EVAL-AD7656-1SDZ Analog Devices, EVAL-AD7656-1SDZ Datasheet
EVAL-AD7656-1SDZ
Specifications of EVAL-AD7656-1SDZ
Related parts for EVAL-AD7656-1SDZ
EVAL-AD7656-1SDZ Summary of contents
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... Rev. D 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 that may result from its use. Specifications subject to change without notice. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. ...
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AD7656-1/AD7657-1/AD7658-1 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 AD7656-1 ...................................................................................... 3 AD7657-1 ...................................................................................... 5 AD7658-1 ...................................................................................... 7 Timing ...
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Data Sheet SPECIFICATIONS AD7656 2.5 V internal/external 4. 5. REF 16 − −16.5 V; for the ±2 × unless ...
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AD7656-1/AD7657-1/AD7658-1 Parameter LOGIC INPUTS Input High Voltage (V ) INH Input Low Voltage (V ) INL Input Current ( Input Capacitance ( LOGIC OUTPUTS Output High Voltage ( Output Low Voltage (V ) ...
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Data Sheet AD7657 2.5 V internal/external 4. 5. REF 16 − −16.5 V; for the ±2 × unless otherwise ...
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AD7656-1/AD7657-1/AD7658-1 Parameter Min LOGIC OUTPUTS Output High Voltage ( Output Low Voltage ( Floating-State Leakage Current Floating-State Output Capacitance 2 Output Coding CONVERSION RATE Conversion Time Track-and-Hold Acquisition Time 1, 2 Throughput Rate POWER REQUIREMENTS ...
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Data Sheet AD7658 2.5 V internal/external 4. 5. REF − −16.5 V; for ±2 × unless otherwise noted. Table 3. Parameter Min ...
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AD7656-1/AD7657-1/AD7658-1 Parameter Min LOGIC OUTPUTS Output High Voltage ( Output Low Voltage ( Floating-State Leakage Current Floating-State Output Capacitance 2 Output Coding CONVERSION RATE Conversion Time Track-and-Hold Acquisition Time 1, 2 Throughput Rate POWER REQUIREMENTS ...
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Data Sheet TIMING SPECIFICATIONS AV and unless otherwise noted. A MIN MAX Table 4. Parameter 1 V DRIVE PARALLEL INTERFACE t 3 CONVERT ...
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AD7656-1/AD7657-1/AD7658-1 ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 5. Parameter V to AGND, DGND AGND, DGND AGND, DGND ...
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Data Sheet PIN CONFIGURATION AND FUNCTION DESCRIPTIONS DB14/REFBUF DB10/DOUT C DB9/DOUT B DB8/DOUT A DB7/HBEN/DCEN Table 7. Pin Function Descriptions Pin No. Mnemonic 54, 56, 58 REFCAPA, REFCAPB, REFCAPC 33, 36, 39 42, 45, 48 32, 37, ...
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AD7656-1/AD7657-1/AD7658-1 Pin No. Mnemonic WR/REF EN/ DIS 18 BUSY 51 REFIN/REFOUT 61 SER/PAR SEL 17 DB0/SEL A 16 DB1/SEL B 15 DB2/SEL C 14 DB3/DCIN C 13 DB4/DCIN B 12 DB5/DCIN A 11 DB6/SCLK 10 ...
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Data Sheet Pin No. Mnemonic 7 DB8/DOUT A 6 DB9/DOUT B 5 DB10/DOUT C 4 DB11 DB13, DB12, DB15 1 DB14/REFBUF EN /DIS 28 RESET 27 RANGE STBY 62 H/S ...
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AD7656-1/AD7657-1/AD7658-1 TYPICAL PERFORMANCE CHARACTERISTICS –20 ±10V RANGE INTERNAL REFERENCE – –60 SNR = 88.44dB SINAD = 88.43dB –80 THD = –111.66dB –100 –120 –140 –160 –180 FREQUENCY (kHz) Figure 4. ...
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Data Sheet 1 ±12V / 0 DRIVE f = 250kSPS SAMPLE ±5V RANGE 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 500 1000 1500 2000 2500 CODE ...
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AD7656-1/AD7657-1/AD7658-1 2.510 AV / DRIVE ±12V DD SS 2.508 2.506 2.504 2.502 2.500 2.498 2.496 2.494 2.492 –55 –35 – TEMPERATURE (°C) Figure 16. Reference Voltage vs. Temperature 3.20 ...
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Data Sheet 120 110 100 / DRIVE ±12V 25° INTERNAL REFERENCE ±2 × V RANGE REF 30kHz ON SELECTED CHANNEL ...
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AD7656-1/AD7657-1/AD7658-1 TERMINOLOGY Integral Nonlinearity (INL) 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 at a ½ LSB below the first code transition and ...
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Data Sheet Figure 19 shows the power supply rejection ratio vs. supply ripple frequency for the AD7656-1/AD7657-1/AD7658-1. The power supply rejection ratio is defined as the ratio of the power in the ADC output at full-scale frequency the ...
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AD7656-1/AD7657-1/AD7658-1 THEORY OF OPERATION CONVERTER DETAILS The AD7656-1/AD7657-1/AD7658-1 are pin- and software- compatible, reduced decoupling versions of the AD7656/AD7657/ AD7658 devices. In addition, the AD7656-1/AD7657-1/AD7658-1 are high speed, low power converters that allow the simultaneous sampling of six on-chip ADCs. ...
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Data Sheet ADC TRANSFER FUNCTION The output coding of the AD7656-1/AD7657-1/AD7658-1 is twos complement. The designed code transitions occur midway between successive integer LSB values, that is, 1⁄2 LSB, 3⁄2 LSB. The LSB size is FSR/65,536 for the AD7656-1, FSR/16,384 ...
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AD7656-1/AD7657-1/AD7658 SUPPLY VOLTAGE 5V 1 +9.5V TO +16.5V SUPPLY 1µF 1µF 2.5V REF 1µF SIX ANALOG 1 –9.5V TO –16.5V SUPPLY 1µF 1 SEE POWER SUPPLY CONFIGURATION SECTION. The V supply is connected to the ...
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Data Sheet further CONVST rising edges on any of the CONVST pins are ignored while BUSY is high. Data can be read from the AD7656-1/AD7657-1/AD7658-1 via the parallel data bus with standard CS and RD signals ( ...
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AD7656-1/AD7657-1/AD7658-1 SOFTWARE SELECTION OF ADCS The H /S SEL pin determines the source of the combination of ADCs that are to be simultaneously sampled. When the H /S SEL pin is logic low, the combination of channels to be simultaneously ...
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Data Sheet CHANGING THE ANALOG INPUT RANGE (H/S SEL = 0) The AD7656-1/AD7657-1/AD7658-1 RANGE pin allows the user to select either ±2 × ±4 × V REF REF range for the six analog inputs. When the H /S ...
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AD7656-1/AD7657-1/AD7658-1 The first bit of the conversion result is valid on the first SCLK falling edge after the CS falling edge. The subsequent 15 data bits are clocked out on the rising edge of the SCLK signal. Data is valid ...
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Data Sheet DAISY-CHAIN MODE (DCEN = 1, SER/PAR SEL = 1) When reading conversion data back from the AD7656-1/AD7657-1/ AD7658-1 using one/two/three DOUT pins possible to configure the parts to operate in daisy-chain mode by using the DCEN ...
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AD7656-1/AD7657-1/AD7658-1 CONVST AD7656-1/ AD7657-1/ AD7658-1 SCLK DCEN = 0 DEVICE 2 CONVST A, CONVST B, CONVST C BUSY SCLK DEVICE 1, DOUT A MSB V1 DEVICE 1, DOUT B MSB V3 DEVICE 2, DOUT A MSB ...
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Data Sheet APPLICATION HINTS LAYOUT Design the printed circuit board (PCB) that houses the AD7656-1/ AD7657-1/AD7658-1 so that the analog and digital sections are separated and confined to different areas of the board. Use at least one ground plane. It ...
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... This can be used as a standalone evaluation board or in conjunction with the EVAL-CONTROL board for evaluation/demonstration purposes. 3 This board is a complete unit allowing control and communicate with all Analog Devices, Inc., evaluation boards ending in the CB designators. To order a complete evaluation kit, the particular ADC evaluation board, for example, EVAL-AD7656-1/AD7657-1/AD7658-1CB, the EVAL-CONTROL BRD2, and transformer must be ordered ...
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Data Sheet NOTES AD7656-1/AD7657-1/AD7658-1 Rev Page ...
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... AD7656-1/AD7657-1/AD7658-1 NOTES ©2008–2012 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D07017-0-3/12(D) Rev Page Data Sheet ...