LTC1450 Datasheet | Linear Technology

Features s s s s s s LTC1450/LTC1450L Parallel Input, 12-Bit Rail-to-Rail Micropower DACs in SSOP DESCRIPTION The LTC®1450/LTC1450L are plete single supply, railto-rail voltage output, 12-bit digital-to-analog converters (DACs) in a 24-pin SSOP or PDIP package. They include an output buffer amplifier, reference and a double buffered parallel digital interface. The LTC1450 operates from a 4.5V to 5.5V supply. The output can be pin strapped for 4.095V or 2.048V full-scale. It has a 2.048V internal reference. The LTC1450L operates from a 2.7V to 5.5V supply. The output can be pin strapped for 2.5V or 1.22V full-scale. It has a 1.22V internal reference. The LTC1450/LTC1450L offer true stand-alone performance. In addition, the reference output, high and low reference inputs and gain setting resistor are brought to pins for maximum flexibility. , LTC and LT are registered trademarks of Linear Technology Corporation. s s s s s U APPLICATIONS s s s s s s Guaranteed Monotonic Buffered True Rail-to-Rail Voltage Output 12-Bit Resolution 3V Operation (LTC1450L) ICC: 250µA Typ 5V Operation (LTC1450) ICC: 400µA Typ Parallel 12-Bit or 8 + 4-Bit Double Buffered Digital Input Internal Reference Output Buffer Configurable to Gain of 1 or 2 Configurable as a Multiplying DAC Internal Power-On Reset Maximum DNL Error: 0.5LSB Digital Calibration Industrial Process Control Automatic Test Equipment Arbitrary Function Generators Battery-Powered Data Conversion Products Feedback Control Loops and Gain Control TYPICAL APPLICATION LTC1450: 5V LTC1450L: 3V TO 5V REFOUT UPPER 4-BIT INPUT LATCH REFERENCE LTC1450: 2.048V LTC1450L: 1.22V 12-BIT DAC LATCH REFHI VCC D11 (MSB) D8 D7 DATA IN FROM MICROPROCESSOR DATA BUS 12-BIT DAC + - VOUT DNL ERROR (LSB) LOWER 8-BIT INPUT LATCH D0 (LSB) CSMSB FROM MICROPROCESSOR DECODE LOGIC WR CSLSB LDAC FROM SYSTEM RESET CLR LTC1450: 0V TO 4.095V LTC1450L: 0V TO 2.5V POWER-ON RESET GND REFLO X1/X2 LTC1450 LTC1450L 1450/50L TA01 Differential...