產品概述
The LM12458CIV/NOPB is a 12-bit +sign highly integrated Data Acquisition System operating on just 5V. It combines a fully-differential self-calibrating 13-bit (12-bit + sign) Analog-to-digital Converter (ADC) and sample-and-hold (S/H) with extensive analog functions and digital functionality. Up to 32 consecutive conversions, using two’s complement format can be stored in an internal 32-word (16-bit wide) FIFO data buffer. An internal 8-word RAM can store the conversion sequence for up to eight acquisitions through the LM12(H)458s eight-input multiplexer. The LM12458 can also operate with 8-bit +sign resolution and in a supervisory watchdog mode that compares an input signal against two programmable limits. Programmable acquisition times and conversion rates are possible through the use of internal clock-driven timers. The reference voltage input can be externally generated for absolute or ratiometrIC operation or can be derived using the internal 2.5V band-gap reference.
Single-ended or differential inputs
Instruction RAM and event sequencer
8-channel multiplexer
Programmable acquisition times and conversion rates
Self-calibration and diagnostic mode
Green product and no Sb/Br
應用
自動化與過程控制, 傳感與儀器
產品信息
分辨率 (Bits): 12bit 采樣率: 88kSPS 輸入通道類型: 差分、單端 數據接口: 并行 電源電壓類型: 單 電源電壓最小值: 3V 電源電壓最大值: 5.5V ADC / DAC 封裝類型: LCC 針腳數: 44引腳 工作溫度最小值: -40°C 工作溫度最高值: 85°C 產品范圍: Octal 12-Bit SAR ADCs 汽車質量標準: - MSL: MSL 3 - 168小時