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AD7858L

Features: Specified for VDD of 3 V to 5.5 VAD7858-200 kSPS; AD7858L-100 kSPSSystem and Self-Calibration with Autocalibration on Power-UpEight Single-Ended or Four Pseudo-Differential Inputs Low PowerAD7858: 12 mW (VDD = 3 V)AD7858L: 4.5 mW (VDD = 3 V)Automatic Power-Down After Conversion (25 W)Fle...

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SeekIC No. : 004271071 Detail

AD7858L: Features: Specified for VDD of 3 V to 5.5 VAD7858-200 kSPS; AD7858L-100 kSPSSystem and Self-Calibration with Autocalibration on Power-UpEight Single-Ended or Four Pseudo-Differential Inputs Low Powe...

AD7858L Data Sheet

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Part Number:
AD7858L
Supply Ability:
5000

Price Break

  • Qty
  • 1~5000
  • Unit Price
  • Negotiable
  • Processing time
  • 15 Days
Total Cost: $ 0.00

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Product Details

Description



Features:

Specified for VDD of 3 V to 5.5 V
AD7858-200 kSPS; AD7858L-100 kSPS
System and Self-Calibration with Autocalibration on Power-Up
Eight Single-Ended or Four Pseudo-Differential Inputs Low Power
AD7858: 12 mW (VDD = 3 V)
AD7858L: 4.5 mW (VDD = 3 V)
Automatic Power-Down After Conversion (25 W)
Flexible Serial Interface:
8051/SPI™/QSPI™/P Compatible
24-Lead DIP, SOIC, and SSOP Packages



Application

Battery-Powered Systems (Personal Digital Assistants, Medical Instruments, Mobile Communications)
Pen Computers
Instrumentation and Control Systems
High-Speed Modems


Pinout

Connection Diagram


Specifications

(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
Plastic DIP Package, Power Dissipation . . . . . .. . . . 450 mW
JA Thermal Impedance . . . . . . . . . . . . . . . . . . .. . . 105/W
JC Thermal Impedance . . . . . . . . . . . . . . . . . . . . . 34.7/W
Lead Temperature, (Soldering, 10 sec) . . . . . .. . . . . +260
SOIC, SSOP Package, Power Dissipation . . . .  . . . . 450 mW
JA Thermal Impedance . . . 75/W (SOIC) 115/W (SSOP)
JC Thermal Impedance . . . . 25/W (SOIC) 35/W (SSOP)
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . .  . . . . . +215
Infrared (15 sec) . . . . . . . . . . . . . . . . .. . . . . . . .  . . . +220


Description

The AD7858/AD7858L are high-speed, low-power, 12-bit ADCs that operate from a single 3 V or 5 V power supply, the AD7858 being optimized for speed and the AD7858L for low power. The ADC powers up with a set of default conditions at which time it can be operated as a read-only ADC. 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 part powers up with a set of default conditions and can operate as a read-only ADC.

The AD7858 is capable of 200 kHz throughput rate while the AD7858L is capable of 100 kHz throughput rate. The input track-and-hold acquires a signal in 500 ns and features a pseudo-differential sampling scheme. The AD7858/AD7858L voltage range is 0 to VREF with straight binary output coding. Input signal range is to the supply and the part is capable of converting full power signals to 100 kHz.

CMOS construction of AD7858/AD7858L ensures low power dissipation of typically 4.5 mW for normal operation and 1.15 mW in power-down mode with a throughput rate of 10 kSPS (VDD = 3 V). The part is available in 24-lead, 0.3 inch-wide dual-in-line package (DIP), 24-lead small outline (SOIC), and 24-lead small shrink outline (SSOP) packages.




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