MCP3021
1.0
ELECTRICAL
CHARACTERISTICS
PIN FUNCTION TABLE
Name
V
DD
V
SS
AIN
SDA
SCL
Ground
Analog Input
Serial Data In/Out
Serial Clock In
Function
+2.7V to 5.5V Power Supply
Absolute Maximum Ratings †
V
DD
...................................................................................7.0V
Analog input pin w.r.t. V
SS
.......... ............. -0.6V to V
DD
+0.6V
SDA and SCL pins w.r.t. V
SS
........... .........-0.6V to V
DD
+1.0V
Storage temperature .....................................-65°C to +150°C
Ambient temp. with power applied ................-65°C to +125°C
Maximum Junction Temperature .......... .........................150°C
ESD protection on all pins (HBM) ......... ........................≥ 4 kV
†
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 list-
ings of this specification is not implied. Exposure to maximum
rating conditions for extended periods may affect device reli-
ability.
DC ELECTRICAL SPECIFICATIONS
Electrical Characteristics:
Unless otherwise noted, all parameters apply at V
DD
= 5.0V, V
SS
= GND, R
PU
= 2 kΩ
T
A
= -40°C to +85°C, I
2
C Fast Mode Timing: f
SCL
= 400 kHz (Note
Parameters
DC Accuracy
Resolution
Integral Nonlinearity
Differential Nonlinearity
Offset Error
Gain Error
Dynamic Performance
Total Harmonic Distortion
Signal to Noise and Distortion
Spurious Free Dynamic Range
Analog Input
Input Voltage Range
Leakage Current
SDA/SCL (open-drain output)
Data Coding Format
High-level input voltage
Low-level input voltage
Low-level output voltage
Hysteresis of Schmitt trigger inputs
Note 1:
2:
3:
4:
5:
V
IH
V
IL
V
OL
V
HYST
—
—
—
Straight Binary
0.7 V
DD
—
—
—
0.05V
DD
—
0.3 V
DD
0.4
—
V
V
V
V
I
OL
= 3 mA, R
PU
= 1.53 kΩ
f
SCL
= 400 kHz only
V
SS
-0.3
-1
—
—
V
DD
+0.3
+1
V
µA
2.7V
≤
V
DD
≤
5.5V
THD
SINAD
SFDR
—
—
—
-70
60
74
—
—
—
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
—
—
—
—
10
±0.25
±0.25
±0.75
-1
±1
±1
±3
±3
bits
LSB
LSB
LSB
LSB
No missing codes
Sym
Min
Typ
Max
Units
Conditions
Sample time is the time between conversions after the address byte has been sent to the converter. Refer
to Figure 5-6.
This parameter is periodically sampled and not 100% tested.
R
PU
= Pull-up resistor on SDA and SCL.
SDA and SCL = V
SS
to V
DD
at 400 kHz.
t
ACQ
and t
CONV
are dependent on internal oscillator timing. See Figure 5-5 and Figure 5-6 for relation to
SCL.
DS21805A-page 2
2003 Microchip Technology Inc.
MICROCHIP [ MICROCHIP TECHNOLOGY ]
