EVAL-AD7933CB AD [Analog Devices], EVAL-AD7933CB Datasheet
EVAL-AD7933CB
Related parts for EVAL-AD7933CB
EVAL-AD7933CB Summary of contents
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Preliminary Technical Data FEATURES Fast throughput rate: 1.5 MSPS Specified for Low power 8 mW max at 1.5 MSPS with 3 V supplies 16 mW max at 1.5 MSPS with 5 V ...
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... PrG: Preliminary Version Preliminary Technical Data Analog Input Structure.............................................................. 19 Analog Inputs.............................................................................. 20 Analog Input Selection .............................................................. 22 Reference Section ....................................................................... 22 Parallel Interface......................................................................... 24 Power Modes of Operation....................................................... 27 Power vs. Throughput Rate....................................................... 28 Microprocessor Interfacing....................................................... 28 Application Hints ........................................................................... 30 Grounding and Layout .............................................................. 30 Evaluating the AD7933/AD7934 Performance ...................... 30 Outline Dimensions ....................................................................... 31 Ordering Guide .......................................................................... 31 Rev. PrG | Page ...
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Preliminary Technical Data AD7933—SPECIFICATIONS =2 5.25 V, Internal/External V DD DRIVE T , unless otherwise noted. MAX Table 1. Parameter DYNAMIC PERFORMANCE 2 Signal-to-Noise + Distortion (SINAD) 2 Signal-to-Noise Ratio (SNR) 2 Total Harmonic Distortion ...
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AD7933/AD7934 Parameter V Output Impedance REF V Input Capacitance REF LOGIC INPUTS Input High Voltage, V INH Input Low Voltage, V INL Input Current Input Capacitance LOGIC OUTPUTS Output High Voltage Output Low ...
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Preliminary Technical Data AD7934—SPECIFICATIONS 2 5.25 V, Internal/External V DD DRIVE T , unless otherwise noted. MAX Table 2. Parameter DYNAMIC PERFORMANCE 2 Signal-to-Noise + Distortion (SINAD) 2 Signal-to-Noise Ratio (SNR) 2 Total Harmonic ...
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AD7933/AD7934 Parameter V Output Impedance REF V Input Capacitance REF LOGIC INPUTS Input High Voltage, V INH Input Low Voltage, V INL Input Current Input Capacitance LOGIC OUTPUTS Output High Voltage Output Low ...
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Preliminary Technical Data TIMING SPECIFICATIONS =2 5.25 V, Internal/External V DD DRIVE T , unless otherwise noted. MAX Table 3. Limit MIN MAX Parameter AD7933 AD7934 Unit kHz ...
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AD7933/AD7934 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 4. Parameter V to AGND/DGND AGND/DGND DRIVE Analog Input Voltage to AGND Digital Input Voltage to DGND DRIVE DD Digital Output Voltage ...
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Preliminary Technical Data PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 5. Pin Function Description Pin No. Mnemonic Description 1 V Power Supply Input. The V DD decoupled to AGND with a 0.1 µF capacitor and a 10 µF tantalum capacitor. 2 ...
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AD7933/AD7934 Pin No. Mnemonic Description 20 WR Write Input. Active low logic input used in conjunction with CS to write data to the control register Read Input. Active low logic input used in conjunction with CS to access ...
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AD7933/AD7934 TERMINOLOGY Integral Nonlinearity This is the maximum deviation from a straight line passing through the endpoints of the ADC transfer function. The endpoints of the transfer function are zero scale, a point 1 LSB below the first code transition, ...
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AD7933/AD7934 Total Harmonic Distortion (THD) THD is the ratio of the rms sum of harmonics to the fundamental. For the AD7933/AD7934 defined − THD dB ...
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Preliminary Technical Data TYPICAL PERFORMANCE CHARACTERISTICS T = 25°C, unless otherwise noted. A Figure 3. PSRR vs. Supply Ripple Frequency Without Supply Decoupling Figure 4. Channel-to-Channel Isolation Figure 5. AD7934 SINAD vs. Analog Input Frequency for Various Supply Voltages Figure ...
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AD7933/AD7934 Figure 9. AD7934 Change in INL vs. V Figure 10.AD7934 Change in DNL vs. V Figure 11. AD7934 Change in ENOB vs. V for REF DD for Figure 13. AD7934 Histogram ...
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Preliminary Technical Data Figure 15. AD7933 FFT @ V Figure 16. AD7933 Typical DNL @ Rev. PrG | Page AD7933/AD7934 Figure 17. AD7933 Typical INL @ V = ...
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AD7933/AD7934 CONTROL REGISTER The control register on the AD7933/AD7934 is a 12-bit, write-only register. Data is written to this register using the CS and WR pins. The control register is shown below and the functions of the bits are described ...
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Preliminary Technical Data Table 9. Analog Input Type Selection Channel Address MODE0 = 0, MODE1 = 0 Four Single-Ended I/P Channels ADD1 ADD0 V V IN+ IN− VIN0 AGND 0 1 VIN1 AGND 1 0 VIN2 AGND 1 ...
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AD7933/AD7934 CIRCUIT INFORMATION The AD7933/AD7934 are fast, 4-channel, 12-bit and10-bit, single-supply, successive approximation analog-to-digital converters. The parts operate from either 5.25 V power supply and feature throughput rates up to ...
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Preliminary Technical Data 1 LSB = 2 × V /4096 (AD7934) REF 1 LSB = 2 × V /1024 (AD7933) REF 011...111 011...110 000...001 000...000 111...111 100...010 100...001 100...000 – LSB V REF REF Figure 21. AD7933/AD7934 Ideal ...
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AD7933/AD7934 Figure 24. THD vs. Analog Input Frequency for Various Source Impedances Figure 25 shows a graph of the THD versus the analog input frequency for various supplies, while sampling at 1.5 MHz with an SCLK of 20 MHz. In ...
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Preliminary Technical Data When a conversion takes place, the common mode is rejected resulting in a virtually noise free signal of amplitude −V +V corresponding to the digital codes 1024 for the REF AD7933 and 0 to ...
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AD7933/AD7934 Pseudo-Differential Mode The AD7933/AD7934 can have two pseudo-differential pairs by setting Bits MODE0 and MODE1 in the control register respectively connected to the signal source that must IN have an amplitude of V ...
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Preliminary Technical Data BUFFER REFERENCE V / REFIN V REFOUT ADC Figure 35. Internal Reference Circuit Block Diagram Alternatively, an external reference can be applied to the V /V pin of the AD7933/AD7934. An external REFIN REFOUT reference input is ...
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AD7933/AD7934 Digital Inputs The digital inputs applied to the AD7933/AD7934 are not limited by the maximum ratings that limit the analog inputs. Instead, the digital inputs applied can and are not restricted by the AV + ...
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AD7933/AD7934 Reading Data from the AD7933/AD7934 With the W/ B pin tied logic high, the AD7933/AD7934 interface operates in word mode. In this case, a single read operation from the device accesses the conversion data-word on Pins DB0/DB2 to DB11. ...
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AD7933/AD7934 Writing Data to the AD7933/AD7934 With W/ B tied logic high, a single write operation transfers the full data-word on DB0 to DB11 to the control register on the AD7933/AD7934. The DB8/HBEN pin assumes its DB8 function. Data written ...
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Preliminary Technical Data POWER MODES OF OPERATION The AD7933/AD7934 have four different power modes of operation. These modes are designed to provide flexible power management options. Different options can be chosen to optimize the power dissipation/throughput rate ratio for differing ...
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AD7933/AD7934 POWER VS. THROUGHPUT RATE A big advantage of powering the ADC down after a conversion is that the power consumption of the part is significantly reduced at lower throughput rates. When using the different power modes, the AD7933/AD7934 is ...
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Preliminary Technical Data AD7933/AD7934 to TMS32020, TMS320C25, and TMS320C5x Interface Parallel interfaces between the AD7933/AD7934 and the TMS32020, TMS320C25 and TMS320C5x family of DSPs are shown in Figure 46 . The memory mapped address chosen for the AD7933/AD7934 should be ...
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... PC via the evaluation board controller. The evaluation board controller can be used in conjunction with the AD7933/AD7934 evaluation board, as well as many other ADI evaluation boards ending in the CB designator, to demonstrate/evaluate the ac and dc performance of the AD7933/AD7934. ...
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... Temperature Range AD7934BRU −40°C to +85°C AD7933BRU −40°C to +85°C 2 EVAL-AD7934CB 3 EVAL-AD7933CB 4 EVAL-CONTROL BRD2 1 Linearity error here refers to integral linearity error. 2 This can be used as a standalone evaluation board or in conjunction with the Evaluation Board Controller for evaluation/demonstration purposes. 3 This can be used as a standalone evaluation board or in conjunction with the Evaluation Board Controller for evaluation/demonstration purposes. ...
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AD7933/AD7934 NOTES © 2004 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. PR03713-0-8/04(PrG) Preliminary Technical Data Rev. PrG | Page ...