LTC2616CDD datasheet(10/20 Pages) LINER

10 / 20 page

LTC2606/LTC2616/LTC2626

26061626f

PIN FUNCTIONS

CA2 (Pin 1): Chip Address Bit 2. Tie this pin to VCC, GND

or leave it floating to select an I2C slave address for the part

(Table 1).

SDA (Pin 2): Serial Data Bidirectional Pin. Data is shifted

into the SDA pin and acknowledged by the SDA pin. This

pin is high impedance while data is shifted in. Open drain

N-channel output during acknowledgment. SDA requires

a pull-up resistor or current source to VCC.

SCL (Pin 3): Serial Clock Input Pin. Data is shifted into the

SDA pin at the rising edges of the clock. This high

impedance pin requires a pull-up resistor or current source

to VCC.

CA0 (Pin 4): Chip Address Bit 0. Tie this pin to VCC, GND

or leave it floating to select an I2C slave address for the part

(Table 1).

CA1 (Pin 5): Chip Address Bit 1. Tie this pin to VCC, GND

or leave it floating to select an I2C slave address for the part

(Table 1).

REF (Pin 6): Reference Voltage Input. 0V ≤ VREF ≤ VCC.

VOUT (Pin 7): DAC Analog Voltage Output. The output

range is 0V to VREF.

GND (Pin 8): Analog Ground.

VCC (Pin 9): Supply Voltage Input. 2.7V ≤ VCC ≤ 5.5V.

LDAC (Pin 10): Asynchronous DAC Update. A falling edge

on this input after four bytes have been written into the part

immediately updates the DAC register with the contents of

the input register. A low on this input without a complete

32-bit (four bytes including the slave address) data write

transfer to the part does not update the DAC output.

Software power-down is disabled when LDAC is low.

Exposed Pad (Pin 11): Ground. Must be soldered to PCB

ground.

LTC2616CDD датащи(PDF) 10 Page - Linear Technology