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LM12454 データシート(PDF) 7 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部品番号 LM12454
部品情報  12-Bit Sign Data Acquisition System with Self-Calibration
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メーカー  NSC [National Semiconductor (TI)]
ホームページ  http://www.national.com
Logo NSC - National Semiconductor (TI)

LM12454 データシート(HTML) 7 Page - National Semiconductor (TI)

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DC Characteristics (Notes 6, 7, 8)
The following specifications apply to the LM12454, LM12458, and LM12H458 for V
A+=VD+ = 5V, VREF+ = 5V, VREF− = 0V,
f
CLK = 8.0 MHz (LM12H454/8) or fCLK = 5.0 MHz (LM12458), and minimum acquisition time unless otherwise specified. Bold-
face limits apply for T
A =TJ =TMIN to TMAX; all other limits TA =TJ = 25˚C.
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 11)
Units
I
D+VD+ Supply Current
CS = “1”
LM12454/8
LM12H458
0.55
0.55
1.0
1.2
mA (max)
mA (max)
I
A+VA+ Supply Current
CS = “1”
LM12454/8
LM12H458
3.1
3.1
5.0
5.5
mA (max)
mA (max)
I
ST
Stand-By Supply Current (I
D+)+(IA+)
[Power-Down Mode Selected]
Clock Stopped
8 MHz Clock
10
40
µA (max)
µA (max)
Multiplexer ON-Channel Leakage Current
V
A+ = 5.5V
ON-Channel = 5.5V,
OFF-Channel = 0V
0.1
0.3
µA (max)
ON-Channel = 0V
OFF-Channel = 5.5V
0.1
0.3
µA (max)
Multiplexer OFF-Channel Leakage Current
V
A+ = 5.5V
ON-Channel = 5.5V
OFF-Channel = 0V
0.1
0.3
µA (max)
ON-Channel = 0V
OFF-Channel = 5.5V
0.1
0.3
µA (max)
R
ON
Multiplexer ON-Resistance
LM12454
V
IN = 5V
800
1500
Ω(max)
V
IN = 2.5V
850
1500
Ω(max)
V
IN = 0V
760
1500
Ω(max)
Multiplexer Channel-to-Channel
R
ON matching
LM12454
V
IN =5V
±1.0%
±3.0%
(max)
V
IN = 2.5V
±1.0%
±3.0%
(max)
V
IN =0V
±1.0%
±3.0%
(max)
Internal Reference Characteristics (Notes 6, 7)
The following specifications apply to the LM12454, LM12458, and LM12H458 for V
A+=VD+ = 5V unless otherwise specified.
Boldface limits apply for T
A =TJ =TMIN to TMAX; all other limits TA =TJ = 25˚C.
Symbol
Parameter
Conditions
Typical
(Note 10)
Limits
(Note 11)
Units
V
REFOUT
Internal Reference Output Voltage
2.5
2.5 ±4%
V (max)
∆V
REF/
∆T Internal Reference Temperature Coefficient
40
ppm/˚C
REF/
∆I
L
Internal Reference Load Regulation
Sourcing (0 < I
L
≤ +4 mA)
0.2
%/mA (max)
Sinking (−1
≤ I
IL < 0 mA)
1.2
%/mA (max)
∆V
REF
Line Regulation
4.5V
≤ V
A+
≤ 5.5V
3
20
mV (max)
I
SC
Internal Reference Short Circuit Current
V
REFOUT =0V
13
25
mA (max)
∆V
REF/
∆t Long Term Stability
200
ppm/kHr
t
SU
Internal Reference Start-Up Time
V
A+=VD+=0V →
5V, C
L = 100 µF
10
ms
www.national.com
7


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