LTC1966CMS8 datasheet(8/32 Pages) LINER

8 / 32 page

LTC1966

sn1966 1966fas

GND (Pin 1): Ground. A power return pin.

IN1 (Pin 2): Differential Input. DC coupled (polarity is

irrelevant).

IN2 (Pin 3): Differential Input. DC coupled (polarity is

irrelevant).

VSS (Pin 4): Negative Voltage Supply. GND to – 5.5V.

VOUT (Pin 5): Output Voltage. This is high impedance. The

RMS averaging is accomplished with a single shunt ca-

pacitor from this node to OUT RTN. The transfer function

is given by:

OUT RTN

Average IN

OUT ––

() =

()









PI FU CTIO S

OUT RTN (Pin 6): Output Return. The output voltage is

created relative to this pin. The VOUT and OUT RTN pins are

not balanced and this pin should be tied to a low imped-

ance, both AC and DC. Although it is typically tied to GND,

it can be tied to any arbitrary voltage, VSS < OUT RTN <

(VDD – Max Output). Best results are obtained when

OUT RTN = GND.

VDD (Pin 7): Positive Voltage Supply. 2.7V to 5.5V.

ENABLE (Pin 8): An Active-Low Enable Input. LTC1966 is

debiased if open circuited or driven to VDD. For normal

operation, pull to GND, a logic low or even VSS.

LTC1966CMS8 Datasheet(PDF) 8 Page - Linear Technology