MCP3204/3208
1.0
ELECTRICAL
CHARACTERISTICS
PIN FUNCTION TABLE
Name
V
DD
DGND
AGND
CH0-CH7
CLK
D
IN
D
OUT
CS/SHDN
V
REF
Function
+2.7V to 5.5V Power Supply
Digital Ground
Analog Ground
Analog Inputs
Serial Clock
Serial Data In
Serial Data Out
Chip Select/Shutdown Input
Reference Voltage Input
Absolute Maximum Ratings*
V
DD
...................................................................................7.0V
All inputs and outputs w.r.t. V
SS
............... -0.6V to V
DD
+0.6V
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
*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.
ELECTRICAL SPECIFICATIONS
Electrical Characteristics:
Unless otherwise noted, all parameters apply at V
DD
= 5V, V
SS
= 0V, V
REF
= 5V,
T
AMB
= -40°C to +85°C,f
SAMPLE
= 100 ksps and f
CLK
= 20*f
SAMPLE
Parameters
Conversion Rate
Conversion Time
Analog Input Sample Time
Throughput Rate
DC Accuracy
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error
Dynamic Performance
Total Harmonic Distortion
Signal to Noise and Distortion
(SINAD)
Spurious Free Dynamic
Range
Reference Input
Voltage Range
Current Drain
0.25
—
—
—
100
0.001
V
DD
150
3.0
V
µA
µA
CS = V
DD
= 5V
—
—
—
-82
72
86
—
—
—
dB
dB
dB
V
IN
= 0.1V to 4.9V@1 kHz
V
IN
= 0.1V to 4.9V@1 kHz
V
IN
= 0.1V to 4.9V@1 kHz
INL
DNL
—
—
—
—
—
12
±0.75
±1.0
±0.5
±1.25
±1.25
±1
±2
±1
±3
±5
bits
LSB
LSB
LSB
LSB
MCP3204/3208-B
MCP3204/3208-C
No missing codes
over-temperature
t
CONV
t
SAMPLE
f
SAMPLE
—
—
—
—
1.5
—
—
100
50
12
clock
cycles
clock
cycles
ksps
ksps
V
DD
= V
REF
= 5V
V
DD
= V
REF
= 2.7V
Sym
Min
Typ
Max
Units
Conditions
Note 1:
This parameter is established by characterization and not 100% tested.
2:
See graphs that relate linearity performance to V
REF
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 TECHNOLOGY ]
