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MP7613 Datasheet(PDF) 1 Page - Exar Corporation |
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MP7613 Datasheet(HTML) 1 Page - Exar Corporation |
1 / 16 page MP7613 1 Rev. 2.00 FEATURES • Eight Independent Channel 12-Bit DACs with Output Amplifiers • Low Power 320 mW (typ.) • Parallel Digital Data and Address Port • Double Buffered Data Interface • Readback of DAC Latches • Zero Volt Output Preset (Data = 10 .. 00) • 12-Bit Resolution, 11-Bit Accuracy • Extremely Well Matched DACs • Extremely Low Analog Ground Current (<60µA/Channel) Octal 12-Bit DAC ArrayTM D/A Converter with Output Amplifier and Parallel Data/Address µP Control Logic • +10 V Output Swing with +11.4 V Supplies • Rugged Construction – Latch-Up Proof • Serial Version: MP7612 APPLICATIONS • Data Acquisition Systems • ATE • Process Control • Self-Diagnostic Systems • Logic Analyzers • Digital Storage Scopes • PC Based Controller/DAS GENERAL DESCRIPTION The MP7613 provides eight independent 12-bit resolution Digital-to-Analog Converters with voltage output amplifiers and a parallel digital address and data port. Built on using an advanced linear BiCMOS, these devices of- fer rugged solutions that are latch-up free, and take advantage of EXAR’s patented thin-film resistor process which exhibits ex- cellent long term stability and reliability. A standard µ-processor and TTL/CMOS compatible 12-bit in- put data port loads the data into the pre-selected DACS. This device can easily be interfaced to a data bus, and digital readback of each channel is available. Typical DAC matching is 0.7 LSB across all codes. Accuracy of +0.75 LSB for DNL and +1 LSB for INL is achieved for B grade versions. The output amplifier is capable of sinking and sourc- ing 5mA, and the output voltage settles to 12-bits in less than 30 µs (typ.). SIMPLIFIED BLOCK DIAGRAM VO0 VO7 + – + – LAT0B LAT7B VRP VRN VRP VRN DAC0 DAC7 DQ XR XE DQ XR XE 12 12 LAT0A DQ XR XE LAT7A DQ XR XE RB0 RB7 XE0 XE7 VEE VEE VCC VCC AGND AGND VREF DGND DVDD VRP + – VRN VRP 12 Bus I/O DB0 - DB11 12 XE0 - XE7 RB0 - RB7 Control Logic A0 - A2 LD1 RD CS R1 R2 LD2 3 8 8 VREFN |
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