AD679*

Features: AC and DC Characterized and Specified (K, B, T Grades)128k Conversions per Second1 MHz Full Power Bandwidth500 kHz Full Linear Bandwidth80 dB S/N+D (K, B, T Grades)Twos Complement Data Format (Bipolar Mode)Straight Binary Data Format (Unipolar Mode)10 MV Input Impedance8-Bit Bus Interfac...

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AD679* Picture
SeekIC No. : 004269796 Detail

AD679*: Features: AC and DC Characterized and Specified (K, B, T Grades)128k Conversions per Second1 MHz Full Power Bandwidth500 kHz Full Linear Bandwidth80 dB S/N+D (K, B, T Grades)Twos Complement Data For...

floor Price/Ceiling Price

Part Number:
AD679*
Supply Ability:
5000

Price Break

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

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Upload time: 2025/3/10

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Product Details

Description



Features:

AC and DC Characterized and Specified (K, B, T Grades)
128k Conversions per Second
1 MHz Full Power Bandwidth
500 kHz Full Linear Bandwidth
80 dB S/N+D (K, B, T Grades)
Twos Complement Data Format (Bipolar Mode)
Straight Binary Data Format (Unipolar Mode)
10 MV Input Impedance
8-Bit Bus Interface (See AD779 for 16-Bit Interface)
On-Board Reference and Clock
10 V Unipolar or Bipolar Input Range
Pin Compatible with AD678 12-Bit, 200 kSPS ADC
MIL-STD-883 Compliant Versions Available



Pinout

  Connection Diagram


Specifications


Specification
With
Respect
To
Min Max Units Max Units
VCC
VEE
VCC(Note 1)
VDD
AGND
AIN, REFIN
Digital Inputs
Digital Outputs
Max Junction
Temperature
AGND
AGND
VEE
DGND
DGND
AGND
DGND
DGND
-0.3
-18
-0.3
0
-1
VEE
-0.5
-0.5
+18
+0.3
+26.4
+7
+1
VCC
VDD+0.3

175

V
V
V
V
V
V
V
V





Description

The AD679 is a complete, multipurpose 14-bit monolithic analog-to-digital converter, consisting of a sample-hold amplifier (SHA), a microprocessor compatible bus interface, a voltage reference and clock generation circuitry.

The AD679 is specified for ac (or "dynamic") parameters such as S/N+D ratio.

THD and IMD which are important in signal processing applications. In addition, the AD679K, B and T grades are fully specified for dc parameters which are important in measurement applications.

The 14 data bits are accessed in two read operations (8+6), with left justification. Data format is straight binary for unipolar mode and twos complement binary for bipolar mode. The input has a full-scale range of 10 V with a full power bandwidth of 1 MHz and a full linear bandwidth of 500 kHz. High input impedance (10 MW) allows direct connection to unbuffered sources without signal degradation. Conversions can be initiated either under microprocessor control or by an external clock asynchronous to the system clock.

This product AD679 is fabricated on Analog Devices' BiMOS process, combining low power CMOS logic with high precision, low noise bipolar circuits; laser-trimmed thin-film resistors provide high accuracy. The converter utilizes a recursive subranging algorithm which includes error correction and flash converter circuitry to achieve high speed and resolution.

The AD679 operates from +5 V and ±12 V supplies and dissipates 560 mW (typ). 28-pin plastic DIP, ceramic DIP and 44 J-leaded ceramic surface mount packages are available.




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