AD5204BRZ50 Analog Devices Inc, AD5204BRZ50 Datasheet - Page 14

• Manufacturer Part Number: AD5204BRZ50
• Description: IC,Digital Potentiometer,CMOS,SOP,24PIN,PLASTIC
• Manufacturer: Analog Devices Inc

Specifications of AD5204BRZ50

• Taps: 256
• Resistance (ohms): 50K
• Number Of Circuits: 4
• Temperature Coefficient: 700 ppm/°C Typical
• Memory Type: Volatile
• Interface: SPI, 3-Wire Serial
• Voltage - Supply: 2.7 V ~ 5.5 V, ±2.3 V ~ 2.7 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 24-SOIC (7.5mm Width)
• Resistance In Ohms: 50K
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

AD5204/AD5206
PROGRAMMING THE POTENTIOMETER DIVIDER
VOLTAGE OUTPUT OPERATION
The digital potentiometer easily generates an output voltage
proportional to the input voltage applied to a given terminal.
For example, connecting Terminal A to 5 V and Terminal B to
ground produces an output voltage at the wiper that can be any
value from 0 V up to 1 LSB less than +5 V. Each LSB of voltage
is equal to the voltage applied across Terminal A and Terminal B
divided by the 256-position resolution of the potentiometer
divider. The general equation defining the output voltage with
respect to ground for any given input voltage applied to
Terminal A and Terminal B is
Operation of the digital potentiometer in the divider mode
results in more accurate operation over temperature. In this
mode, the output voltage is dependent on the ratio of the
internal resistors, not the absolute value; therefore, the drift
improves to 15 ppm/°C.
V
W
(Dx) = Dx/256 × V
AB
+ V
B
Rev. C | Page 14 of 20
(3)
SHDN*
SDO*
CLK
SDI
CS
DGND
DO
DI
REG
SER
A2
A1
A0
D7
D0
8
ADDR
DEC
EN
Figure 22. Block Diagram
PR
D7
D0
D7
D0
AD5204/AD5206
LATCH
LATCH
RDAC
RDAC
4/6
R
1
R
*AD5204 ONLY
V
A1
W1
B1
A4/A6
W4/W6
B4/B6
DD