AD7983BCPZ-RL Analog Devices Inc, AD7983BCPZ-RL Datasheet
AD7983BCPZ-RL
Specifications of AD7983BCPZ-RL
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AD7983BCPZ-RL Summary of contents
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FEATURES 16-bit resolution with no missing codes Throughput: 1.33 MSPS Low power dissipation: 10.5 mW typical @ 1.33 MSPS INL: ±0.6 LSB typical, ±1.0 LSB maximum SINAD: 91 kHz THD: −115 kHz Pseudo differential ...
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AD7983 TABLE OF CONTENTS Features .............................................................................................. 1 Applications ....................................................................................... 1 Application Diagram ........................................................................ 1 General Description ......................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Timing Specifications ....................................................................... 5 Absolute Maximum Ratings ............................................................ 6 ESD Caution .................................................................................. 6 Pin Configurations ...
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SPECIFICATIONS VDD = 2.5 V, VIO = 2 5.5 V, REF = Table 2. Parameter RESOLUTION ANALOG INPUT Voltage Range Absolute Input Voltage Analog Input CMRR Leakage Current @ 25°C Input Impedance ACCURACY No Missing ...
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AD7983 VDD = 2.5 V, VIO = 2 5.5 V, REF = Table 3. Parameter Conditions REFERENCE Voltage Range Load Current 1.33 MSPS SAMPLING DYNAMICS −3 dB Input Bandwidth Aperture Delay DIGITAL INPUTS Logic Levels ...
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TIMING SPECIFICATIONS T = −40°C to +85°C, VDD = 2. 2.63 V, VIO = 3 5.5 V, unless otherwise noted. See Figure 2 and Figure 3 for load conditions. A Table 4. Parameter Conversion Time: CNV ...
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AD7983 ABSOLUTE MAXIMUM RATINGS Table 5. Parameter Rating Analog Inputs 1 1 IN+, IN− to GND −0 Supply Voltage REF, VIO to GND −0 VDD to GND −0 VDD ...
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PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS REF 1 10 VDD 2 9 AD7983 IN TOP VIEW (Not to Scale) IN– GND 5 6 Figure 4. 10-Lead MSOP Pin Configuration Table 6. Pin Function Descriptions 1 Pin No. ...
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AD7983 TYPICAL PERFORMANCE CHARACTERISTICS VDD = 2.5 V, REF = 5 V, VIO = 3.3 V, unless otherwise noted. 1.25 POSITIVE INL: 0.30LSB NEGATIVE INL: –0.37LSB 1.00 0.75 0.50 0.25 0 –0.25 –0.50 –0.75 –1.00 –1.25 0 16384 32768 CODE ...
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TEMPERATURE (°C) Figure 12. THD vs. Temperature –105 –110 –115 THD –120 SFDR –125 –130 2.5 3.0 3.5 4.0 4.5 REFERENCE VOLTAGE (V) Figure 13. THD, SFDR ...
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AD7983 2.5 I VDD 2.0 1.5 1.0 I REF 0.5 I VIO 0 2.375 2.425 2.475 2.525 V VOLTAGE (V) DD Figure 18. Operating Currents vs. Supply 2.5 I VDD 2.0 1.5 1.0 I REF 0.5 I VIO 0 –55 ...
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TERMINOLOGY Integral Nonlinearity Error (INL) INL refers to the deviation of each individual code from a line drawn from negative full scale through positive full scale. The point used as negative full scale occurs ½ LSB before the first code ...
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AD7983 THEORY OF OPERATION IN+ 32,768C REF GND 32,768C IN– CIRCUIT INFORMATION The AD7983 is a fast, low power, single-supply, precise 16-bit ADC that uses a successive approximation architecture. The AD7983 is capable of converting 1,000,000 samples per second (1 ...
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Transfer Functions The ideal transfer characteristic for the AD7983 is shown in Figure 22 and Table 7. 111 ... 111 111 ... 110 111 ... 101 000 ... 010 000 ... 001 000 ... 000 –FSR –FSR + 1LSB –FSR ...
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AD7983 ANALOG INPUTS Figure 24 shows an equivalent circuit of the input structure of the AD7983. The two diodes, D1 and D2, provide ESD protection for the analog inputs, IN+ and IN−. Care must be taken to ensure that the ...
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VOLTAGE REFERENCE INPUT The AD7983 voltage reference input, REF, has a dynamic input impedance and should therefore be driven by a low impedance source with efficient decoupling between the REF and GND pins, as explained in the Layout section. When ...
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AD7983 DIGITAL INTERFACE Though the AD7983 has a reduced number of pins, it offers flexibility in its serial interface modes. When in CS mode, the AD7983 is compatible with SPI, QSPI, and digital hosts. This interface can use either a ...
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CS MODE, 3-WIRE WITHOUT BUSY INDICATOR This mode is usually used when a single AD7983 is connected to an SPI-compatible digital host. The connection diagram is shown in Figure 26, and the corresponding timing is given in Figure 27. With ...
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AD7983 CS MODE, 3-WIRE WITH BUSY INDICATOR This mode is usually used when a single AD7983 is connected to an SPI-compatible digital host that has an interrupt input. The connection diagram is shown in Figure 28, and the corresponding timing ...
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CS MODE, 4-WIRE WITHOUT BUSY INDICATOR This mode is usually used when multiple AD7983s are connected to an SPI-compatible digital host. A connection diagram example using two AD7983s is shown in Figure 30, and the corresponding timing is given in ...
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AD7983 CS MODE, 4-WIRE WITH BUSY INDICATOR This mode is usually used when a single AD7983 is connected to an SPI-compatible digital host that has an interrupt input, and when it is desired to keep CNV, which is used to ...
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CHAIN MODE WITHOUT BUSY INDICATOR This mode can be used to daisy-chain multiple AD7983s on a 3-wire serial interface. This feature is useful for reducing component count and wiring connections, for example, in isolated multiconverter applications or for systems with ...
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AD7983 CHAIN MODE WITH BUSY INDICATOR This mode can also be used to daisy-chain multiple AD7983s on a 3-wire serial interface while providing a busy indicator. This feature is useful for reducing component count and wiring connections, for example, in ...
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APPLICATION HINTS LAYOUT The printed circuit board (PCB) that houses the AD7983 should be designed so that the analog and digital sections are separated and confined to certain areas of the board. The pinout of the AD7983, with all its ...
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... Temperature Range AD7983BRMZ −40°C to +85°C AD7983BRMZRL7 −40°C to +85°C AD7983BCPZ-R2 −40°C to +85°C AD7983BCPZ-RL −40°C to +85°C AD7983BCPZ-RL7 −40°C to +85°C 2 EVAL-AD7983CBZ 3 EVAL-CONTROL BRD RoHS Compliant Part. 2 This board can be used as a standalone evaluation board or in conjunction with the EVAL-CONTROL BRD3 for evaluation/demonstration purposes. ...