................................................................7.0V
DD
Analog Ground
All inputs and outputs w.r.t. V ............... -0.6V to V +0.6V
SS
DD
Storage temperature .....................................-65°C to +150°C
Ambient temp. with power applied ................-65°C to +125°C
Soldering temperature of leads (10 seconds) .............+300°C
ESD protection on all pins.............................................> 4 kV
Analog Inputs
Serial Clock
DIN
Serial Data In
DOUT
Serial Data Out
*Notice: Stresses above those listed under "Maximum
Ratings" may cause permanent damage to the device. This is
a stress rating only and functional operation of the device at
those or any other conditions above those indicated in the
operation listings of this specification is not implied. Exposure
to maximum rating conditions for extended periods may affect
device reliability.
CS/SHDN
VREF
Chip Select/Shutdown Input
Reference Voltage Input
ELECTRICAL SPECIFICATIONS
Electrical Characteristics: Unless otherwise noted, all parameters apply at VDD = 5V, VSS = 0V, VREF = 5V,
AMB = -40°C to +85°C,fSAMPLE = 100 ksps and fCLK = 20*fSAMPLE
T
Parameters
Sym
Min
Typ
Max
Units
Conditions
Conversion Rate
Conversion Time
tCONV
—
—
12
clock
cycles
Analog Input Sample Time
Throughput Rate
tSAMPLE
fSAMPLE
1.5
clock
cycles
—
—
—
—
100
50
ksps VDD = VREF = 5V
ksps VDD = VREF = 2.7V
DC Accuracy
Resolution
12
bits
Integral Nonlinearity
INL
—
—
±0.75
±1.0
±1
±2
LSB MCP3204/3208-B
MCP3204/3208-C
Differential Nonlinearity
DNL
—
±0.5
±1
LSB No missing codes
over-temperature
Offset Error
—
—
±1.25
±1.25
±3
±5
LSB
LSB
Gain Error
Dynamic Performance
Total Harmonic Distortion
—
—
-82
72
—
—
dB VIN = 0.1V to 4.9V@1 kHz
dB VIN = 0.1V to 4.9V@1 kHz
Signal to Noise and Distortion
(SINAD)
Spurious Free Dynamic
Range
—
86
—
dB VIN = 0.1V to 4.9V@1 kHz
Reference Input
Voltage Range
Current Drain
0.25
—
VDD
V
Note 2
—
—
100
0.001
150
3.0
µA
µA CS = VDD = 5V
Note 1: This parameter is established by characterization and not 100% tested.
2: See graphs that relate linearity performance to VREF levels.
3: Because the sample cap will eventually lose charge, effective clock rates below 10 kHz can affect linearity
performance, particularly at elevated temperatures. See Section 6.2, “Maintaining Minimum Clock Speed”,
for more information.
DS21298D-page 2
© 2007 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
