ADC12132CIMSA National Semiconductor, ADC12132CIMSA Datasheet - Page 9

• Manufacturer Part Number: ADC12132CIMSA
• Description: IC ADC 12BIT 20-SSOP
• Manufacturer: National Semiconductor

Specifications of ADC12132CIMSA

• Number Of Bits: 12
• Sampling Rate (per Second): 114k
• Data Interface: NSC MICROWIRE™, Serial
• Number Of Converters: 4
• Power Dissipation (max): 33mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 20-SSOP (0.200", 5.30mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Other names: *ADC12132CIMSA

t
t
t
t
t
t
t
t
t
t
t
t
t
t
C
C
HPU
SPU
ACC
SET-UP
DELAY
1H
HDI
SDI
HDO
DDO
RDO
FDO
CD
SD
IN
OUT
AC Electrical Characteristics
The following specifications apply for (V
common-mode voltage) or (V
voltage), V
MHz, and 10 (t
T
Note 1: Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is
functional, but do not guarantee specific performance limits. For guaranteed specifications and test conditions, see the Electrical Characteristics. The guaranteed
specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test
conditions.
Note 2: All voltages are measured with respect to GND, unless otherwise specified.
Note 3: When the input voltage (V
The 120 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 30 mA to four.
Note 4: The maximum power dissipation must be derated at elevated temperatures and is dictated by T
allowable power dissipation at any temperature is P
device, T
Note 5: The human body model is a 100 pF capacitor discharged through a 1.5 kΩ resistor into each pin.
Note 6: See AN450 “Surface Mounting Methods and Their Effect on Product Reliability” or the section titled “Surface Mount” found in any post 1986 National
Semiconductor Linear Data Book for other methods of soldering surface mount devices.
Note 7: Two on-chip diodes are tied to each analog input through a series resistor as shown below. Input voltage magnitude up to 5V above V
GND will not damage this device. However, errors in conversion can occur (if these diodes are forward biased by more than 50 mV) if the input voltage magnitude
of selected or unselected analog input go above V
≤
Symbol
, t
A
4.55 V
0H
= T
J
DC
J
= 25°C. (Note 17)
max = 150°C.
to ensure accurate conversions.
REF
Hardware Power-Up Time, Time from PD
Falling Edge to EOC Rising Edge
Software Power-Up Time, Time from Serial
Data Clock Falling Edge to EOC Rising Edge
Access Time Delay from CS Falling Edge to
DO Data Valid
Set-Up Time of CS Falling Edge to Serial Data
Clock Rising Edge
Delay from SCLK Falling Edge to CS Falling
Edge
Delay from CS Rising Edge to DO TRI-STATE R
DI Hold Time from Serial Data Clock Rising
Edge
DI Set-Up Time from Serial Data Clock Rising
Edge
DO Hold Time from Serial Data Clock Falling
Edge
Delay from Serial Data Clock Falling Edge to
DO Data Valid
DO Rise Time, TRI-STATE to High DO Rise
Time, Low to High
DO Fall Time, TRI-STATE to Low DO Fall
Time, High to Low
Delay from CS Falling Edge to DOR Falling
Edge
Delay from Serial Data Clock Falling Edge to
DOR Rising Edge
Capacitance of Logic Inputs
Capacitance of Logic Outputs
− = 0V, 12-bit + sign conversion mode, source impedance for analog inputs, V
CK
) acquisition time unless otherwise specified. Boldface limits apply for T
(Continued)
IN
) at any pin exceeds the power supplies (V
+
Parameter
= V
A
+ = V
+
A
D
= V
+ or below GND by more than 50 mV. As an example, if V
D
+ = +3.3V, V
= (T
A
+ = V
J
max − T
D
+ = +5V, V
A
)/θ
REF
JA
+ = +2.5V and fully-differential input with fixed 1.250V common-mode
or the number given in the Absolute Maximum Ratings, whichever is lower. For this
R
R
R
L
L
L
L
= 3k, C
= 3k, C
= 3k, C
= 3k, C
REF
IN
9
< GND or V
+ = +4.096V, and fully-differential input with fixed 2.048V
Conditions
L
L
L
L
= 100 pF
= 100 pF
= 100 pF
= 100 pF
IN
> V
A
+ or V
J
max, θ
D
+), the current at that pin should be limited to 30 mA.
Typical (Note
JA
A
+ is 4.5 V
and the ambient temperature, T
A
REF
= T
500
500
10)
25
70
35
50
10
10
15
15
45
45
20
20
0
5
5
− and V
J
DC
= T
, full-scale input voltage must be
MIN
Limits (Note
REF
to T
+
700
700
100
11)
60
50
15
10
65
90
40
40
40
40
80
80
≤
MAX
5
5
25Ω, f
; all other limits
A
A
+ or 5V below
. The maximum
www.national.com
CK
= f
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
ns (max)
μs (max)
μs (max)
(Limits)
ns (min)
ns (min)
ns (min)
ns (min)
Units
SK
pF
pF
= 5