AD7476ART-REEL AD [Analog Devices], AD7476ART-REEL Datasheet
AD7476ART-REEL
Related parts for AD7476ART-REEL
AD7476ART-REEL Summary of contents
Page 1
FEATURES Fast Throughput Rate: 1 MSPS Specified for Low Power: 3.6 mW Typ at 1 MSPS with 3 V Supplies 15 mW Typ at 1 MSPS with 5 V Supplies Wide Input ...
Page 2
AD7476–SPECIFICATIONS Parameter DYNAMIC PERFORMANCE 3 Signal-to-(Noise + Distortion) (SINAD) 3 Signal-to-Noise Ratio (SNR) 3 Total Harmonic Distortion (THD) 3 Peak Harmonic or Spurious Noise (SFDR) 3 Intermodulation Distortion (IMD) Second-Order Terms Third-Order Terms Aperture Delay Aperture Jitter Full Power Bandwidth ...
Page 3
AD7477–SPECIFICATIONS Parameter DYNAMIC PERFORMANCE Signal-to-(Noise + Distortion) (SINAD) Total Harmonic Distortion (THD) Peak Harmonic or Spurious Noise (SFDR) Intermodulation Distortion (IMD) Second-Order Terms Third-Order Terms Aperture Delay Aperture Jitter Full Power Bandwidth DC ACCURACY Resolution Integral Nonlinearity Differential Nonlinearity Offset ...
Page 4
AD7476–SPECIFICATIONS 8 Parameter DYNAMIC PERFORMANCE Signal-to-(Noise + Distortion) (SINAD) Total Harmonic Distortion (THD) Peak Harmonic or Spurious Noise (SFDR) Intermodulation Distortion (IMD) Second-Order Terms Third-Order Terms Aperture Delay Aperture Jitter Full Power Bandwidth DC ACCURACY Resolution Integral Nonlinearity Differential Nonlinearity ...
Page 5
TIMING SPECIFICATIONS Limit MIN AD7476/AD7477/AD7478 3 Parameter SCLK × × CONVERT SCLK QUIET t ...
Page 6
... Digital Output Voltage to GND . . . . . . –0 Input Current to Any Pin Except Supplies Operating Temperature Range Commercial (A, B Versions –40°C to +85°C Military (S Version –55°C to +125°C Storage Temperature Range . . . . . . . . . . . . –65°C to +150°C Model AD7476ART-500RL7 AD7476ART-REEL AD7476ART-REEL7 3 AD7476ARTZ-500RL7 3 AD7476ARTZ-REEL 3 AD7476ARTZ-REEL7 AD7476BRT-REEL AD7476BRT-REEL7 ...
Page 7
Pin No. Mnemonic Function 1 V Power Supply Input. The GND Analog Ground. Ground reference point for all circuitry on the AD7476/AD7477/AD7478. All analog input signals should be referred to this GND voltage Analog Input. ...
Page 8
AD7476/AD7477/AD7478 TERMINOLOGY Integral Nonlinearity This is the maximum deviation from a straight line passing through the endpoints of the ADC transfer function. For the AD7476/ AD7477, the endpoints of the transfer function are zero scale, a point 1/2 LSB below ...
Page 9
Typical Performance Characteristics–AD7476/AD7477/AD7478 0 –15 –35 –55 –75 –95 –115 50 100 150 200 250 300 0 FREQUENCY – kHz TPC 1. AD7476 Dynamic Performance at 1 MSPS –15 –15 –35 –55 –75 –95 –115 0 50 100 150 FREQUENCY ...
Page 10
AD7476/AD7477/AD7478 CIRCUIT INFORMATION The AD7476/AD7477/AD7478 are, respectively, 12-bit, 10-bit, and 8-bit, fast, micropower, single-supply ADCs. The parts can be operated from a 2. 5.25 V supply. When operated from either supply ...
Page 11
Alternatively, because the supply current required by the AD7476/AD7477/AD7478 is so low, a precision reference can be used as the supply source to the AD7476/AD7477/AD7478. A REF19x voltage reference (REF195 for REF193 for 3 V) can be ...
Page 12
AD7476/AD7477/AD7478 –50 –55 –60 –65 V –70 DD –75 –80 –85 –90 10k 100k INPUT FREQUENCY – Hz Figure 9. THD vs. Analog Input Frequency, f –72 –74 –76 –78 –80 –82 –84 10k 100k INPUT FREQUENCY – Hz Figure ...
Page 13
THE PART BEGINS TO POWER SCLK SDATA INVALID DATA conversion result. CS may idle high until the next conversion or may idle low until CS returns high sometime prior to the next conversion (effectively idling CS ...
Page 14
AD7476/AD7477/AD7478 POWER VS. THROUGHPUT RATE By using the Power-Down mode on the AD7476/AD7477/AD7478 when not converting, the average power consumption of the ADC decreases at lower throughput rates. Figure 14 shows how as the throughput rate is reduced, the device ...
Page 15
SCLK THREE- STATE Z ZERO ZERO SDATA 4 LEADING ZEROS Figure 15. AD7476 Serial Interface Timing Diagram SCLK THREE- STATE Z ZERO ZERO SDATA 4 LEADING ...
Page 16
AD7476/AD7477/AD7478 MICROPROCESSOR INTERFACING The serial interface on the AD7476/AD7477/AD7478 allows the part to be directly connected to a range of many different microprocessors. This section explains how to interface the AD7476/AD7477/AD7478 with some of the more common microcontroller and DSP ...
Page 17
AD7476/AD7477/AD7478 to DSP56xxx Interface The connection diagram in Figure 20 shows how the AD7476/ AD7477/AD7478 can be connected to the SSI (Synchronous Serial Interface) of the DSP56xxx family of DSPs from Motorola. The SSI is operated in Synchronous Mode (SYN ...
Page 18
AD7476/AD7477/AD7478 0.15 MAX OUTLINE DIMENSIONS 6-Lead Plastic Surface-Mount Package [SOT-23] (RT-6) Dimensions shown in millimeters 2.90 BSC 2.80 BSC 1.60 BSC PIN 1 0.95 BSC 1.90 1.30 BSC 1.15 0.90 1.45 MAX 0.22 0.08 ...
Page 19
Revision History Location 3/04—Data Sheet changed from REV REV. D. Added U.S. Patent number . . . . . . . . . . . . . . . . . . . . . . . . ...
Page 20
–20– ...