MCP3221 Microchip Technology, MCP3221 Datasheet - Page 3

• Manufacturer Part Number: MCP3221
• Description: Low Power 12-Bit A/D Converter With I2C Interface
• Manufacturer: Microchip Technology

DC ELECTRICAL SPECIFICATIONS (CONTINUED)
TEMPERATURE SPECIFICATIONS
Electrical Characteristics: Unless otherwise noted, all parameters apply at V
T
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:
Electrical Characteristics: Unless otherwise noted, all parameters apply at V
Temperature Ranges
Industrial Temperature Range
Extended Temperature Range
Operating Temperature Range
Storage Temperature Range
Thermal Package Resistances
Thermal Resistance, 5L-SOT23A
AMB
2003 Microchip Technology Inc.
= -40°C to +85°C, I
2:
3:
4:
5:
“Sample time” is the time between conversions once the address byte has been sent to the converter.
Refer to Figure 5-6.
This parameter is periodically sampled and not 100% tested.
R
SDA and SCL = V
t
SCL.
Parameters
ACQ
PU
Parameters
= Pull-up resistor on SDA and SCL.
and t
CONV
2
C Fast Mode Timing: f
are dependent on internal oscillator timing. See Figure 5-5 and Figure 5-6 for relation to
SS
to V
DD
t
f
C
Sym
I
I
CONV
t
SAMP
V
C
I
DDS
DDA
ACQ
at 400 kHz.
I
C
I
OUT
DD
LO
DD
LI
IN
B
,
Symbol
T
T
T
T
JA
A
A
A
A
SCL
Min
2.7
—
—
—
—
—
—
—
—
-1
-1
= 400 kHz (Note 3).
Min
-40
-40
-40
-65
—
0.005
8.96
1.12
Typ
175
—
—
—
—
—
—
—
Typ
256
—
—
—
—
Max
22.3
400
250
120
5.5
+1
+1
10
—
—
1
+125
+125
+150
Max
+85
—
DD
DD
Units
ksps
= 5.0V, V
= 5.0V, V
µA
µA
µA
µA
µA
pF
pF
µs
µs
V
Units
°C/W
°C
°C
°C
°C
V
V
T
(Note 2)
SDA drive low, 0.4V
SDA, SCL = V
Note 4
Note 5
Note 5
f
AMB
SCL
IN
OUT
SS
SS
= 0.1 V
MCP3221
= GND, R
= 400 kHz (Note 1)
= GND.
= 25°C, f = 1 MHz;
= 0.1 V
Conditions
Conditions
DD
DS21732B-page 3
SS
and 0.9 V
DD
PU
and 0.9 V
= 2 k
DD
DD