AD7628KP-REEL
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Analog Devices Inc. AD7628KP-REEL

Manufacturer No:
AD7628KP-REEL
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC DAC 8BIT A-OUT 20PLCC
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The AD7628KP-REEL, produced by Analog Devices Inc., is a monolithic dual 8-bit digital-to-analog converter (DAC) known for its excellent DAC-to-DAC matching. This device is available in various packages, including 20-pin DIP, 20-terminal surface mount packages, and 20-lead PLCC (Plastic Leaded Chip Carrier).

The AD7628 features two identical 8-bit multiplying DACs, each consisting of a highly stable thin film R-2R ladder and eight N-channel current steering switches. This design ensures fixed currents in each ladder leg, independent of the switch state, and provides four-quadrant multiplication characteristics.

Key Specifications

Specification Value Unit
Resolution 8-bit
Number of DACs 2
Input High Voltage (VIH) 2.4 V
Input Low Voltage (VIL) 0.8 V
Input Current (IIN) ±1 µA
Input Capacitance (DB0–DB7) 10 pF
Input Capacitance (WR, CS, DACA/DACB) 15 pF
Chip Select to Write Set Up Time (tCS) 160 ns
Chip Select to Write Hold Time (tCH) 10 ns
Operating Temperature Range (Commercial) –40°C to +85°C
Operating Temperature Range (Industrial) –40°C to +85°C
Operating Temperature Range (Extended) –55°C to +125°C
Power Supply Voltage +12 V to +15 V
Power Dissipation 20 mW

Key Features

  • Excellent DAC-to-DAC matching
  • Two identical 8-bit multiplying DACs with R-2R ladder structure
  • Four-quadrant multiplication characteristics with separate reference input and feedback resistor for each DAC
  • Separate on-chip latches for each DAC for easy microprocessor interface
  • TTL/CMOS compatible input port
  • Bus compatible with most 8-bit microprocessors (e.g., 6502, 6809, 8085, Z80)
  • Low power dissipation of 20 mW
  • Available in 20-pin DIP, 20-terminal surface mount packages, and 20-lead PLCC

Applications

The AD7628 is suitable for various applications requiring precise digital-to-analog conversion, such as:

  • Industrial control systems
  • Automotive systems
  • Aerospace and defense systems
  • Medical devices
  • Test and measurement equipment

Q & A

  1. What is the resolution of the AD7628 DAC?

    The AD7628 has a resolution of 8 bits.

  2. How many DACs are included in the AD7628?

    The AD7628 includes two identical 8-bit DACs.

  3. What is the operating temperature range for the AD7628?

    The operating temperature range is –40°C to +85°C for commercial and industrial grades, and –55°C to +125°C for extended grades.

  4. What is the power supply voltage for the AD7628?

    The AD7628 operates from a +12 V to +15 V power supply.

  5. Is the AD7628 compatible with microprocessors?

    Yes, it is bus compatible with most 8-bit microprocessors such as 6502, 6809, 8085, and Z80.

  6. What is the power dissipation of the AD7628?

    The power dissipation is 20 mW.

  7. In what packages is the AD7628 available?

    The AD7628 is available in 20-pin DIP, 20-terminal surface mount packages, and 20-lead PLCC.

  8. Does the AD7628 support four-quadrant multiplication?

    Yes, it supports four-quadrant multiplication with separate reference input and feedback resistor for each DAC.

  9. What is the input high voltage (VIH) for the AD7628?

    The input high voltage (VIH) is 2.4 V.

  10. What is the input low voltage (VIL) for the AD7628?

    The input low voltage (VIL) is 0.8 V.

Product Attributes

Number of Bits:8
Number of D/A Converters:2
Settling Time:400ns
Output Type:Current - Unbuffered
Differential Output:No
Data Interface:Parallel
Reference Type:External
Voltage - Supply, Analog:10.8V ~ 15.75V
Voltage - Supply, Digital:10.8V ~ 15.75V
INL/DNL (LSB):±0.5 (Max), ±1 (Max)
Architecture:R-2R
Operating Temperature:-40°C ~ 85°C
Package / Case:20-LCC (J-Lead)
Supplier Device Package:20-PLCC (9x9)
Mounting Type:Surface Mount
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Similar Products

Part Number AD7628KP-REEL AD7628KPZ-REEL
Manufacturer Analog Devices Inc. Analog Devices Inc.
Product Status Obsolete Active
Number of Bits 8 8
Number of D/A Converters 2 2
Settling Time 400ns 400ns
Output Type Current - Unbuffered Current - Unbuffered
Differential Output No No
Data Interface Parallel Parallel
Reference Type External External
Voltage - Supply, Analog 10.8V ~ 15.75V 10.8V ~ 15.75V
Voltage - Supply, Digital 10.8V ~ 15.75V 10.8V ~ 15.75V
INL/DNL (LSB) ±0.5 (Max), ±1 (Max) ±0.5 (Max), ±1 (Max)
Architecture R-2R R-2R
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Package / Case 20-LCC (J-Lead) 20-LCC (J-Lead)
Supplier Device Package 20-PLCC (9x9) 20-PLCC (9x9)
Mounting Type Surface Mount Surface Mount

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