MCP3021
DC ELECTRICAL SPECIFICATIONS (CONTINUED)
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
3).
Parameters
Input leakage current
Output leakage current
Pin capacitance
(all inputs/outputs)
Bus Capacitance
Power Requirements
Operating Voltage
Conversion Current
Standby Current
Active bus current
Conversion Rate
Conversion Time
Analog Input Acquisition Time
Sample Rate
Note 1:
2:
3:
4:
5:
t
CONV
t
ACQ
f
SAMP
—
—
—
8.96
1.12
—
—
—
22.3
µs
µs
ksps
f
SCL
= 400 kHz (Note
V
DD
I
DD
I
DDS
I
DDA
2.7
—
—
—
—
175
0.005
—
5.5
250
1
120
V
µA
µA
µA
SDA, SCL = V
DD
Sym
I
LI
I
LO
C
IN
,
C
OUT
C
B
Min
-1
-1
—
—
Typ
—
—
—
—
Max
+1
+1
10
400
Units
µA
µA
pF
pF
Conditions
V
IN
= V
SS
to V
DD
V
OUT
= V
SS
to V
DD
T
AMB
= 25°C, f = 1 MHz;
SDA drive low, 0.4V
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.
TEMPERATURE SPECIFICATIONS
Electrical Characteristics:
All parameters apply across the operating voltage range.
Parameters
Temperature Ranges
Extended Temperature Range
Operating Temperature Range
Storage Temperature Range
Thermal Package Resistances
Thermal Resistance, 5L-SOT23A
θ
JA
—
256
—
°C/W
T
A
T
A
T
A
-40
-40
-65
—
—
—
+125
+125
+150
°C
°C
°C
Symbol
Min
Typ
Max
Units
Conditions
2003 Microchip Technology Inc.
DS21805A-page 3
MICROCHIP [ MICROCHIP TECHNOLOGY ]
