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CAT525L-TE10 Datasheet(PDF) 1 Page - Catalyst Semiconductor |
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CAT525L-TE10 Datasheet(HTML) 1 Page - Catalyst Semiconductor |
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1 / 12 page  1 GND CLK CS DI DO VDD PROG RDY/BSY VREF H1 1 2 3 4 5 6 7 10 9 8 20 19 18 17 14 13 12 11 16 15 VREFH2 VREFH4 VREFH3 VREFL1 VREFL2 VREFL4 VREFL3 VOUT1 VOUT2 VOUT3 VOUT4 GND CLK CS DI DO VDD PROG RDY/BSY VREF H1 1 2 3 4 5 6 7 10 9 8 20 19 18 17 14 13 12 11 16 15 VREFH2 VREFH4 VREFH3 VREFL1 VREFL2 VREFL4 VREFL3 VOUT1 VOUT2 VOUT3 VOUT4 SERIAL DATA OUTPUT REGISTER V L1 REF V H1 REF V 1 18 16 15 8 17 OUT V 3 V 4 OUT V 2 OUT OUT DO + – + – + – + – PROG RDY/ BSY PROGRAM CONTROL H.V. CHARGE PUMP DATA CONTROLLER 5 CLK CS 4 6 7 9 V H2 REF V H3 REF V H4 REF 1 220 19 11 12 13 14 V L2 REF V L3 REF V L4 REF NVRAM 24k Ω (ea) WIPER CONTROL REGISTERS AND DI CAT525 Configured Digitally Programmable Potentiometer (DPP™): Programmable Voltage Applications FEATURES s Four 8-bit DPPs configured as programmable voltage sources in DAC-like applications s Independent reference inputs s Buffered wiper outputs s Non-volatile NVRAM memory wiper storage s Output voltage range includes both supply rails s 4 independently addressable buffered output wipers s 1 LSB accuracy, high resolution s Serial Microwire-like interface s Single supply operation: 2.7V - 5.5V s Setting read-back without effecting outputs APPLICATIONS s Automated product calibration s Remote control adjustment of equipment s Offset, gain and zero adjustments in self-calibrating and adaptive control systems s Tamper-proof calibrations s DAC (with memory) substitute DESCRIPTION The CAT525 is a quad 8-bit digitally programmable potentiometer (DPP™) configured for programmable voltage and DAC-like applications. Intended for final calibration of products such as camcorders, fax machines and cellular telephones on automated high volume production lines and systems capable of self calibration, it is also well suited for applications were equipment requiring periodic adjustment is either difficult to access or located in a hazardous environment. The CAT525 offers four independently programmable DPPs each having its own reference inputs and each capable of rail to rail output swing. The wipers are buffered by rail to rail op amps. Wiper settings, stored in non-volatile NVRAM memory, are not lost when the device is powered down and are automatically reinstated when power is returned. Each wiper can be dithered to PIN CONFIGURATION test new output values without effecting the stored settings and stored settings can be read back without disturbing the DPP’s output. Control of the CAT525 is accomplished with a simple 3- wire, Microwire-like serial interface. A Chip Select pin allows several CAT525's to share a common serial interface and communications back to the host controller is via a single serial data line thanks to the CAT525’s Tri- Stated Data Output pin. A RDY/ BSY output working in concert with an internal low voltage detector signals proper operation of non-volatile NVRAM Memory Erase/ Write cycle. The CAT525 is available in the 0 °C to 70°C commercial and -40 °C to 85°C industrial operating temperature ranges and offered in 20-pin plastic DIP and surface mount packages. DIP Package (P, L) SOIC Package (J, W) © 2004 by Catalyst Semiconductor, Inc. Characteristics subject to change without notice CAT525 CAT525 Doc. No. 2001, Rev. E FUNCTIONAL DIAGRAM CAT525 ALO GEN FR TM LEAD FREE |
Similar Part No. - CAT525L-TE10 |
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Similar Description - CAT525L-TE10 |
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