AD5231BRU10 Analog Devices Inc, AD5231BRU10 Datasheet - Page 26

• Manufacturer Part Number: AD5231BRU10
• Description: IC DGTL POT 1024POS 16-TSSOP
• Manufacturer: Analog Devices Inc

Specifications of AD5231BRU10

• Rohs Status: RoHS non-compliant
• Taps: 1024
• Resistance (ohms): 10K
• Number Of Circuits: 1
• Temperature Coefficient: 600 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: 4-Wire SPI Serial
• Voltage - Supply: 2.7 V ~ 5.5 V, ±2.25 V ~ 2.75 V
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 16-TSSOP
• Resistance In Ohms: 10K
• End To End Resistance: 10kohm
• Track Taper: Logarithmic
• Resistance Tolerance: +20, -40%
• No. Of Steps: 1024
• Supply Voltage Range: 2.7V To 5.5V, ± 2.25V To ± 2.75V
• Control Interface: Serial, SPI
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD5231
RDAC CIRCUIT SIMULATION MODEL
The internal parasitic capacitances and the external load
dominates the ac characteristics of the RDACs. The −3 dB
bandwidth of the AD5231BRU10 (10 kΩ resistor) measures
370 kHz at half scale when configured as a potentiometer
divider. Figure 15 provides the large signal BODE plot charac-
teristics. A parasitic simulation mode is shown in Figure 57.
Figure 57. RDAC Circuit Simulation Model for RDAC = 10 kΩ
A
50pF
C
A
RDAC
10kΩ
W
50pF
C
W
C
50pF
B
B
Rev. C | Page 26 of 28
The following code provides a macro model net list for the
10 kΩ RDAC:
.PARAM D = 1024, RDAC = 10E3
*
.SUBCKT DPOT (A, W, B)
*
CA
RWA
CW
RWB
CB
*
.ENDS DPOT
A
A
W
W
B
0
W
0
B
0
50E-12
{(1-D/1024)* RDAC + 15}
50E-12
{D/1024 * RDAC + 15}
50E-12