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MFG:ADI D/C:09
Part Number: AD7859L
MFG: ADI
D/C: 09
Description: The AD7859/AD7859L are high speed, low power, 8-channel, 12-bit ADCs which operate from a single 3 V o...
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AD7859L
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DataSheet
General Description
AD7859L General Description
The AD7859/AD7859L are high speed, low power, 8-channel, 12-bit ADCs which operate from a single 3 V or 5 V power supply, the AD7859 being optimized for speed and the AD7859L for low power. The ADC contains self-calibration and system calibration options to ensure accurate operation over time and temperature and have a number of power-down options for low power applications.
The AD7859 is capable of 200 kHz throughput rate while the AD7859L is capable of 100 kHz throughput rate. The input track-and-hold acquires a signal in 500 ns and features a pseudodifferential sampling scheme. The AD7859 and AD7859L input voltage range is 0 to VREF (unipolar) and VREF/2 to +VREF/2 about VREF/2 (bipolar) with both straight binary and 2s complement output coding respectively. Input signal range is to the supply and the part is capable of converting full-power signals to 100 kHz.
CMOS construction ensures low power dissipation of typically 5.4 mW for normal operation and 3.6 mW in power-down mode. The part is available in 44-pin, plastic quad flatpack package (PQFP) and plastic lead chip carrier (PLCC).
AD7859L Maximum Ratings
(TA = +25 unless otherwise noted)
AVDD to AGND.............. . 0.3 V to +7 V
DVDD to DGND ........... ....0.3 V to +7 V
AVDD to DVDD .......... ....0.3 V to +0.3 V
Analog Input Voltage to AGND . .0.3 V to AVDD + 0.3 V
Digital Input Voltage to DGND ...0.3 V to DVDD + 0.3 V
Digital Output Voltage to DGND ..0.3 V to DVDD + 0.3 V
REFIN/REFOUT to AGND ....... 0.3 V to AVDD + 0.3 V
Input Current to Any Pin Except Supplies2.... ±10 mA
Operating Temperature Range
Commercial (A, B Versions) .........40 to +85
Storage Temperature Range ....... 65 to +150
Junction Temperature ................+150
PQFP Package, Power Dissipation .........450 mW
JA Thermal Impedance ........... ... 95/W
Lead Temperature, Soldering
Vapor Phase (60 sec) ............ .... +215
Infrared (15 sec) .................. +220
PLCC Package, Power Dissipation......... 500 mW
JA Thermal Impedance ............ ..55/W
Lead Temperature, Soldering
Vapor Phase (60 sec) ............. .. +215
Infrared (15 sec) ................. .+220
ESD ....................... >1500 kV
AVDD to AGND.............. . 0.3 V to +7 V
DVDD to DGND ........... ....0.3 V to +7 V
AVDD to DVDD .......... ....0.3 V to +0.3 V
Analog Input Voltage to AGND . .0.3 V to AVDD + 0.3 V
Digital Input Voltage to DGND ...0.3 V to DVDD + 0.3 V
Digital Output Voltage to DGND ..0.3 V to DVDD + 0.3 V
REFIN/REFOUT to AGND ....... 0.3 V to AVDD + 0.3 V
Input Current to Any Pin Except Supplies2.... ±10 mA
Operating Temperature Range
Commercial (A, B Versions) .........40 to +85
Storage Temperature Range ....... 65 to +150
Junction Temperature ................+150
PQFP Package, Power Dissipation .........450 mW
JA Thermal Impedance ........... ... 95/W
Lead Temperature, Soldering
Vapor Phase (60 sec) ............ .... +215
Infrared (15 sec) .................. +220
PLCC Package, Power Dissipation......... 500 mW
JA Thermal Impedance ............ ..55/W
Lead Temperature, Soldering
Vapor Phase (60 sec) ............. .. +215
Infrared (15 sec) ................. .+220
ESD ....................... >1500 kV
AD7859L Features
Specified for VDD of 3 V to 5.5 V
AD7859200 kSPS; AD7859L100 kSPS
System and Self-Calibration
Low Power
Normal Operation
AD7859: 15 mW (VDD = 3 V)
AD7859L: 5.5 mW (VDD = 3 V)
Using Automatic Power-Down After Conversion (25 mW)
AD7859: 1.3 mW (VDD = 3 V 10 kSPS)
AD7859L: 650 mW (VDD = 3 V 10 kSPS)
Flexible Parallel Interface:
16-Bit Parallel/8-Bit Parallel
44-Pin PQFP and PLCC Packages
AD7859200 kSPS; AD7859L100 kSPS
System and Self-Calibration
Low Power
Normal Operation
AD7859: 15 mW (VDD = 3 V)
AD7859L: 5.5 mW (VDD = 3 V)
Using Automatic Power-Down After Conversion (25 mW)
AD7859: 1.3 mW (VDD = 3 V 10 kSPS)
AD7859L: 650 mW (VDD = 3 V 10 kSPS)
Flexible Parallel Interface:
16-Bit Parallel/8-Bit Parallel
44-Pin PQFP and PLCC Packages
AD7859L Typical Application
Battery-Powered Systems (Personal Digital Assistants, Medical Instruments, Mobile Communications)
Pen Computers
Instrumentation and Control Systems
High Speed Modems
Pen Computers
Instrumentation and Control Systems
High Speed Modems
AD7859L
PDF/DataSheet Download
- Datasheet: AD7859L
- File Size: 548604 KB
- Manufacturer: AD [Analog Devices]
- Click here to Download
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AD7859L Relative Products
AD7859BSZ
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