AD5235BRU25 Analog Devices Inc, AD5235BRU25 Datasheet - Page 2

• Manufacturer Part Number: AD5235BRU25
• Description: IC POT DUAL 25K 1024POS 16-TSSOP
• Manufacturer: Analog Devices Inc

Specifications of AD5235BRU25

• Rohs Status: RoHS non-compliant
• Taps: 1024
• Resistance (ohms): 25K
• Number Of Circuits: 2
• Temperature Coefficient: 35 ppm/°C Typical
• Memory Type: Non-Volatile
• Interface: 4-Wire SPI Serial
• Voltage - Supply: 3 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: 25K
• End To End Resistance: 25kohm
• Track Taper: Logarithmic
• Resistance Tolerance: ± 30%
• No. Of Steps: 1024
• Supply Voltage Range: 3V To 5.5V, ± 2.25V To ± 2.75V
• Control Interface: Serial, SPI
• For Use With: EVAL-AD5235EBZ - BOARD EVALUATION FOR AD5235
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

AD5235
TABLE OF CONTENTS
Features .............................................................................................. 1
Applications....................................................................................... 1
General Description ......................................................................... 1
Functional Block Diagram .............................................................. 1
Revision History ............................................................................... 3
Specifications..................................................................................... 4
Absolute Maximum Ratings............................................................ 8
Pin Configuration and Function Descriptions............................. 9
Typical Performance Characteristics ........................................... 10
Theory of Operation ...................................................................... 16
Electrical Characteristics—25 kΩ, 250 kΩ Versions ............... 4
Interface Timing and EEMEM Reliability Characteristics—
25 kΩ, 250 kΩ Versions ............................................................... 6
ESD Caution.................................................................................. 8
Test Circuits................................................................................. 14
Scratchpad and EEMEM Programming.................................. 16
Basic Operation .......................................................................... 16
EEMEM Protection.................................................................... 17
Digital Input and Output Configuration................................. 17
Serial Data Interface................................................................... 17
Daisy-Chain Operation ............................................................. 18
Terminal Voltage Operating Range.......................................... 18
Advanced Control Modes ......................................................... 20
RDAC Structure.......................................................................... 21
Rev. D | Page 2 of 32
Applications Information .............................................................. 24
Outline Dimensions ....................................................................... 30
Programming the Variable Resistor......................................... 22
Programming the Potentiometer Divider............................... 22
Programming Examples ............................................................ 23
EVAL-AD5235SDZ Evaluation Kit.......................................... 23
Bipolar Operation from Dual Supplies.................................... 24
Gain Control Compensation .................................................... 24
High Voltage Operation ............................................................ 24
DAC.............................................................................................. 24
Bipolar Programmable Gain Amplifier................................... 25
10-Bit Bipolar DAC.................................................................... 25
Programmable Voltage Source with Boosted Output ........... 25
Programmable Current Source ................................................ 26
Programmable Bidirectional Current Source......................... 26
Programmable Low-Pass Filter ................................................ 27
Programmable Oscillator .......................................................... 27
Optical Transmitter Calibration with ADN2841 ................... 28
Resistance Scaling ...................................................................... 28
Resistance Tolerance, Drift, and Temperature Coefficient
Mismatch Considerations ......................................................... 29
RDAC Circuit Simulation Model............................................. 29
Ordering Guide .......................................................................... 30