ad7477srt-r2 Analog Devices, Inc., ad7477srt-r2 Datasheet
ad7477srt-r2
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ad7477srt-r2 Summary of contents
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... CS input and once-off conversion control. . The conversion DD One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781.329.4700 Fax: 781.461.3113 in 6-Lead SOT-23 AD7476/AD7477/AD7478 FUNCTIONAL BLOCK DIAGRAM V DD 12-/10-/8-BIT SUCCESSIVE APPROXIMATION ADC SCLK CONTROL SDATA LOGIC CS AD7476/AD7477/AD7478 GND Figure 1. www.analog.com ©2006 Analog Devices, Inc. All rights reserved. ...
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AD7476/AD7477/AD7478 TABLE OF CONTENTS Features .............................................................................................. 1 Applications....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications..................................................................................... 3 AD7476 Specifications................................................................. 3 AD7477 Specifications................................................................. 5 AD7478 Specifications................................................................. 7 Timing Specifications .................................................................. ...
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SPECIFICATIONS AD7476 SPECIFICATIONS A version 2 5. MHz SCLK MHz 600 kSPS, unless otherwise noted; T SCLK SAMPLE Table 1. Parameter DYNAMIC PERFORMANCE 3 Signal-to-(Noise ...
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AD7476/AD7477/AD7478 Parameter LOGIC OUTPUT Output High Voltage Output Low Voltage Floating-State Leakage Current Floating-State Output Capacitance 5 Output Coding CONVERSION RATE Conversion Time Track-and-Hold Acquisition Time Throughput Rate POWER REQUIREMENTS Normal Mode ...
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AD7477 SPECIFICATIONS MHz SCLK Table 2. Parameter DYNAMIC PERFORMANCE Signal-to-(Noise + Distortion) (SINAD) 3 Total Harmonic Distortion (THD) Peak Harmonic or Spurious Noise (SFDR) 3 Intermodulation Distortion (IMD) ...
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AD7476/AD7477/AD7478 Parameter POWER REQUIREMENTS Normal Mode (Static) Normal Mode (Operational) Full Power-Down Mode 5 Power Dissipation Normal Mode (Operational) Full Power-Down 1 Temperature range for A version is −40°C to +85°C; temperature range for S version ...
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AD7478 SPECIFICATIONS MHz SCLK Table 3. Parameter DYNAMIC PERFORMANCE Signal-to-(Noise + Distortion) (SINAD) 3 Total Harmonic Distortion (THD) Peak Harmonic or Spurious Noise (SFDR) Intermodulation Distortion (IMD) 3 ...
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AD7476/AD7477/AD7478 Parameter Power Dissipation 5 Normal Mode (Operational) Full Power-Down 1 Temperature range for A version is −40°C to +85°C; temperature range for S version is −55°C to +125°C. 2 Operational from V = 2.0 V, with input high voltage, ...
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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 5. Parameter V to GND DD Analog Input Voltage to GND Digital Input Voltage to GND Digital Output Voltage to GND Input Current to Any Pin Except Supplies Operating ...
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AD7476/AD7477/AD7478 PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 6. Pin Function Descriptions Pin No. Mnemonic Description 1 V Power Supply Input. The GND Analog Ground. Ground reference point for all circuitry on the part. All analog input signals ...
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TYPICAL PERFORMANCE CHARACTERISTICS –15 –35 –55 –75 –95 –115 0 50 100 150 200 250 300 FREQUENCY (kHz) Figure 4. AD7476 Dynamic Performance at 1 MSPS –15 –35 –55 –75 –95 –115 0 50 100 150 FREQUENCY (kHz) Figure 5. ...
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AD7476/AD7477/AD7478 TERMINOLOGY Integral Nonlinearity This is the maximum deviation from a straight line passing through the endpoints of the ADC transfer function. For the AD7476/AD7477, the endpoints of the transfer function are zero scale, a point ½ LSB below the ...
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THEORY OF OPERATION CIRCUIT INFORMATION The AD7476/AD7477/AD7478 are, respectively, 12-bit, 10-bit, and 8-bit, fast, micropower, single-supply ADCs. The parts can be operated from a 2. 5.25 V supply. When operated from either supply or a ...
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AD7476/AD7477/AD7478 TYPICAL CONNECTION DIAGRAM Figure 14 shows a typical connection diagram for the AD7476/AD7477/AD7478 taken internally from V REF and as such, V should be well decoupled. This provides an DD analog input range ...
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IN –60 –70 –80 – 10kHz IN –100 1 10 100 SOURCE IMPEDANCE (Ω) Figure 16. THD vs. Source Impedance for Various Analog Input Frequencies –50 –55 –60 –65 ...
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AD7476/AD7477/AD7478 Power-Down Mode This mode is intended for use in applications where slower throughput rates are required; either the ADC is powered between each conversion series of conversions can be performed at a high throughput rate and the ...
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Power-Up Time The power-up time of the AD7476/AD7477/AD7478 is typi- cally 1 μs, which means that with any frequency of SCLK MHz, one dummy cycle is always sufficient to allow the device to power up. Once the ...
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AD7476/AD7477/AD7478 SERIAL INTERFACE Figure 23, Figure 24, and Figure 25 show the detailed timing diagrams for serial interfacing to the AD7476, AD7477, and AD7478, respectively. The serial clock provides the conversion clock and controls the transfer of information from the ...
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MICROPROCESSOR INTERFACING The serial interface on the AD7476/AD7477/AD7478 allows the part to be directly connected to a range of many different microprocessors. This section explains how to interface the AD7476/AD7477/AD7478 with some of the more common microcontroller and DSP serial ...
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AD7476/AD7477/AD7478 AD7476/ DSP56xxx AD7477/ AD7478 1 SCLK SCK SRD SDATA CS SC2 1 ADDITIONAL PINS OMITTED FOR CLARITY Figure 28. Interfacing to the DSP56xxx AD7476/AD7477/AD7478 to MC68HC16 Interface The serial peripheral interface (SPI) on the MC68HC16 is configured for master ...
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OUTLINE DIMENSIONS INDICATOR 0.15 MAX 2.90 BSC 2.80 BSC 1.60 BSC PIN 1 0.95 BSC 1.90 1.30 BSC 1.15 0.90 1.45 MAX 0.22 0.08 0.50 SEATING 0.30 PLANE COMPLIANT TO JEDEC STANDARDS MO-178-AB Figure ...
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... AD7477ARTZ-REEL −40°C to +85°C 3 AD7477ARTZ-REEL7 −40°C to +85°C AD7477SRT-500RL7 −55°C to +125°C AD7477SRT-R2 −55°C to +125°C AD7477SRT-REEL −55°C to +125°C AD7477SRT-REEL7 −55°C to +125°C AD7477SRTZ-REEL −55°C to +125°C AD7477SRTZ-REEL7 −55°C to +125°C AD7478ART-500RL7 − ...
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NOTES AD7476/AD7477/AD7478 Rev Page ...
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... AD7476/AD7477/AD7478 NOTES ©2006 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. C01024-0-4/06(E) Rev Page ...