AD5242 AD [Analog Devices], AD5242 Datasheet - Page 4

• Manufacturer Part Number: AD5242
• Description: 2-Channel, 256-Position Digital Potentiometer
• Manufacturer: AD [Analog Devices]

ABSOLUTE MAXIMUM RATINGS
(T
V
V
V
V
I
Digital Inputs and Output Voltage to GND . . 0 V, V
Operating Temperature Range . . . . . . . . . . –40°C to +125°C
Maximum Junction Temperature (T
Storage Temperature . . . . . . . . . . . . . . . . . . –65°C to +150°C
Lead Temperature (Soldering, 10 sec) . . . . . . . . . . . . . 300°C
Thermal Resistance
NOTES
2
3
CAUTION
ESD (electrostatic discharge) sensitive device. Electrostatic charges as high as 4000 V readily
accumulate on the human body and test equipment and can discharge without detection. Although
the AD5207 features proprietary ESD protection circuitry, permanent damage may occur on
devices subjected to high-energy electrostatic discharges. Therefore, proper ESD precautions are
recommended to avoid performance degradation or loss of functionality.
AD5207
Model
AD5207BRU10-REEL7
AD5207BRU50-REEL7
AD5207BRU100-REEL7
MAX
Stresses above those listed under Absolute Maximum Ratings may cause perma-
nent damage to the device. This is a stress rating only; functional operation of the
device at these or any other conditions above those indicated in the operational
section of this specification is not implied. Exposure to absolute maximum rating
conditions for extended periods may affect device reliability.
Max current is bounded by the maximum current handling of the switches,
maximum power dissipation of the package, and maximum applied voltage
across any two of the A, B, and W Terminals at a given resistance. Please refer to
TPC 22 for detail.
Package Power Dissipation = (T
date code YYWW.
Three lines of information appear on the device. Line 1 lists the part number; Line 2 includes branding information and the ADI logo, and Line 3 contains the
DD
SS
DD
A
A
, V
= 25°C, unless otherwise noted)
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0, –3 V
2
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –0.3, +7 V
to V
B
(A, B, W) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ± 20 mA
, V
SS
W
to GND . . . . . . . . . . . . . . . . . . . . . . . . . . V
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 V
3
DGND
PIN CONFIGURATION
SHDN
θ
V
W2
JA,
CS
B2
A2
SS
TSSOP-14 . . . . . . . . . . . . . 206°C/W
1
2
3
4
5
6
7
J
(Not to Scale)
Max–T
TOP VIEW
AD5207
10
k
50
100
A
)/θ
J
JA
Max) . . . . . . . . . . 150°C
1
.
14
13
12
11
10
9
8
B1
A1
W1
CLK
SDO
SDI
V
DD
Temperature
Range
–40°C to +125°C
–40°C to +125°C
–40°C to +125°C
DD
ORDERING GUIDE
SS
+ 0.3 V
, V
DD
Package
Description
TSSOP-14
TSSOP-14
TSSOP-14
Pin Mnemonic Description
1
2
3
4
5
6
7
8
9
10
11
12
13
14
B9
A1
2
NOTES
ADDR(RDAC1) = 00; ADDR(RDAC2 = 01).
Data loads B9 first into SDI pin.
ADDR
9
V
B2
A2
W2
DGND
SHDN
CS
SDI
SDO
CLK
V
W1
A1
B1
B8
A0
2
SS
DD
8
B7
D7
MSB
2
PIN FUNCTION DESCRIPTIONS
Table I. Serial-Data Word Format
7
Package
Option
RU-14
RU-14
RU-14
Negative Power Supply, specified for opera-
tion from 0 V to –2.7 V.
Terminal B of RDAC#2.
Terminal A of RDAC#2.
Wiper, RDAC#2, addr = 1
Digital Ground.
Active Low Input. Terminal A open-circuit
and Terminal B shorted to Wiper. Shut-
down controls both RDACs #1 and #2.
Chip Select Input, Active Low. When CS
returns high, data in the serial input register
is decoded, based on the address bit, and
loaded into the corresponding RDAC register.
Serial Data Input. MSB is loaded first.
Serial Data Output. Open Drain transistor
requires pull-up resistor.
Serial Clock Input. Positive Edge Triggered.
Positive Power Supply. Specified for opera-
tion at 2.7 V to 5.5 V.
Wiper, RDAC #1, addr = 0
Terminal A of RDAC #1.
Terminal B of RDAC #1.
B6
D6
B5
D5
DATA
Qty Per
Container
1,000
1,000
1,000
B4
D4
WARNING!
B3
D3
ESD SENSITIVE DEVICE
B2
D2
2
2
.
Branding
Information
B10
B50
B100
B1
D1
B0
D0
LSB
2
0