Datasheet
Table Of Contents
- FEATURES
- APPLICATIONS
- KEY SPECIFICATIONS
- DESCRIPTION
- ABSOLUTE MAXIMUM RATINGS
- OPERATING RATINGS
- CONVERTER CHARACTERISTICS
- CONVERTER AC CHARACTERISTICS
- DC CHARACTERISTICS
- INTERNAL REFERENCE CHARACTERISTICS
- DIGITAL CHARACTERISTICS
- DIGITAL TIMING CHARACTERISTICS
- TYPICAL PERFORMANCE CHARACTERISTICS
- TYPICAL DYNAMIC PERFORMANCE CHARACTERISTICS
- TEST CIRCUITS and WAVEFORMS
- TIMING DIAGRAMS

LM12454, LM12458, LM12H458
SNAS079A –MAY 2004–REVISED FEBRUARY 2006
www.ti.com
ABSOLUTE MAXIMUM RATINGS
(1) (2)
Supply Voltage (V
A
+ and V
D
+) 6.0V
Voltage at Input and Output Pins, except analog inputs −0.3V to (V
+
+ 0.3V)
Voltage at Analog Inputs − 5V to (V
+
+ 5V)
|V
A
+ − V
D
+| 300 mV
Input Current at Any Pin
(3)
±5 mA
Package Input Current
(3)
±20 mA
Power Dissipation, PQFP
(T
A
= 25°C)
(4)
875 mW
Storage Temperature −65°C to +150°C
Lead Temperature
PQFP, Infrared, 15 sec. +300°C
PLCC, Solder, 10 sec. +250°C
ESD Susceptibility
(5)
1.5 kV
(1) All voltages are measured with respect to GND, unless otherwise specified.
(2) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for
which the device is functional, but does not specify performance limits. For specifications and test conditions, see the Electrical
Characteristics. The specifications apply only for the test conditions listed. Some performance characteristics may degrade when the
device is not operated under the listed test conditions.
(3) When the input voltage (V
IN
) at any pin exceeds the power supply rails (V
IN
< GND or V
IN
> (V
A
+ or V
D
+)), the current at that pin should
be limited to 5 mA. The 20 mA maximum package input current rating allows the voltage at any four pins, with an input current of 5 mA,
to simultaneously exceed the power supply voltages.
(4) The maximum power dissipation must be derated at elevated temperatures and is dictated by T
Jmax
(maximum junction temperature),
θ
JA
(package junction to ambient thermal resistance), and T
A
(ambient temperature).
(5) Human body model, 100 pF discharged through a 1.5 kΩ resistor.
OPERATING RATINGS
(1) (2)
Temperature Range
(T
min
≤ T
A
≤ T
max
) −40°C ≤ T
A
≤ 85°C
Supply Voltage
V
A
+, V
D
+ 3.0V to 5.5V
|V
A
+ − V
D
+| ≤100 mV
V
IN+
Input Range GND ≤ V
IN+
≤ V
A
+
V
IN−
Input Range GND ≤ V
IN−
≤ V
A
+
V
REF+
Input Voltage 1V ≤ V
REF+
≤ V
A
+
V
REF−
Input Voltage 0V ≤ V
REF−
≤ V
REF+
− 1V
V
REF+
− V
REF−
1V ≤ V
REF
≤ V
A
+
V
REF
Common Mode Range
(3)
0.1 V
A
+
≤ V
REFCM
≤ 0.6 V
A
+
T
J
(MAX) 150°C
(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 does not specify performance limits. For specifications and test conditions, see the Electrical
Characteristics. The specifications apply only for the test conditions listed. Some performance characteristics may degrade when the
device is not operated under the listed test conditions.
(2) All voltages are measured with respect to GND, unless otherwise specified.
(3) V
REFCM
(Reference Voltage Common Mode Range) is defined as (V
REF+
+ V
REF−
)/2.
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