Datasheet AD5235 (Analog Devices) - 10

AD5235 Data Sheet TYPICAL PERFORMANCE CHARACTERISTICS 0.20 0.20 +85°C +85°C +25°C +25°C 0.15 –40°C 0.15 –40°C 0.10 0.10 B) B) S S 0.05 L L 0.05 R ( R ( 0 RRO RRO E E 0 –0.05 INL DNL –0.05 –0.10 –0.15 –0.10 –0.20 –0.15 0 200 400 600 800 1000
006
0 200 400 600 800 1000
009
DIGITAL CODE DIGITAL CODE
02816- 02816- Figure 5. INL vs. Code, TA = −40°C, +25°C, +85°C Overlay, RAB = 25 kΩ Figure 8. R-DNL vs. Code, TA = −40°C, +25°C, +85°C Overlay, RAB = 25 kΩ
200 0.16 25kΩ +85°C ) +25°C C 180 250kΩ 0.14 /° –40°C 160 0.12 ppm O ( C 140 0.10 P B) S M L 120 0.08 TE R ( E 100 0.06 OD RRO M E R 80 0.04 TE DNL E 60 0.02 TIOM 40 0 N OTE 20 –0.02 P 0 –0.04 0 256 512 768 1023 0 200 400 600 800 1000
007 010
DIGITAL CODE CODE (Decimal)
02816- 02816- Figure 6. DNL vs. Code, TA = −40°C, +25°C, +85°C Overlay, RAB = 25 kΩ Figure 9. (∆VW/VW)/∆T × 106 Potentiometer Mode Tempco
200 0.20 25kΩ +85°C +25°C 180 250kΩ 0.15 ) –40°C /°C 160 m p 0.10 (p 140 O B) S 0.05 L 120 R ( EMPC 100 0 E T RRO D E 80 –0.05 MO INL AT T 60 S –0.10 O 40 RHE –0.15 20 0 –0.20 0 256 512 768 1023 0 200 400 600 800 1000
008 011
DIGITAL CODE
02816-
CODE (Decimal)
02816- Figure 7. R-INL vs. Code, TA = −40°C, +25°C, +85°C Overlay, RAB = 25 kΩ Figure 10. (∆RWB/RWB)/∆T × 106 Rheostat Mode Tempco Rev. F | Page 10 of 32 Document Outline Features Applications General Description Functional Block Diagram Revision History Specifications Electrical Characteristics—25 kΩ, 250 kΩ Versions Interface Timing and EEMEM Reliability Characteristics—25 kΩ, 250 kΩ Versions Timing Diagrams Absolute Maximum Ratings ESD Caution Pin Configuration and Function Descriptions Typical Performance Characteristics Test Circuits Theory of Operation Scratchpad and EEMEM Programming Basic Operation EEMEM Protection Digital Input and Output Configuration Serial Data Interface Daisy-Chain Operation Terminal Voltage Operating Range Power-Up Sequence Layout and Power Supply Bypassing Advanced Control Modes Linear Increment and Decrement Instructions Logarithmic Taper Mode Adjustment Using to Re-Execute a Previous Command Using Additional Internal Nonvolatile EEMEM Calculating Actual End-to-End Terminal Resistance RDAC Structure Programming the Variable Resistor Rheostat Operation Programming the Potentiometer Divider Voltage Output Operation Programming Examples EVAL-AD5235SDZ Evaluation Kit Applications Information Bipolar Operation from Dual Supplies Gain Control Compensation High Voltage Operation DAC Bipolar Programmable Gain Amplifier 10-Bit Bipolar DAC Programmable Voltage Source with Boosted Output Programmable Current Source Programmable Bidirectional Current Source Programmable Low-Pass Filter Programmable Oscillator Optical Transmitter Calibration with ADN2841 Resistance Scaling Resistance Tolerance, Drift, and Temperature Coefficient Mismatch Considerations RDAC Circuit Simulation Model Outline Dimensions Ordering Guide