AD7356BRUZ Analog Devices Inc, AD7356BRUZ Datasheet
AD7356BRUZ
Specifications of AD7356BRUZ
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AD7356BRUZ Summary of contents
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FEATURES Dual 12-bit SAR ADC Simultaneous sampling Throughput rate: 5 MSPS per channel Specified for conversion latency Power dissipation MSPS On-chip reference: 2.048 V ± 0.25%, 6 ppm/°C Dual conversion ...
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AD7356 TABLE OF CONTENTS Features .............................................................................................. 1 Functional Block Diagram .............................................................. 1 General Description ......................................................................... 1 Product Highlights ........................................................................... 1 Revision History ............................................................................... 2 Specifications ..................................................................................... 3 Timing Specifications .................................................................. 5 Absolute Maximum Ratings ............................................................ 6 ESD Caution .................................................................................. 6 ...
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SPECIFICATIONS V = 2.5 V ± 3.6 V, internal reference = 2.048 DRIVE otherwise noted. Table 2. Parameter DYNAMIC PERFORMANCE 2 Signal-to-Noise Ratio (SNR) 2 Signal-to-(Noise and Distortion) (SINAD) 2 Total ...
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AD7356 Parameter LOGIC INPUTS Input High Voltage (V ) INH Input Low Voltage (V ) INL Input Current (I ) IN) Input Capacitance ( LOGIC OUTPUTS Output High Voltage ( Output Low Voltage ( ...
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TIMING SPECIFICATIONS V = 2.5 V ± 3.6 V, internal reference = 2.048 DRIVE Table 3. Parameter Limit MIN MAX f 50 SCLK ...
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AD7356 ABSOLUTE MAXIMUM RATINGS Table 4. Parameter V to AGND, DGND, REFGND AGND, DGND, REFGND DRIVE DRIVE AGND to DGND to REFGND Analog Input Voltages 1 to AGND 2 Digital Input Voltages to ...
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PIN CONFIGURATION AND FUNCTION DESCRIPTIONS Table 5. Pin Function Descriptions Pin No. Mnemonic Description Analog Inputs of ADC A. These analog inputs form a fully differential pair. INA+ INA− REF , REF Reference ...
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AD7356 TYPICAL PERFORMANCE CHARACTERISTICS 0 –20 –40 –60 –80 –100 –120 0 250 500 750 1000 1250 1500 1750 2000 2249 2499 FREQUENCY (kHz) Figure 3. Typical FFT 1.0 0.8 0.6 0.4 0.2 0 –0.2 –0.4 –0.6 –0.8 –1.0 0 ...
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CURRENT LOAD (µA) Figure 9. V vs. Reference Output Current Drive REF 1.0 0.8 0.6 INL MAX 0.4 0.2 DNL MAX 0 INL ...
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AD7356 TERMINOLOGY Integral Nonlinearity (INL) INL 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 (1 LSB below the first code transition) and ...
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Total Harmonic Distortion (THD) THD is the ratio of the rms sum of harmonics to the fundamental. For the AD7356 defined − THD dB 20 log ...
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AD7356 THEORY OF OPERATION CIRCUIT INFORMATION The AD7356 is a high speed, dual, 12-bit, single-supply, succes- sive approximation analog-to-digital converter (ADC). The part operates from a 2.5 V power supply and features throughput rates MSPS. The ...
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For ac applications, removing high frequency components from the analog input signal is recommended by the use low-pass filter on the analog input pins. In applications where harmonic distortion and signal-to-noise ratio are critical, the analog input ...
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AD7356 DRIVING DIFFERENTIAL INPUTS Differential operation requires V and V IN+ simultaneously with two equal signals that are 180° out of phase. Because not all applications have a signal preconditioned for differential operation, there is often a need to perform ...
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MODES OF OPERATION The mode of operation of the AD7356 is selected by controlling the logic state of the CS signal during a conversion. There are three possible modes of operation: normal mode, partial power- down mode, and full power-down ...
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AD7356 FULL POWER-DOWN MODE Full power-down mode is intended for use in applications where throughput rates slower than those in partial power- down mode are required because power-up from a full power- down takes substantially longer than that from a ...
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POWER-UP TIMES The AD7356 has two power-down modes: partial power-down and full power-down, which are described in detail in the Normal Mode, Partial Power-Down Mode, and Full Power-Down Mode sections. This section deals with the power-up time required when coming ...
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AD7356 SERIAL INTERFACE Figure 30 shows the detailed timing diagram for serial interfacing to the AD7356. The serial clock provides the conversion clock and controls the transfer of information from the AD7356 during conversion. The CS signal initiates the data ...
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APPLICATION HINTS GROUNDING AND LAYOUT The analog and digital supplies to the AD7356 are independent and separately pinned out to minimize coupling between the analog and digital sections of the device. The printed circuit board (PCB) that houses the AD7356 ...
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... AD7356 OUTLINE DIMENSIONS 0.15 0.05 ORDERING GUIDE Model Temperature Range 1 AD7356BRUZ −40°C to +85°C 1 AD7356BRUZ-500RL7 −40°C to +85°C 1 AD7356BRUZ-RL −40°C to +85°C 1 AD7356YRUZ −40°C to +125°C 1 AD7356YRUZ-500RL7 −40°C to +125°C 1 AD7356YRUZ-RL −40°C to +125° EVAL-AD7356EDZ 1, 3 ...