UM7108A中文资料联电数据手册PDF规格书

特性 Features

® Multi-function measurement system: ® Provides serial data output for other applications

« Analog to digital converter (UM7108F)

« Data hold and Peak hold, both with LCD B Guaranteed zero reading with zero input

annunciators ® True polarity indication for precision

+ Short circuit beeper with LCD annunciator null detection

« Low battery detector with LCD annunciator ® Convenient 9V battery operation

«» Frequency counter with two LCD annunciators ® Low power operation — 10mW

(UM7108F) ® Low noise A/D converter

® Frequency counter: Auto range from 2 KHz to 20 MHz « Lownoise — 15 uV

¥ Triplex LCD display « Differential inputs — 1 pA bias current

« Full 3 1/2-Digit Display - Differential reference for ratiometric ohms

+ Bannunciators -— Data-hold, Peak-hold, KHz, MHz, « On-chip voltage reference — 20 ppM/°C drift

Low-bat, Continuance + Low linearity error guaranteed less than 1 count

= 1 annunciator drive pin for unit display + High Impedance CMOS differential inputs —10a

+ 3 decimal point drivers with 3 independent ® Applications: digital panel meters, digital

control pins multi meters, thermometers, capacitance meters,

» Polarity driver pH meters, photometers etc.

+ Displays “OL for input overrange