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LM12454CIV View Datasheet(PDF) - National ->Texas Instruments

Part NameDescriptionManufacturer
LM12454CIV 12-Bit + Sign Data Acquisition System with Self-Calibration National-Semiconductor
National ->Texas Instruments National-Semiconductor
LM12454CIV Datasheet PDF : 36 Pages
1 2 3 4 5 6 7 8 9 10 Next Last
DC Characteristics (Notes 6, 7, 8)
The following specifications apply to the LM12454, LM12458, and LM12H458 for VA+ = VD+ = 5V, VREF+ = 5V, VREF− = 0V,
fCLK = 8.0 MHz (LM12H454/8) or fCLK = 5.0 MHz (LM12458), and minimum acquisition time unless otherwise specified. Bold-
face limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25˚C.
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 11)
Units
CS = “1”
ID+
VD+ Supply Current
LM12454/8
LM12H458
0.55
1.0
mA (max)
0.55
1.2
mA (max)
CS = “1”
IA+
VA+ Supply Current
LM12454/8
LM12H458
3.1
5.0
mA (max)
3.1
5.5
mA (max)
IST
Stand-By Supply Current (ID+) + (IA+)
[Power-Down Mode Selected]
Clock Stopped
10
8 MHz Clock
40
µA (max)
µA (max)
VA+ = 5.5V
ON-Channel = 5.5V,
0.1
0.3
µA (max)
Multiplexer ON-Channel Leakage Current
OFF-Channel = 0V
ON-Channel = 0V
OFF-Channel = 5.5V
0.1
0.3
µA (max)
VA+ = 5.5V
ON-Channel = 5.5V
0.1
0.3
µA (max)
Multiplexer OFF-Channel Leakage Current
OFF-Channel = 0V
ON-Channel = 0V
OFF-Channel = 5.5V
0.3
0.1
µA (max)
LM12454
RON
Multiplexer ON-Resistance
VIN = 5V
VIN = 2.5V
VIN = 0V
LM12454
800
1500
(max)
850
1500
(max)
760
1500
(max)
Multiplexer Channel-to-Channel
RON matching
VIN = 5V
VIN = 2.5V
VIN = 0V
±1.0%
±1.0%
±1.0%
±3.0%
±3.0%
±3.0%
(max)
(max)
(max)
Internal Reference Characteristics (Notes 6, 7)
The following specifications apply to the LM12454, LM12458, and LM12H458 for VA+ = VD+ = 5V unless otherwise specified.
Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25˚C.
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 11)
Units
VREFOUT Internal Reference Output Voltage
2.5
2.5 ±4%
V (max)
VREF/T Internal Reference Temperature Coefficient
40
REF/IL Internal Reference Load Regulation
Sourcing (0 < IL +4 mA)
Sinking (−1 IIL < 0 mA)
ppm/˚C
0.2
%/mA (max)
1.2
%/mA (max)
VREF Line Regulation
4.5V VA+ 5.5V
3
20
mV (max)
ISC
Internal Reference Short Circuit Current
VREFOUT = 0V
13
25
mA (max)
VREF/t Long Term Stability
200
tSU
Internal Reference Start-Up Time
VA+ = VD+ = 0V
5V, CL = 100 µF
10
ppm/kHr
ms
7
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