LTC2664 datasheet(13/28 Pages) LINER

13 / 28 page

LTC2664

2664fa

For more information www.linear.com/LTC2664

pin Functions

the REFCOMP pin. The allowable external reference input

voltage range is 0.5V to VCC – 1.75V.

REFCOMP(Pin26):InternalReferenceCompensationPin.

For low noise and reference stability, tie a 0.1µF capacitor

to GND. Tying REFCOMP to GND causes the part to power

up with the internal reference disabled, allowing the use

of an external reference at start-up.

VCC (Pin 28): Analog Supply Voltage Input. 4.5V ≤ VCC ≤

5.5V. Bypass to GND with a 1µF capacitor.

OVRTMP (Pin 30): Thermal Protection Interrupt Pin.

This open-drain N-channel output pulls low when chip

temperature exceeds 160°C. This pin is released on the

next CS/LD rising edge. A pull-up resistor is required.

MSP0 (Pin 31): MSPAN Bit 0. Tie this pin to VCC or GND

to select the power-on span and power-on-reset code for

all four channels (see Table 4).

MSP1 (Pin 32): MSPAN Bit 1. Tie this pin to VCC or GND

to select the power-on span and power-on-reset code for

all four channels (see Table 4).

Exposed Pad (Pin 33): Analog Negative Supply (V–). Must

be soldered to PCB.

LTC2664 Datasheet(PDF) 13 Page - Linear Technology