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MAX5621 Datasheet(PDF) 1 Page - Maxim Integrated Products |
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MAX5621 Datasheet(HTML) 1 Page - Maxim Integrated Products |
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1 / 16 page  For pricing, delivery, and ordering information, please contact Maxim/Dallas Direct! at 1-888-629-4642, or visit Maxim’s website at www.maxim-ic.com. General Description The MAX5621/MAX5622/MAX5623 are 16-bit digital-to- analog converters (DACs) with 16 sample-and-hold (SHA) outputs for applications where a high number of programmable voltages are required. These devices include a clock oscillator and a sequencer that updates the DAC with codes from an internal SRAM. No external components are required to set offset and gain. The MAX5621/MAX5622/MAX5623 feature a -4.5V to +9.2V output voltage range. Other features include a 200µV/step resolution, with output linearity error, typi- cally 0.005% of full-scale range (FSR). The 100kHz refresh rate updates each SHA every 320µs, resulting in negligible output droop. Remote ground sensing allows the outputs to be referenced to the local ground of a separate device. These devices are controlled through a 20MHz SPI™/QSPI™/MICROWIRE™-compatible 3-wire serial interface. Immediate update mode allows any channel’s output to be updated within 20µs. Burst mode allows multiple values to be loaded into memory in a single, high-speed data burst. All channels are updated within 330µs after data has been loaded. Each device features an output clamp and output resis- tors for filtering. The MAX5621 features a 50Ω output impedance and is capable of driving up to 250pF of out- put capacitance. The MAX5622 features a 500Ω output impedance and is capable of driving up to 10nF of output capacitance. The MAX5623 features a 1kΩ output imped- ance and is capable of driving up to 10nF of output capacitance. The MAX5621/MAX5622/MAX5623 are available in 64-pin TQFP (10mm x 10mm) and 68-pin thin QFN (10mm x 10mm) packages. ________________________Applications MEMS Mirror Servo Control Industrial Process Control Automatic Test Equipment Instrumentation Features ♦ Integrated 16-Bit DAC and 16-Channel SHA with SRAM and Sequencer ♦ 16 Voltage Outputs ♦ 0.005% Output Linearity ♦ 200µV Output Resolution ♦ Flexible Output Voltage Range ♦ Remote Ground Sensing ♦ Fast Sequential Loading: 1.3µs per Register ♦ Burst and Immediate Mode Addressing ♦ No External Components Required for Setting Gain and Offset ♦ Integrated Output Clamp Diodes ♦ Three Output Impedance Options MAX5621 (50Ω), MAX5622 (500Ω), and MAX5623 (1kΩ) 19-2715; Rev 1; 2/05 16-Bit DACs with 16-Channel Sample-and-Hold Outputs ________________________________________________________________ Maxim Integrated Products 1 Pin Configurations Ordering Information SPI and QSPI are trademarks of Motorola, Inc. MICROWIRE is a trademark of National Semiconductor, Corp. PART TEMP RANGE* PIN-PACKAGE MAX5621UCB 0 oC to +85oC 64 TQFP MAX5621UTK 0 oC to +85oC 68 Thin QFN-EP** MAX5622UCB 0 oC to +85oC 64 TQFP MAX5622UTK 0 oC to +85 oC 68 Thin QFN-EP** MAX5623UCB 0 oC to +85oC 64 TQFP MAX5623UTK 0 oC to +85oC 68 Thin QFN-EP** Pin Configurations continued at end of data sheet. 38 39 40 41 42 43 44 45 46 47 THIN QFN TOP VIEW 35 36 37 48 49 50 11 10 9 8 7 6 5 4 3 2 16 15 14 13 12 1 MAX5621 MAX5622 MAX5623 ECLK CH VSS OUT10 N.C. OUT9 N.C. OUT8 AGND VDD N.C. OUT7 N.C. OUT6 N.C. CL IMMED VLOGIC SCLK DIN CS VSS 17 N.C. AGND VLSHA DGND CLKSEL RST VLDAC GS N.C. VDD 51 N.C. N.C. *For other temperature ranges, contact factory. **EP = Exposed pad. |
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