HomedatasheetDAC0830LCJ

DAC0830LCJ Datasheet

DAC0830 - 8-bit Microprocessor Compatible, Double-buffered D/A Converter, Package: Mdip, Pin Nb=20
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Description

Features, Applications

The is an advanced CMOS/Si-Cr 8-bit multiplying DAC designed to interface directly with the � , and other popular microprocessors. A deposited silicon-chromium R-2R resistor ladder network divides the reference current and provides the circuit with excellent temperature tracking characteristics (0.05% of Full Scale Range maximum linearity error over temperature). The circuit uses CMOS current switches and control logic to achieve low power consumption and low output leakage current errors. Special circuitry provides TTL logic input voltage level compatibility. Double buffering allows these DACs to output a voltage corresponding to one digital word while holding the next digital word. This permits the simultaneous updating of any number of DACs. The DAC0830 series are the 8-bit members of a family of microprocessor-compatible DACs (MICRO-DACTM).

Features

n Double-buffered, single-buffered or flow-through digital data inputs n Easy interchange and pin-compatible with 12-bit DAC1230 series n Direct interface to all popular microprocessors n Linearity specified with zero and full scale adjust only NOT BEST STRAIGHT LINE FIT. n Works with � 10V reference-full 4-quadrant multiplication n Can be used in the voltage switching mode n Logic inputs which meet TTL voltage level specs (1.4V logic threshold) n Operates "STAND ALONE" (without �P) if desired n Available in 20-pin small-outline or molded chip carrier package

Current settling time: 1 �s Resolution: 8 bits Linearity: or 10 bits (guaranteed over temp.) Gain Tempco: 0.0002% FS/�C Low power dissipation: 20 mW Single power supply: to 15 VDC

BI-FETTM and MICRO-DACTM are trademarks of National Semiconductor Corporation. is a registered trademark of Zilog Corporation.

Dual-In-Line Package (plastic) Dual-In-Line Package (ceramic) Surface Mount Package Vapor Phase (60 sec.) Infrared (15 sec.)

If Military/Aerospace specified devices are required, please contact the National Semiconductor Sales Office/ Distributors for availability and specifications. Supply Voltage (VCC) Voltage at Any Digital Input Voltage at VREF Input Storage Temperature Range Package Dissipation TA =25�C (Note 3) DC Voltage Applied or IOUT2 (Note 4) ESD Susceptability (Note 4) Lead Temperature (Soldering, 10 sec.) mV to VCC mW 17 VDC VCC to GND

Temperature Range Part numbers with "LCN" suffix Part numbers with "LCWM" suffix Part numbers with "LCV" suffix Part numbers with "LCJ" suffix Part numbers with "LJ" suffix Voltage at Any Digital Input TMINTATMAX to +125�C VCC to GND

VREF =10.000 VDC unless otherwise noted. Boldface limits apply over temperature, TMINTATMAX. For all other limits TA =25�C. VCC = 4.75 VDC VCC = 15.75 VDC Tested Limit (Note 5) 8 VCC = 5 VDC � 5% VCC = 12 VDC to 15 VDC � 5% Design Limit (Note 6) 8

Typ (Note 12) CONVERTER CHARACTERISTICS Resolution Linearity Error Max DAC0830LJ & LCJ DAC0832LJ & LCJ DAC0830LCN, LCWM & LCV DAC0831LCN DAC0832LCN, LCWM & LCV Differential Nonlinearity Max DAC0830LJ & LCJ DAC0832LJ & LCJ DAC0830LCN, LCWM & LCV DAC0831LCN DAC0832LCN, LCWM & LCV Monotonicity -10VVREF +10V Gain Error Max Gain Error Tempco Max LJ & LCJ LCN, LCWM & LCV 7 4 Zero and full scale adjusted 4, 8 Zero and full scale adjusted 4, 8


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