AS1501 – (AS1500 – AS1503) Digital Potentiometer

Part Number : AS1501

Function : (AS1500 – AS1503) Digital Potentiometer

Manufactures : austriamicrosystems AG

Images :

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AS1501 image

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pinout

Description :

Data Sheet AS1500/1/2/3 Digital Potentiometer AS1500/AS1501/AS1502/AS1503 DATASHEET PRELIMINARY FACT SHEET Key Features – – 256-Position Available in four Resistance values – AS1500 resistance 10kOhms – AS1501 resistance 20kOhms – AS1502 resistance 50kOhms – AS1503 resistance 100kOhms Power Shutdown —Less than 1 µA 3-Wire SPI-Compatible Serial Data Input 10 MHz Update Data Loading Rate 2.7 V to 5.5 V Single-Supply Operation Temperature Range –40°C to +125°C Package SO-8 Compatible to AD8400 programming rates up to 10MHz. The AS1500 is available in four different resistor values. The AS1500 incorporates a 10k Ω , the AS1501 a 20k Ω , the AS1502 a 50k Ω and the AS1503 a 100k Ω fixed resistor. The wiper contact taps the fixed resistor at points determined by the 8-bit digital code word. The resistance between the wiper and the endpoint of the resistor is linear. The switching action is performed in a way that no glitches occur. Furthermore the AS150x product family includes a shutdown mode, where it consumes less than 1µA. The AS150x is available in an 8-pin SOIC package. All parts are guaranteed to operate over the extended industrial temperature range of –40°C to +125°C. Applications General Description The AS1500 is a digital potentiometer with 256 programmable steps. The values of the resistor can be controlled via 3 wire serial interface capable to handle – Line Impedance Matching Volume Control, Panning Mechanical Potentiometer Replacement Power Supply Adjustment Programmable Filters, Delays, Time Constants VDD B 1 GND 2 CSN 3 SDI 4 8 A W VDD CK AS150x Top View SDI CK CSN A 10 Bit Serial Latch 8 8-Bit Latch 8 W B 7 6 5 AS1500 GND Figure 1 Pinout andfunctional Block Diagram of Digital Potentiometer AS150x family Revision 1.0, Oct 2004 Page 1 of 8 Data Sheet AS1500/1/2/3 ABSOLUTE MAXIMUM RATINGS (TA = 25°C, unless otherwise noted.) Parameter VDD to GND VA, VB, VW to GND AX – BX, AX – WX, BX – WX Digital Input and Output Voltage to GND Operating Temperature Range Maximum Junction Temperature (TJ max) Storage Temperature Package body temperature 1 Package Power Dissipation ESD 2 Limits –0.3V, +7V 0V, VDD ±20mA 0V, +7V –40°C to +125°C 150°C –65°C to +150°C 260°C (TJ max – TA) / θ JA 1kV Table 1: Absolute Maximum Ratings Pin 1 2 3 4 5 6 7 8 Table Description Terminal B RDAC Ground Chip Select Input, Active Low. When CS returns high, CSN data in the serial input register is loaded into the DAC register. SDI Serial Data Input CK Serial Clock Input, Positive Edge Triggered. Positive power supply, specified for operation at both 3V VDD and 5V. W Wiper RDAC A Terminal A RDAC 2: Pin Function Description Name B GND 1 2 The reflow peak soldering temperature (body temperature) is specified according IPC/JEDEC J-STD-020C “Moisture/Reflow Sensitivity Classification for non hermetic Solid State Surface Mount Devices”. HBM MIL-Std883E 3015.7method […]

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AS1501 Datasheet


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