LM12458CIVX datasheet(7/45 Pages) TI1

部件名	LM12458CIVX

功能描述	LM12454/LM12458/LM12H458 12-Bit Sign Data Acquisition System with Self-Calibration

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制造商	TI1 [Texas Instruments]

网页	http://www.ti.com

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LM12454, LM12458, LM12H458

www.ti.com

SNAS079A – MAY 2004 – REVISED FEBRUARY 2006

Converter Characteristics

(1) (2) (3) (4) (continued)

The following specifications apply to the LM12454, LM12458, and LM12H458 for VA+ = VD+ = 5V, VREF+ = 5V, VREF− = 0V, 12-

bit + sign conversion mode, fCLK = 8.0 MHz (LM12H458) or fCLK = 5.0 MHz (LM12454/8), RS = 25Ω, source impedance for

VREF+ and VREF− ≤ 25Ω, fully-differential input with fixed 2.5V common-mode voltage, and minimum acquisition time unless

otherwise specified. Boldface limits apply for TA = TJ = TMIN to TMAX; all other limits TA = TJ = 25°C.

Symbol

Parameter

Conditions

Typical (5)

Limits (6)

Units

Zero Error

VA+ = VD+ = 5V ±10%

±0.2

±1.75

LSB (max)

Power Supply

PSS

Full-Scale Error

VREF+ = 4.5V, VREF− = GND

±0.4

±2

LSB (max)

Sensitivity (11)

Linearity Error

±0.2

LSB

CREF

VREF+/VREF− Input Capacitance

85

pF

Selected Multiplexer Channel Input

CIN

75

pF

Capacitance

(11) Power Supply Sensitivity is measured after Auto-Zero and/or Auto-Calibration cycle has been completed with VA+ and VD+ at the

specified extremes.

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Product Folder Links: LM12454 LM12458 LM12H458

类似零件编号 - LM12458CIVX

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National Semiconductor ...	LM12458CIVX	1Mb / 36P	12-Bit Sign Data Acquisition System with Self-Calibration
Texas Instruments	LM12458CIVX/NOPB	1Mb / 43P	[Old version datasheet] 12-Bit Sign Data Acquisition System

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