UZZ7000T

DISCRETE SEMICONDUCTORS DATA SHEET M3D315 UZZ7000T Trigger amplifier with two wire current interface Preliminary specification 2000 Sep 05 Philips Semiconductors Preliminary specification Trigger amplifier with two wire current interface FEATURES Differential input trigger amplifier Designed for signal conditioning of magnetoresistive sensor bridges Two wire 7 and 14 mA current interface Stabilized voltage supply source for external sensor bridges Comparator with temperature controlled hysteresis Wide temperature range Max. 19 V supply. DESCRIPTION The UZZ7000T is a differential input amplifier circuit with a trigger mechanism for application with magnetoresistive sensor bridges. It is equipped with a two wire current interface. The polarity of an input voltage difference triggers the circuit supply current between 7 and 14 mA. 1 4 MBK187 UZZ7000T PINNING PIN 1 2 3 4 5 6 7 8 SYMBOL SA n.c. n.c. VAC GND n.c. VP SB DESCRIPTION positive differential input not connected not connected current output and supply ground not connected bridge supply negative differential input handbook, halfpage 8 5 The device also includes a voltage regulator for supply to an external sensor bridge. An on-chip temperature sensor adapts the comparator hysteresis to the temperature dependent sensitivity of typical magnetoresistive sensors, such as the Philips KMZ family types. QUICK REFERENCE DATA SYMBOL VVAC IVAC(L) IVAC(H) VVP IVP Tamb Notes 1. Vin = VSA − VSB. 2. Maximum power ...