MCP3550 Microchip Technology, MCP3550 Datasheet - Page 4

• Manufacturer Part Number: MCP3550
• Description: Low-Power, Single-Channel 22-Bit Delta-Sigma ADCs
• Manufacturer: Microchip Technology

MCP3550/1/3
DC CHARACTERISTICS (CONTINUED)
TEMPERATURE CHARACTERISTICS
SERIAL TIMINGS
DS21950D-page 4
Electrical Specifications: Unless otherwise indicated, all parameters apply at -40°C ≤ T
V
applies to entire MCP3550/1/3 family.
Voltage Output Low (SDO/RDY)
Input leakage Current
(CS, SCK)
Internal Pin Capacitance
(CS, SCK, SDO/RDY)
Note 1:
Electrical Specifications: Unless otherwise indicated
Temperature Ranges
Specified Temperature Range
Operating Temperature Range
Thermal Package Resistances
Thermal Resistance, 8L-MSOP
Thermal Resistance, 8L-SOIC
Electrical Specifications: Unless otherwise indicated, all parameters apply at -40°C ≤ T
V
CLK Frequency
CLK High
CLK Low
CLK fall to output data valid
CS low to indicate RDY state
CS minimum low time
RDY flag setup time
CS rise to output disable
CS disable time
Power-up to CS LOW
CS High to Shutdown Mode
REF
DD
= 3.3V or 5.0V, SDO load = 50 pF.
= 2.5V. V
2:
3:
4:
5:
6:
Parameters
Parameters
Parameters
This parameter is established by characterization and not 100% tested.
INL is the difference between the endpoints line and the measured code at the center of the quantization band.
This current is due to the leakage current and the current due to the offset voltage between V
Input impedance is inversely proportional to clock frequency; typical values are for the MCP3550/1 device. V
Characterized by design, but not tested.
Rejection performance depends on internal oscillator accuracy; see Section 4.0 “Device Overview” for more informa-
tion on oscillator and digital filter design. MCP3550/1 device rejection specifications characterized from 49 to 61 Hz.
IN
+ = V
IN
- = V
CM
= V
REF
t
t
CSHSD
Sym
Sym
PUCSL
/2. All ppm units use 2*V
t
t
f
t
t
θ
θ
t
RDY
CSD
SCK
t
CSL
t
Sym
C
T
T
t
DIS
DO
V
LO
SU
HI
JA
JA
I
A
A
INT
OL
LI
Min
Min
-40
-40
90
90
50
20
20
90
—
—
—
—
—
0
0
Min
—
—
-1
Typ
206
163
Typ
10
10
—
—
—
—
—
—
—
—
—
—
—
Typ
REF
—
—
5
as full-scale range. Unless otherwise noted, specification
+125
Max
Max
+85
90
50
—
—
—
—
—
—
—
—
—
—
5
Max
0.4
—
1
Units
Units
°C/W
°C/W
MHz
°C
°C
ns
ns
ns
ns
ns
ns
ns
ns
µs
µs
Units
µA
pF
V
A
≤ +85°C, V
V
Note 1
© 2007 Microchip Technology Inc.
OH
A
= -1 mA, V
DD
≤ +85°C,
Conditions
Conditions
= 2.7V or 5.0V.
IN
+ and V
Conditions
DD
= 5.0V
IN
-.
REF
= 5V.