AD5253 datasheet(9/32 Pages) AD

9 / 32 page

Data Sheet

AD5253/AD5254

Rev. C | Page 9 of 32

PIN CONFIGURATION AND FUNCTION DESCRIPTIONS

AD5253/

AD5254

TOP VIEW

(Not to Scale)

AD0

SDA

VSS 10

VDD

AD1

DGND

SCL

Figure 2. Pin Configuration

Table 5. Pin Function Descriptions

Pin No.

Mnemonic

Description

Wiper Terminal of RDAC0. V

SS ≤ VW0 ≤ VDD.

B Terminal of RDAC0. V

SS ≤ VB0 ≤ VDD.

A Terminal of RDAC0. V

SS ≤ VA0 ≤ VDD.

AD0

I2C Device Address 0. AD0 and AD1 allow four AD5253/AD5254 devices to be addressed.

Write Protect, Active Low. V

WP ≤ VDD + 0.3 V.

Wiper Terminal of RDAC1. V

SS ≤ VW1 ≤ VDD.

B Terminal of RDAC1. V

SS ≤ VB1 ≤ VDD.

A Terminal of RDAC1. V

SS ≤ VA1 ≤ VDD.

SDA

Serial Data Input/Output Pin. Shifts in one bit at a time upon positive clock edges. MSB loaded first. Open-drain

MOSFET requires pull-up resistor.

Negative Supply. Connect to 0 V for single supply or –2.7 V for dual supply, where V

DD – VSS ≤ +5.5 V. If VSS is used

rather than grounded in dual supply, V

SS must be able to sink 35 mA for 26 ms when storing data to EEMEM.

A Terminal of RDAC2. V

SS ≤ VA2 ≤ VDD.

B Terminal of RDAC2. V

SS ≤ VB2 ≤ VDD.

Wiper Terminal of RDAC2. V

SS ≤ VW2 ≤ VDD.

SCL

Serial Input Register Clock Pin. Shifts in one bit at a time upon positive clock edges. V

SCL ≤ (VDD + 0.3 V). Pull-up

resistor is recommended for SCL to ensure minimum power.

DGND

Digital Ground. Connect to system analog ground at a single point.

AD1

I2C Device Address 1. AD0 and AD1 allow four AD5253/AD5254 devices to be addressed.

A Terminal of RDAC3. V

SS ≤ VA3 ≤ VDD.

B Terminal of RDAC3. V

SS ≤ VB3 ≤ VDD.

Wiper Terminal of RDAC3. V

SS ≤ VW3 ≤ VDD.

Positive Power Supply Pin. Connect +2.7 V to +5 V for single supply or ±2.7 V for dual supply, where V

DD – VSS ≤ +5.5 V.

DD must be able to source 35 mA for 26 ms when storing data to EEMEM.

AD5253 датащи(PDF) 9 Page - Analog Devices

AD5253 датащи(HTML) 9 Page - Analog Devices

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32

датащи скачать

ссылки URL