SMP08*
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SMP08FS-REEL (pdf) |
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Octal Sample-and-Hold with Multiplexed Input SMP08* FEATURES Internal Hold Capacitors Low Droop Rate TTL/CMOS Compatible Logic Inputs Single or Dual Supply Operation Break-Before-Make Channel Addressing Compatible With CD4051 Pinout Low Cost APPLICATIONS Multiple Path Timing Deskew for ATE Memory Programmers Mass Flow/Process Control Systems Multichannel Data Acquisition Systems Robotics and Control Systems Medical and Analytical Instrumentation Event Analysis Stage Lighting Control FUNCTIONAL BLOCK DIAGRAM LSB INPUT A C INH 11 10 1 OF 8 DECODER SW 8 DGND 16 VDD 13 CH0OUT 14 CH1OUT 15 CH2OUT 12 CH3OUT 1 CH4OUT 5 CH5OUT GENERAL DESCRIPTION The SMP08 is a monolithic octal sample-and-hold it has eight internal buffer amplifiers, input multiplexer, and internal hold capacitors. It is manufactured in an advanced oxide isolated CMOS technology to obtain high accuracy, low droop rate, and fast acquisition time. The SMP08 has a typical linearity error of only and can accurately acquire a 10-bit input signal to ± 1/2 LSB in less than 7 microseconds. The SMP08’s output swing includes the negative supply in both single and dual supply operation. The SMP08 was specifically designed for systems that use a calibration cycle to adjust a multiple of system parameters. The low cost and high level of integration make the SMP08 ideal for calibration requirements that have previously required an ASIC, or high cost multiple D/A converters. *Protected by U.S. Patent No. SW HOLD CAPS INTERNAL SMP08 2 CH6OUT 4 CH7OUT 7 VSS The SMP08 is also ideally suited for a wide variety of sampleand-hold applications including amplifier offset or VCA gain adjustments. One or more SMP08s can be used with single or multiple DACs to provide multiple set points within a system. The SMP08 offers significant cost and size reduction over discrete designs. It is available in a 16-pin plastic DIP, or surfacemount SOIC package. Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties which may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel 617/329-4700 World Wide Web Site: Fax 617/326-8703 Analog Devices, Inc., 1996 ELECTRICAL CHARACTERISTICS VDD = +5 V, VSS = V, DGND = 0 V, RL = No Load, TA = to for SMP08F, unless otherwise noted Parameter Symbol Conditions Units Linearity Error Buffer Offset Voltage Hold Step Droop Rate Output Source Current Output Sink Current Output Voltage Range ISOURCE ISINK V VIN +3 V TA = +25°C, VIN = 0 V TA +85°C, VIN = 0 V VIN = 0 V, TA = +25°C to +85°C VIN = 0 V, TA = TA = +25°C, VIN = 0 V VIN = 0 V1 VIN = 0 V1 RL = 20 mV/s LOGIC CHARACTERISTICS Logic Input High Voltage Logic Input Low Voltage Logic Input Current VINH VINL IIN ORDERING GUIDE Temperature Range Package Description to +85°C to +85°C Plastic DIP SO-16 Package Option N-16 R-16A PIN CONNECTIONS CH4OUT 1 16 VDD CH6OUT 2 15 CH2OUT INPUT 3 CH7OUT 4 14 CH1OUT SMP08 13 CH0OUT TOP VIEW CH5OUT 5 Not to Scale 12 CH3OUT INH 6 11 A CONTROL VSS 7 10 B CONTROL DGND 8 9 C CONTROL CAUTION ESD electrostatic discharge sensitive device. Electrostatic charges as high as 4000 V readily accumulate on the human body and test equipment and can discharge without detection. Although the SMP08 features proprietary ESD protection circuitry, permanent damage may occur on devices subjected to high energy electrostatic discharges. Therefore, proper ESD precautions are recommended to avoid performance degradation or loss of functionality. WARNING! ESD SENSITIVE DEVICE Performance Characteristics DROOP RATE mV/s 1000 100 VDD = +12V VSS = 0V VIN = +5V RL = 5 25 45 65 85 105 125 TEMPERATURE °C Figure Droop Rate vs. Temperature DROOP RATE mV/s VDD = +12V VSS = 0V TA = +25°C NO LOAD 23 4 5 67 8 INPUT VOLTAGE Volts Figure Droop Rate vs. Input Voltage DROOP RATE mV/s 1800 1600 1400 VDD = +12V VSS = 0V TA = +125°C NO LOAD |
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