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AD7724

Features: 13 MHz Master Clock Frequency0 V to +2.5 V or 61.25 V Input RangeSingle Bit Output Stream90 dB Dynamic RangePower SuppliesAVDD, DVDD: 5 V ±5%DVDD1: 3 V 5%Logic Outputs 3 V/5 V CompatibleOn-Chip 2.5 V Voltage Reference48-Lead LQFPPinoutSpecificationsDVDD to DGND . . . . . . . . . . . . . ...

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SeekIC No. : 004270755 Detail

AD7724: Features: 13 MHz Master Clock Frequency0 V to +2.5 V or 61.25 V Input RangeSingle Bit Output Stream90 dB Dynamic RangePower SuppliesAVDD, DVDD: 5 V ±5%DVDD1: 3 V 5%Logic Outputs 3 V/5 V CompatibleOn...

AD7724 Data Sheet

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Part Number:
AD7724
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:

13 MHz Master Clock Frequency
0 V to +2.5 V or 61.25 V Input Range
Single Bit Output Stream
90 dB Dynamic Range
Power Supplies
AVDD, DVDD: 5 V ±5%
DVDD1: 3 V 5%
Logic Outputs 3 V/5 V Compatible
On-Chip 2.5 V Voltage Reference
48-Lead LQFP




Pinout

Connection Diagram




Specifications

DVDD to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0.3 V to +7 V
AVDD to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to +7 V
AVDD to DVDD . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . . . . 1 V to +1 V
AGND to DGND . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . .. . . 0.3 V to +0.3 V
Digital Inputs to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 0.3 V to DVDD + 0.3 V
Digital Outputs to DGND . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to DVDD + 0.3 V
VIN(+), VIN() to AGND . . . . . . . . . . . . . . . . . . . . .. . . . . . . 0.3 V to AVDD + 0.3 V
REF1 to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . . . . . 0.3 V to AVDD + 0.3 V
REF2 to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.3 V to AVDD + 0.3 V
REFIN to AGND . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.3 V to AVDD + 0.3 V
Operating Temperature Range . . . . . . . . . . . . . .. . . . . . . . . . . . 40 °C to +85 °C
Storage Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . .. . 65 °C to +150° C
Junction Temperature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. . . . .. +150° C
q JA Thermal Impedance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. . . . . . 75 °C/W
Lead Temperature, Soldering
Vapor Phase (60 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . .. . . . . . 215°C
Infrared (15 sec) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. . . . .. . 220 °C

Resolution (Bits) 15bit
T-Put Rate 250kSPS
# Chan 2
Supply V Single(+5)
Pwr Diss 300mW
Interface Ser
Ain Range 2.5V p-p,Uni 2.5V
SNR (dB) n/a
Pkg Type QFP





Description

This device AD7724 consists of two seventh order sigma-delta modula-tors. Each modulator converts its analog input signal into a high speed 1-bit data stream. The part operates from a 5 V power supply and accepts a differential input range of 0 V to +2.5 V or 1.25 V centered about a common-mode bias. The analog inputs are continuously sampled by the analog modulators, eliminating the need for external sample-and-hold circuitry. The input infor-mation is contained in the output stream as a density of ones.The original information can be digitally reconstructed with an appropriate digital filter.

The part AD7724 provides an accurate on-chip 2.5 V reference for each modulator. A reference input/output function is provided to allow either the internal reference or an external system refer-ence to be used as the reference source for the modulator.

The device AD7724 is offered in a 48-lead LQFP package and designed to operate from 40 C to +85 C.






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