LTC1662 Linear Technology, LTC1662 Datasheet

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... DAC without interrupting Sleep mode. With its ultralow operating current and exceptionally small size, the LTC1662 is ideal for use in battery- powered products. The LTC1662 is pin- and software-compatible with the LTC1661 micropower dual 10-bit DAC available in 8-pin MSOP and PDIP packages and is specified over the industrial temperature range ...

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... Input Voltage Range Input Resistance Active Mode Sleep Mode Input Capacitance Operating Temperature Range LTC1662C ............................................. 0.3V) LTC1662I ........................................... – Lead Temperature (Soldering, 10 sec)................ 300 ORDER PART NUMBER CS/LD LTC1662CMS8 SCK LTC1662IMS8 D IN REF MS8 PART MARKING ...

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... CC = 2. GND The denotes the specifications which apply over the full operating temperature = CONDITIONS (Note 6) (Note 6) (Note 6) (Note 6) (Note 6) (Note 6) (Note 6) Square Wave (Note 6) (Note 6) (Note 6) (Note 6) (Note 6) LTC1662 = 2.7V to 5.5V Unloaded CC REF CC OUT MIN TYP MAX 2.7 5.5 3.0 4.0 3.5 4.5 5.0 5.5 0.05 0.10 0.18 5 ...

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... LTC1662 CHARACTERISTICS range, otherwise specifications are SYMBOL PARAMETER t CS/LD Pulse Width 5 t LSB SCK High to CS/LD High 6 t CS/LD Low to SCK High 7 t SCK Low to CS/LD Low 9 t CS/LD High to SCK Positive Edge 11 SCK Frequency Note 1: Absolute maximum ratings are those values beyond which the life of a device may be impaired ...

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... Reserved Reserved Reserved Reserved Update Outputs Wake Update Outputs Wake Update Outputs Wake Reserved Reserved No Update Wake No Update Sleep Update Outputs Wake LTC1662 DON’T CARE (INSTRUCTION EXECUTED) COMMENTS No Operation. Power-Down Status Unchanged (Part Stays In Wake or Sleep Mode) Load Input Register A with Data ...

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... LTC1662 CTIO S CS/LD (Pin 1): Serial Interface Chip Select/Load Input. When CS/LD is low, SCK is enabled for shifting data on D into the register. When CS/LD is pulled high, SCK is disabled and the operation(s) specified in the Control code, A3-A0, is (are) performed. CMOS and TTL compat- ible. SCK (Pin 2): Serial Interface Clock Input. CMOS and TTL compatible ...

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... DAC input code D9-D0 and V is the voltage at REF (Pin 6). REF Power-On Reset The LTC1662 positively clears the outputs to zero scale when power is first applied, making system initialization consistent and repeatable. Power Supply Sequencing The voltage at REF (Pin 4) should be kept within the range – ...

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... LTC1662 U OPERATIO Voltage Outputs Each of the rail-to-rail output amplifiers contained in the LTC1662 can typically source or sink up to 1mA (V = 5V). The outputs swing to within a few millivolts CC of either supply when unloaded and have an equivalent output resistance of 85 (typical) when driving a load to the rails ...

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... U TYPICAL APPLICATIO Using the LTC1258 and the LTC1662 In a Portable Application Powered by a Single Li-Ion Battery. Total Supply Current Is 8.2 A Li-ION BATTERY INPUT LTC1258-4.1 V 4.3V IN 0 REF V OUT A 4.096V LTC1662 2 SCK 1 CS/LD V OUT B GND 7 LTC1662 4.096V ...

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... LTC1662 PACKAGE DESCRIPTIO 0.007 (0.18) * DIMENSION DOES NOT INCLUDE MOLD FLASH, PROTRUSIONS OR GATE BURRS. MOLD FLASH, PROTRUSIONS OR GATE BURRS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ** DIMENSION DOES NOT INCLUDE INTERLEAD FLASH OR PROTRUSIONS. INTERLEAD FLASH OR PROTRUSIONS SHALL NOT EXCEED 0.006" (0.152mm) PER SIDE ...

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... PDIP (Narrow 0.300) (LTC DWG # 05-08-1510) (10.160 0.255 0.015* (6.477 0.381 0.045 – 0.065 (1.143 – 1.651) 0.065 (1.651) TYP 0.100 (2.54) BSC LTC1662 0.400* MAX 0.130 0.005 (3.302 0.127) 0.125 0.020 (3.175) MIN (0.508) MIN 0.018 0.003 (0.457 0.076) ...

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... U TYPICAL APPLICATIO Micropower Trim Circuit with Coarse/Fine Adjustment. Total Supply Current Is 9.5 A 3.3V 0 LTC1258-2.5 2.5V 4 REF DAC A 1 CS/LD LTC1662 SCK DAC B 7 GND RELATED PARTS PART NUMBER DESCRIPTION LTC1661 Dual 10-Bit V DAC in 8-Lead MSOP Package OUT LTC1663 Single 10-Bit V ...