AD5533 Datasheet | Analog Devices

a Features Infinite Sample-and-Hold Capability to ؎0.018% Accuracy High Integration: 32-Channel SHA in 12 ؋ 12 mm2 LFBGA Per Channel Acquisition Time of 16 ␮s max Adjustable Voltage Output Range Output Voltage Span 10 V Output Impedance 0.5 ⍀ Readback Capability DSP-/Microcontroller-patible Serial Interface Parallel Interface Temperature Range - 40؇C to +85؇C APPLICATIONS Level Setting Instrumentation Automatic Test Equipment Industrial Control Systems Data Acquisition Low Cost I/O 32-Channel Infinite Sample-and-Hold AD5533- GENERAL DESCRIPTION The AD5533 bines a 32-channel voltage translation function with an infinite output hold capability. An analog input voltage on the mon input pin, VIN, is sampled and its digital representation transferred to a chosen DAC register. VOUT for this DAC is then updated to reflect the new contents of the DAC register. Channel selection is acplished via the parallel address inputs A0- A4 or via the serial input port. The output voltage range is determined by the offset voltage at the OFFS_IN pin and the gain of the output amplifier. It is restricted to a range from VSS + 2 V to VDD - 2 V because of the headroom of the output amplifier. The device is operated with AVCC = 5 V ± 5%, DVCC = 2.7 V to 5.25 V, VSS = - 4.75 V to - 16.5 V and VDD = 8 V to 16.5 V and requires a stable 3 V reference on REF_IN as well as an offset voltage on OFFS_IN. PRODUCT HIGHLIGHTS 1. Infinite Droopless Sample-and-Hold Capability. 2. The AD5533 is available in a 74-lead LFBGA package with a body size of 12 mm × 12 mm. FUNCTIONAL BLOCK DIAGRAM DVCC AVCC REF IN REF OUT OFFS IN VDD VSS VOUT 0 VIN TRACK / RESET BUSY DAC GND AGND DAC DGND INTERFACE CONTROL LOGIC SYNC / CS VOUT 31 ADC DAC DAC OFFS OUT SER / PAR ADDRESS INPUT REGISTER SCLK D IN D OUT A4 - A0 OFFSET SEL - Protected by U.S. Patent No. 5,969,657; other patents pending. REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no...