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MFG:ADI D/C:09
Part Number: AD7476
MFG: ADI
D/C: 09
Description: The AD7476/AD7477/AD7478 are, respectively, 12-bit, 10-bit, and 8-bit, high speed, low power, successi...
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AD7476
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DataSheet
General Description
AD7476 General Description
The AD7476/AD7477/AD7478 are, respectively, 12-bit, 10-bit, and 8-bit, high speed, low power, successive-approximation ADCs. The parts operate from a single 2.35 V to 5.25 V powersupply and feature throughput rates up to 1 MSPS. The parts contain a low noise, wide bandwidth track-and-hold amplifier that can handle input frequencies in excess of 6 MHz.
The conversion process and data acquisition are controlled using CS and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS and the conversion is also initiated at this point. There are no pipeline delays associated with the part.The AD7476/AD7477/AD7478 use advanced design techniques to achieve very low power dissipation at high throughput rates.
The reference for the part is taken internally from VDD. This allows the widest dynamic input range to the ADC. Thus the analog input range for the part is 0 V to VDD. The conversion rate is determined by the SCLK.
AD7476 Maximum Ratings
VDD to GND . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +7 V
Analog Input Voltage to GND . . . . . . .. .0.3 V to VDD + 0.3 V
Digital Input Voltage to GND . . . . . . . . . . . . . . 0.3 V to +7 V
Digital Output Voltage to GND . . . . . . ..0.3 V to VDD + 0.3 V
Input Current to Any Pin Except Supplies2 . . . .. . . . . ±10 mA
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
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . .. . . .150°C
SOT-23 Package
JA Thermal Impedance . . . . . . . . . . . . . . . . . . .... . . 230°C/W
JCThermal Impedance . . . . . . . . . . . . . . . . . . . . . ..... 92°C/W
Lead Temperature, Soldering
Reflow (10 sec to 30 sec) . . . . . . . . . . . . . . ..... . 235 (0/+5)°C
Pb-Free Temperature Soldering
Reflow . . . . . . . . . . . . . . . . . . . . . . . . . . . . ....... . 255 (0/+5)°C
ESD . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . 3.5 kV
AD7476 Features
Fast Throughput Rate: 1 MSPS
Specified for VDDof 2.35V to 5.25V
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 Bandwidth:
70 dB SNR at 100 kHz Input Frequency
Flexible Power/Serial Clock Speed Management
No Pipeline Delays
Specified for VDDof 2.35V to 5.25V
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 Bandwidth:
70 dB SNR at 100 kHz Input Frequency
Flexible Power/Serial Clock Speed Management
No Pipeline Delays
AD7476 Typical Application
Battery-Powered Systems
Personal Digital Assistants
Medical Instruments
Mobile Communications
Instrumentation and Control Systems
Data Acquisition Systems
High Speed Modems
Optical Sensors
Personal Digital Assistants
Medical Instruments
Mobile Communications
Instrumentation and Control Systems
Data Acquisition Systems
High Speed Modems
Optical Sensors
AD7476
PDF/DataSheet Download
- Datasheet: AD7476
- File Size: 238334 KB
- Manufacturer:
- Click here to Download
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