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DC Characteristics (Notes 6, 7, 8, 19)
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 = 25C.
Symbol
Parameter
Conditions
Typical
Limits
Unit
(Note 10)
(Note 11)
(Limit)
I
D+VD+ Supply Current
CS = “1”
LM12454/8
0.55
1.0
mA (max)
LM12H458
0.55
1.2
I
A+VA+ Supply Current
CS = “1”
LM12454/8
3.1
5.0
mA (max)
LM12H458
3.1
5.5
I
ST
Stand-By Supply Current (I
D++IA+)
Power-Down Mode Selected
Clock Stopped
10
A (max)
8 MHz Clock
40
A (max)
Multiplexer ON-Channel Leakage Current
V
A+ = 5.5V
ON-Channel = 5.5V
0.3
OFF-Channel = 0V
0.1
A (max)
LM12(H)458MEL
0.5
ON-Channel = 0V
0.3
OFF-Channel = 5.5V
0.1
A (max)
LM12(H)458MEL
0.5
Multiplexer OFF-Channel Leakage Current
V
A+ = 5.5V
ON-Channel = 5.5V
0.3
OFF-Channel = 0V
0.1
A (max)
LM12(H)458MEL
0.5
ON-Channel = 0V
0.3
OFF-Channel = 5.5V
0.1
A (max)
LM12(H)458MEL
0.5
R
ON
Multiplexer ON-Resistance
LM12454
V
IN = 5V
800
1500
(max)
V
IN = 2.5V
850
1500
(max)
V
IN = 0V
760
1500
(max)
Multiplexer Channel-to-Channel
LM12454
R
ON matching
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, 19)
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 = 25C.
Symbol
Parameter
Conditions
Typical
Limits
Unit
(Note 10)
(Note 11)
(Limit)
V
REFOUT
Internal Reference Output Voltage
2.5
2.5 ±4%
V (max)
LM12(H)458MEL
2.5 ±6%
V
REF/T
Internal Reference Temperature
40
ppm/C
Coefficient
REF/IL
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
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