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AD7546AQ
0 B$\{) ~lrL CMOS16-Bit VoltageOut DAC* ~ ANALOG W DEVICES AD7546 I FEATURES Monotonic to 16 Bits Over Temperature On-Chip Deglitch Switch Unipolar and Bipolar Operation Microprocessor Compatible TIl/CMOS Compatible latched Inputs Voltage Output (Constant Output Impedance) low Cost low Power Consumption: 50mW typ AD7546 FUNCTIONAL BLOCK DIAGRAM VA'" RI OBS RI VOUT OLE GENERAL DESCRIPTION The AD7546 is a 16-bit voltage-output DAC with input data latches for interfacing to 16-bit microprocessors. It uses a novel design consisting of a 12-bit R-2R DAC, operated in the voltage switching mode, which is supplied with a reference voltage from a 4-bit segment DAC under the control of the four most significant bits. A monolithic CMOS device. the AD7546 offers outstanding differential nonlinearity specifications and monotonicity from 14 to 16 bits. II TE R2 (35: R2 so An on-chip deglitch switch which is synchronized with the latch loading signal is provided for use with track/hold circuits. VA'" ~ SWI swa WR NOTE. SWITCHES ARE SHOWN FOR SEGMENT Lo" INPUT eOOE OF OXXXH. CS 0 OBIS 080 ORDERING INFORMATION PIN CONFIGURATION TemperalUre Range. Package Relative Accuracy :to.OS% :to.OI2% Differential Nonlinearity :to.OO6% :to.OOlS% Plastic 0 to +70.C Ceramic -2S.C to +8S.C AD7S46JN AD7S46KN AD7S46BrJ AD7S46Ap Q . Monotonic Range 14 Bits 16 Bits MSB OB15 f2 PACKAGE IDENTIFICATION 1 "D": - Ceramic DIP (D40A) Suffix Suffix UN": I See Section - Plastic DIP - (N40A) 19 for package outline information. AD7546 TOP VIEW INOT TO SCALE! A2 OUT A2- OBI LSB DBO .Patent Pending. -- I ------ VOUT
AD
Analog Devices
U.S.A
半導体デバイスを製造するアメリカの多国籍企業。特にADC、DAC、MEMS、DSPなどに強い。現在は 65nm から 3μm のプロセスルールの回路を設計している。
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