AD7606BSTZ-4RL Analog Devices Inc, AD7606BSTZ-4RL Datasheet

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FEATURES 8/6/4 simultaneously sampled inputs True bipolar analog input ranges: ±10 V, ±5 V Single 5 V analog supply and 2 Fully integrated data acquisition solution Analog input clamp protection Input buffer with 1 MΩ ...

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AD7606/AD7606-6/AD7606-4 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Functional Block Diagram .............................................................. 1 Revision History ............................................................................... 2 General Description ......................................................................... 3 Specifications ..................................................................................... 4 Timing Specifications .................................................................. 7 Absolute Maximum Ratings .......................................................... 11 Thermal Resistance .................................................................... 11 ESD ...

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GENERAL DESCRIPTION 1 The AD7606 /AD7606-6/AD7606-4 are 16-bit, simultaneous sampling, analog-to-digital data acquisition systems (DAS) with eight, six, and four channels, respectively. Each part contains analog input clamp protection, a second-order antialiasing filter, a track-and-hold amplifier, a 16-bit charge redistribution ...

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AD7606/AD7606-6/AD7606-4 SPECIFICATIONS V = 2.5 V external/internal 4. 5. REF CC Table 2. Parameter DYNAMIC PERFORMANCE 2, 3 Signal-to-Noise Ratio (SNR) Signal-to-(Noise + Distortion) (SINAD) Dynamic Range 2 Total Harmonic Distortion (THD) Peak Harmonic ...

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Parameter ANALOG INPUT Input Voltage Ranges Analog Input Current 7 Input Capacitance Input Impedance REFERENCE INPUT/OUTPUT Reference Input Voltage Range DC Leakage Current 7 Input Capacitance Reference Output Voltage Reference Temperature Coefficient LOGIC INPUTS Input High Voltage (V ) INH ...

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AD7606/AD7606-6/AD7606-4 Parameter Power Dissipation Normal Mode (Static) 8 Normal Mode (Operational) Standby Mode Shutdown Mode 1 Temperature range for the B version is −40°C to +85°C. The AD7606 is operational up to 125°C with throughput rates ≤ 160 kSPS, and ...

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TIMING SPECIFICATIONS DRIVE Table 3. Limit at T Parameter Min PARALLEL/SERIAL/BYTE MODE t CYCLE 2 t CONV 3.45 7.87 16. 133 257 ...

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AD7606/AD7606-6/AD7606-4 Limit at T Parameter Min SERIAL READ OPERATION f SCLK 0 SCLK t 0 SCLK t ...

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Limit at T Parameter Min Sample tested during initial release to ensure compliance. All input signals are specified with oversampling mode, typical t for the AD7606-6 and AD7606-4 can be ...

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AD7606/AD7606-6/AD7606-4 CS AND RD DATA: DB[15:0] FRSTDATA CS SCLK OUT D B OUT FRSTDATA CS RD DATA: DB[7:0] FRSTDATA Figure 5. CS and RD , Linked Parallel ...

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ABSOLUTE MAXIMUM RATINGS T = 25°C, unless otherwise noted. A Table 4. Parameter AV to AGND AGND DRIVE 1 Analog Input Voltage to AGND Digital Input Voltage to DGND Digital Output Voltage to GND REFIN to AGND ...

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AD7606/AD7606-6/AD7606-4 PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS ANALOG INPUT DECOUPLING CAP PIN POWER SUPPLY GROUND PIN DATA OUTPUT DIGITAL OUTPUT DIGITAL INPUT REFERENCE INPUT/OUTPUT ANALOG INPUT DECOUPLING CAP PIN POWER SUPPLY GROUND PIN DATA OUTPUT DIGITAL OUTPUT DIGITAL INPUT REFERENCE INPUT/OUTPUT ...

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ANALOG INPUT DECOUPLING CAP PIN POWER SUPPLY GROUND PIN DATA OUTPUT DIGITAL OUTPUT DIGITAL INPUT REFERENCE INPUT/OUTPUT Table 6. Pin Function Descriptions Mnemonic 1 Pin No. Type AD7606 AD7606-6 1, 37, 38 26, 35, ...

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AD7606/AD7606-6/AD7606-4 Mnemonic 1 Pin No. Type AD7606 AD7606 RANGE RANGE CONVST A, CONVST A, CONVST B CONVST RESET RESET 12 DI RD/SCLK RD/SCLK BUSY BUSY 15 ...

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Mnemonic 1 Pin No. Type AD7606 AD7606 DB[6:0] DB[6: DRIVE 24 DO DB7/D A DB7/D OUT 25 DO DB8/D B DB8/D OUT DB[13:9] DB[13:9] 32 DO/DI DB14/ DB14/ ...

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AD7606/AD7606-6/AD7606-4 Mnemonic 1 Pin No. Type AD7606 AD7606-6 43, 46 REF REFGND REFGND 44, 45 REF REFCAPA, REFCAPA, REFCAPB REFCAPB 50 GND V1GND, V1GND, V2GND V2GND AI/GND V3 V3 ...

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TYPICAL PERFORMANCE CHARACTERISTICS 0 AV INTERNAL REFERENCE –20 ±10V RANGE F –40 F 16,384 POINT FFT SNR = 90.17dB –60 THD = –106.25dB –80 –100 –120 –140 –160 –180 0 10k 20k 30k 40k 50k 60k INPUT FREQUENCY (Hz) Figure ...

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AD7606/AD7606-6/AD7606-4 1.00 AV INTERNAL REFERENCE 0.75 ±5V RANGE F T 0.50 0.25 0 –0.25 –0.50 –0.75 –1.00 0 8192 16,384 24,576 32,768 40,960 CODE Figure 17. AD7606 Typical DNL, ±5 V Range –5 –10 200kSPS ...

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RANGE 2 1 10V RANGE 0 –1 –2 –3 200kSPS EXTERNAL REFERENCE –4 –40 –25 – TEMPERATURE (°C) Figure 23. Bipolar Zero Code Error Matching Between Channels –40 ±10V ...

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AD7606/AD7606-6/AD7606-4 100 98 ±10V RANGE 96 94 ±5V RANGE DRIVE T = 25°C A INTERNAL REFERENCE 82 F SCALES WITH OS RATIO SAMPLE 80 OFF OS2 OS4 OS8 OS16 ...

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TERMINOLOGY Integral Nonlinearity 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 ½ LSB below the first code transition; and full scale, at ...

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AD7606/AD7606-6/AD7606-4 THEORY OF OPERATION CONVERTER DETAILS The AD7606/AD7606-6/AD7606-4 are data acquisition systems that employ a high speed, low power, charge redistribution, successive approximation analog-to-digital converter (ADC) and allow the simultaneous sampling of eight/six/four analog input channels. The analog inputs on ...

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Analog Input Antialiasing Filter An analog antialiasing filter (a second-order Butterworth) is also provided on the AD7606/AD7606-6/AD7606-4. Figure 37 and Figure 38 show the frequency and phase response, respectively, of the analog antialiasing filter. In the ±5 V range, the ...

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AD7606/AD7606-6/AD7606-4 INTERNAL/EXTERNAL REFERENCE The AD7606/AD7606-6/AD7606-4 contain an on-chip 2.5 V bandgap reference. The REFIN/REFOUT pin allows access to the 2.5 V reference that generates the on-chip 4.5 V reference internally allows an external reference of 2 ...

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TYPICAL CONNECTION DIAGRAM Figure 43 shows the typical connection diagram for the AD7606/ AD7606-6/AD7606-4. There are four AV part, and each of the four pins should be decoupled using a 100 nF capacitor at each supply pin and a 10 ...

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AD7606/AD7606-6/AD7606-4 CONVERSION CONTROL Simultaneous Sampling on All Analog Input Channels The AD7606/AD7606-6/AD7606-4 allow simultaneous sampling of all analog input channels. All channels are sampled simul- taneously when both CONVST pins (CONVST A, CONVST B) are tied together. A single CONVST ...

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DIGITAL INTERFACE The AD7606/AD7606-6/AD7606-4 provide three interface options: a parallel interface, a high speed serial interface, and a parallel byte interface. The required interface mode is selected via the PAR /SER/BYTE SEL and DB15/BYTE SEL pins. Table 8. Interface Mode ...

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AD7606/AD7606-6/AD7606-4 The CS falling edge takes the data output lines, D out of three-state and clocks out the MSB of the conversion result. The rising edge of SCLK clocks all subsequent data bits onto the serial data outputs ...

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DIGITAL FILTER The AD7606/AD7606-6/AD7606-4 contain an optional digital first-order sinc filter that should be used in applications where slower throughput rates are used or where higher signal-to-noise ratio or dynamic range is desirable. The oversampling ratio of the digital filter ...

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AD7606/AD7606-6/AD7606-4 Figure 49 to Figure 55 illustrate the effect of oversampling on the code spread histogram plot. As the oversample rate is increased, the spread of the codes is reduced. 1000 NO OVERSAMPLING 928 887 F = ...

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When the oversampling mode is selected for the AD7606/ AD7606-6/AD7606-4, it has the effect of adding a digital filter function after the ADC. The different oversampling rates and the CONVST sampling frequency produce different digital filter frequency profiles. Figure 56 ...

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AD7606/AD7606-6/AD7606-4 LAYOUT GUIDELINES The printed circuit board that houses the AD7606/AD7606-6/ AD7606-4 should be designed so that the analog and digital sections are separated and confined to different areas of the board. At least one ground plane should be used. ...

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To ensure good device-to-de vice performance matching in a system that contains multiple AD7606/AD7606-6/AD7606-4 devices, a symmetrical layout between the AD7606/AD7606-6/ AD7606-4 devices is important. Figure 64 shows a layout with two AD7606/AD7606-6/AD7606-4 devices. The AV supply plane runs to ...

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... AD7606BSTZ-RL −40°C to +85°C AD7606BSTZ-6 −40°C to +85°C AD7606BSTZ-6RL −40°C to +85°C AD7606BSTZ-4 −40°C to +85°C AD7606BSTZ-4RL −40°C to +85°C EVAL-AD7606EDZ EVAL-AD7606-6EDZ EVAL-AD7606-4EDZ CED1Z RoHS Compliant Part. 2 The EVAL-AD7606EDZ, EVAL-AD7606-6EDZ, and EVAL-AD7606-4EDZ can be used as standalone evaluation boards or in conjunction with the CED1Z for evaluation/demonstration purposes ...

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NOTES AD7606/AD7606-6/AD7606-4 Rev Page ...

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AD7606/AD7606-6/AD7606-4 NOTES ©2010 Analog Devices, Inc. All rights reserved. Trademarks and registered trademarks are the property of their respective owners. D08479-0-8/10(A) Rev Page ...