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Partno	Mfg	Dc	Qty	Available	Descript
LM12458CIV/NOPB |LM12458CIVNOPB	NS	N/a	40	avai	12-Bit Plus Sign Data Acquisition System with Self-Calibration 44-PLCC -40 to 85

LM12458CIV/NOPB ,12-Bit Plus Sign Data Acquisition System with Self-Calibration 44-PLCC -40 to 85FEATURESDESCRIPTION23• Three operating modes: 12-bit + sign, 8-bit +The LM12458, and LM12H458 are h ..
LM12458CIVF ,12-Bit Plus Sign Data Acquisition System with Self-Calibrationapplications information can be found in applica-n 8- or 16-bit wide databus dmicroprocessor or DSP ..
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LM1247 ,150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs [Life-time buy]Electrical CharacteristicsUnless otherwise noted: T = 25˚C, V = +5.0V, V = 0.70 V ,V =V ,C = 8 pF, ..
LM1247AAG/NA ,150 MHz I2C Compatible RGB Preamplifier with Internal 512 Character OSD ROM, 512 Character RAM and 4 DACs [Life-time buy]General Descriptionn OSD override allows OSD messages to override videoThe LM1247 pre-amp is an int ..
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LM3886 ,High-Performance 68W Audio Power Amplifier with MuteFEATURES DESCRIPTIONThe LM3886 is a high-performance audio power23• 68W Cont. Avg. Output Power int ..
LM3886 ,High-Performance 68W Audio Power Amplifier with MuteElectrical Characteristics+−The following specifications apply for V = +28V, V =−28V, I =−0.5 mA wi ..
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LM12458CIV/NOPB
12-Bit Plus Sign Data Acquisition System with Self-Calibration 44-PLCC -40 to 85
LM12454, LM12458, LM12H458
www.ti.com SNAS079A –MAY 2004–REVISED FEBRUARY 2006
LM12454/LM12458/LM12H458 12-Bit+ Sign Data Acquisition System with Self-Calibration
Checkfor Samples: LM12454, LM12458, LM12H458
1FEATURES
DESCRIPTION
23• Three operating modes: 12-bit+ sign, 8-bit+ The LM12458, and LM12H458 are highly integratedsign, and “watchdog” Data Acquisition Systems. Operatingon just 5V, they• Single-endedor differential inputs combinea fully-differential self-calibrating (correcting Built-in Sample-and-Hold and 2.5V bandgap linearity and zero errors) 13-bit (12-bit+ sign) analog-
reference to-digital converter (ADC) and sample-and-hold (S/H)
with extensive analog functions and digital• Instruction RAM and event sequencer functionality. Upto32 consecutive conversions, using• 8-channel multiplexer two's complement format, canbe storedinan internal 32-word conversion FIFO 32-word (16-bit wide) FIFO data buffer. An internal8-
word RAM can store the conversion sequence for up• Programmable acquisition times and to eight acquisitions through the LM12(H)458's eight-conversion rates input multiplexer. The obsolete LM12454 hasa four-• Self-calibration and diagnostic mode channel multiplexer,a differential multiplexer output, 8-or 16-bit wide data bus microprocessoror anda differential S/H input. The LM12(H)458 can
DSP interface also operate with 8-bit+ sign resolution andina
supervisory “watchdog” mode that comparesan input
signal against two programmable limits.APPLICATIONS
Programmable acquisition times and conversion rates• Data Logging are possible through the useof internal clock-driven• Instrumentation timers. The reference voltage input canbe externally• Process Control generated for absoluteor ratiometric operationor can derived using the internal 2.5V bandgap• Energy Management
reference.• Inertial Guidance
All registers, RAM, and FIFO are directly addressableKEY SPECIFICATIONS through the high speed microprocessor interfaceto
either an 8-bitor 16-bit data bus. The LM12(H)458• Resolution: 12-bit+ signor 8-bit+ sign includesa direct memory access (DMA) interface for• 13-bit conversion time: 8.8 μs, 5.5μs (H) (max) high-speed conversion data transfer. 9-bit conversion time: 4.2 μs, 2.6 μs (H) (max) Additional applications information can be foundin rate: applications notes AN-906, AN-947 and AN-949. (H)μs (max) Power dissipation: (H) (max)