AD5252 View Datasheet(PDF) - Analog Devices
Part Name
Description
Manufacturer
AD5252 Datasheet PDF : 28 Pages
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Data Sheet
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
AD5251/AD5252
VDD 1
AD0 2
WP 3
W1 4
B1 5
A1 6
SDA 7
14 W3
AD5251/
AD5252
TOP VIEW
(Not to Scale)
13 B3
12 A3
11 AD1
10 DGND
9 SCL
8 VSS
Figure 2. Pin Configuration
Table 5. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
VDD
Positive Power Supply Pin. Connect +2.7 V to +5 V for single supply or ±2.7 V for dual supply, where
VDD – VSS ≤ 5.5 V. VDD must be able to source 35 mA for 26 ms when storing data to EEMEM.
2
AD0
I2C Device Address 0. AD0 and AD1 allow four AD5251/AD5252 devices to be addressed.
3
WP
Write Protect, Active Low. VWP ≤ VDD + 0.3 V.
4
W1
Wiper Terminal of RDAC1. VSS ≤ VW1 ≤ VDD.1
5
B1
B Terminal of RDAC1. VSS ≤ VB1 ≤ VDD.1
6
A1
A Terminal of RDAC1. VSS ≤ VA1 ≤ VDD.1
7
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.
8
VSS
Negative Supply. Connect to 0 V for single supply or –2.7 V for dual supply, where VDD – VSS ≤ +5.5 V. If
VSS is used in dual supply, VSS must be able to sink 35 mA for 26 ms when storing data to EEMEM.
9
SCL
Serial Input Register Clock Pin. Shifts in one bit at a time upon positive clock edges. VSCL ≤ (VDD + 0.3 V).
Pull-up resistor is recommended for SCL to ensure minimum power.
10
DGND
Digital Ground. Connect to system analog ground at a single point.
11
AD1
I2C Device Address 1. AD0 and AD1 allow four AD5251/AD5252 devices to be addressed.
12
A3
A Terminal of RDAC3. VSS ≤ VA3 ≤ VDD.1
13
B3
B Terminal of RDAC3. VSS ≤ VB3 ≤ VDD.1
14
W3
Wiper Terminal of RDAC3. VSS ≤ VW3 ≤ VDD.1
1 For quad-channel device software compatibility, the dual potentiometers in the parts are designated as RDAC1 and RDAC3.
Rev. D | Page 9 of 28
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