Purchase AD7278, In-stock AD7278 From SeekIC.
MFG:ADI D/C:09
Part Number: AD7278
MFG: ADI
D/C: 09
Description: The AD7276/AD7277/AD7278 are 12-bit, 10-bit and 8bit, high speed, low power, successive-approximation ADCs respectively...
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AD7278
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DataSheet
General Description
AD7278 General Description
The AD7276/AD7277/AD7278 are 12-bit, 10-bit and 8bit, high speed, low power, successive-approximation ADCs respectively. The parts operate from a single 2.35V to 3.6 V power supply and feature throughput rates up to 3 MSPS. The parts contain a low-noise, wide bandwidth track/hold amplifier which can handle input frequencies in excess of TBD 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 AD7276/AD7277/AD7278 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 to VDD. The conversion rate is determined by the SCLK.
AD7278 Maximum Ratings
VDD to GND...................................... -0.3 V to TBD V
Analog Input Voltage to GND..... 0.3 V to VDD+ 0.3 V
Digital Input Voltage to GND.............. 0.3 V to TBD 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 (B Grade)...................... 40°C to +85°C
Storage Temperature Range...........65°C to +150°C
Junction Temperature.........................................150°C
6-lead TSOT Package
JAThermal Impedance.................................. TBD°C/W
JC Thermal Impedance............................... TBD°C/W
8-lead MSOP Package
JAThermal Impedance.................................205.9°C/W
JCThermal Impedance............................... 43.74°C/W
Lead Temperature Soldering
Reflow (10- 30 sec) ................................... +TBD°C
ESD................................................................. TBD KV
Analog Input Voltage to GND..... 0.3 V to VDD+ 0.3 V
Digital Input Voltage to GND.............. 0.3 V to TBD 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 (B Grade)...................... 40°C to +85°C
Storage Temperature Range...........65°C to +150°C
Junction Temperature.........................................150°C
6-lead TSOT Package
JAThermal Impedance.................................. TBD°C/W
JC Thermal Impedance............................... TBD°C/W
8-lead MSOP Package
JAThermal Impedance.................................205.9°C/W
JCThermal Impedance............................... 43.74°C/W
Lead Temperature Soldering
Reflow (10- 30 sec) ................................... +TBD°C
ESD................................................................. TBD KV
AD7278 Features
Fast Throughput Rate: 3MSPS
Specified for VDD of 2.35V to 3.6V
Low Power:
13.5 mW max at 3MSPS with 3V Supplies
TBD mW typ at 1.5MSPS with 3V Supplies
Wide Input Bandwidth:
70dB SNR at 1MHz Input Frequency
Flexible Power/Serial Clock Speed Management
No Pipeline Delays
High Speed Serial Interface
SPITM QSPITM MICROWIRETM DSP Compatible
Power Down Mode: 1µA max
6-Lead TSOT Package
8-lead MSOP Package
AD7476 and AD7476A pin compatible
Specified for VDD of 2.35V to 3.6V
Low Power:
13.5 mW max at 3MSPS with 3V Supplies
TBD mW typ at 1.5MSPS with 3V Supplies
Wide Input Bandwidth:
70dB SNR at 1MHz Input Frequency
Flexible Power/Serial Clock Speed Management
No Pipeline Delays
High Speed Serial Interface
SPITM QSPITM MICROWIRETM DSP Compatible
Power Down Mode: 1µA max
6-Lead TSOT Package
8-lead MSOP Package
AD7476 and AD7476A pin compatible
AD7278 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
AD7278 Connection Diagram
AD7278
PDF/DataSheet Download
- Datasheet: AD7278
- File Size: 261898 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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The AD7276/AD7277/AD7278 are 12-bit, 10-bit and 8bit, high speed, low power, successive-approximation ADCs respectively. The parts operate from a single 2.35V to 3.6 V power supply and feature throughput rates up to 3 MSPS. The parts contain a low-noise, wid...
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