Datasheet

 1998-2011 Microchip Technology Inc. DS21290F-page 3
MCP3201
1.0 ELECTRICAL
CHARACTERISTICS
1.1 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
ESD protection on all pins (HBM) .................................> 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
operational listings of this specification is not implied.
Exposure to maximum rating conditions for extended periods
may affect device reliability.
ELECTRICAL CHARACTERISTICS
Electrical Specifications: All parameters apply at V
DD
= 5V, V
SS
= 0V, V
REF
= 5V, T
A
= -40°C to +85°C, f
SAMPLE
= 100 ksps, and
fCLK = 16*f
SAMPLE
, unless otherwise noted.
Parameter Sym Min Typ Max Units Conditions
Conversion Rate:
Conversion Time t
CONV
— — 12 clock
cycles
Analog Input Sample Time t
SAMPLE
1.5 clock
cycles
Throughput Rate f
SAMPLE
— — 100
50
ksps
ksps
V
DD
= V
REF
= 5V
V
DD
= V
REF
= 2.7V
DC Accuracy:
Resolution 12 bits
Integral Nonlinearity INL —
—
±0.75
±1
±1
±2
LSB
LSB
MCP3201-B
MCP3201-C
Differential Nonlinearity DNL — ±0.5 ±1 LSB No missing codes over
temperature
Offset Error — ±1.25 ±3 LSB
Gain Error — ±1.25 ±5 LSB
Dynamic Performance:
Total Harmonic Distortion THD — -82 — dB V
IN = 0.1V to 4.9V@1 kHz
Signal to Noise and Distortion
(SINAD)
SINAD — 72 — dB V
IN = 0.1V to 4.9V@1 kHz
Spurious Free Dynamic Range SFDR — 86 — dB V
IN = 0.1V to 4.9V@1 kHz
Reference Input:
Voltage Range 0.25 — V
DD
VNote 2
Current Drain —
—
100
.001
150
3
µA
µA CS = V
DD
= 5V
Analog Inputs:
Input Voltage Range (IN+) IN+ IN- — V
REF
+IN- V
Input Voltage Range (IN-) IN- V
SS
-100 V
SS
+100 mV
Leakage Current — 0.001 ±1 µA
Switch Resistance R
SS
— 1K — W See Figure 4-1
Sample Capacitor C
SAMPLE
— 20 — pF See Figure 4-1
Digital Input/Output:
Data Coding Format Straight Binary
High Level Input Voltage V
IH
0.7 V
DD
—— V
Low Level Input Voltage V
IL
— — 0.3 V
DD
V
Note 1: This parameter is established by characterization and not 100% tested.
2: See graph that relates linearity performance to V
REF
level.
3: Because the sample cap will eventually lose charge, effective clock rates below 10 kHz can affect linearity performance,
especially at elevated temperatures. See Section 6.2 “Maintaining Minimum Clock Speed” for more information.