AD7305BRUZ
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Analog Devices Inc. AD7305BRUZ

Manufacturer No:
AD7305BRUZ
Manufacturer:
Analog Devices Inc.
Package:
Tube
Description:
IC DAC 8BIT V-OUT 20TSSOP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The AD7305BRUZ is a quad, 8-bit digital-to-analog converter (DAC) produced by Analog Devices Inc. This component operates from a single +3 V to +5 V supply or ±5 V supplies, making it versatile for various applications. The AD7305 features a parallel interface, which distinguishes it from its serial interface counterpart, the AD7304. It is housed in a 20-lead TSSOP package, ensuring compact integration into diverse systems.

The device includes internal precision buffers that allow rail-to-rail output voltage swing, and its reference input range spans from the negative to the positive supply rails. This flexibility enables the full-scale voltage output to be set to any value within the supply range. An internal power-on reset sets the output to zero scale at turn-on, and a 40 µA power shutdown feature is available for power management.

Key Specifications

Parameter Symbol Condition 3 V ± 10% 5 V ± 10% ±5 V ± 10% Unit
Resolution N 8 8 8 Bits
Integral Nonlinearity INL ±1 ±1 ±1 LSB max
Differential Nonlinearity DNL Monotonic, all codes 0 to 0xFF ±1 Monotonic, all codes 0 to 0xFF ±1 Monotonic, all codes 0 to 0xFF ±1 LSB max
Zero-Scale Error VZSE Data = 0x00 ±15 mV ±15 mV ±15 mV mV max
Full-Scale Voltage Error VFSE Data = 0xFF ±4 LSB ±4 LSB ±4 LSB LSB max
Full-Scale Temperature Coefficient TCVFS 5 ppm/°C typ 5 ppm/°C typ 5 ppm/°C typ ppm/°C typ
Reference Input Range VREFIN VSS/VDD VSS/VDD VSS/VDD V min/max
Input Resistance (AD7305) RREFIN All DACs at code = 0x55 7.5 kΩ typ 7.5 kΩ typ 7.5 kΩ typ kΩ typ
Output Voltage Range VOUT VSS/VDD VSS/VDD VSS/VDD V min/max
Output Current Drive IOUT Code = 0x80, ∆VOUT < 1 LSB ±3 mA typ ±3 mA typ ±3 mA typ mA typ
Shutdown Resistance ROUT DAC outputs placed in shutdown state 120 kΩ typ 120 kΩ typ 120 kΩ typ kΩ typ
Capacitive Load CL No oscillation 200 pF 200 pF 200 pF pF
Logic Input Low Voltage VIL 0.6 V min 0.8 V min 0.8 V min V min

Key Features

  • Quad 8-Bit DACs: Four independent DACs in a single package, each with 8-bit resolution.
  • Flexible Supply Operation: Operates from a single +3 V to +5 V supply or ±5 V supplies.
  • Parallel Interface: The AD7305 uses a parallel interface with standard address decode and WR control line for loading data into input registers.
  • Rail-to-Rail Output: Internal precision buffers allow rail-to-rail output voltage swing.
  • Double-Buffered Architecture: Allows preloading of new values into input registers before updating the DAC registers with an LDAC control strobe.
  • Internal Power-On Reset: Sets the output to zero scale at turn-on.
  • Power Shutdown Feature: A 40 µA power shutdown feature activated by tri-stating the A0/SHDN address pin.
  • Temperature Range: Specified over the extended industrial (−40°C to +85°C) and automotive (−40°C to +125°C) temperature ranges.

Applications

  • Industrial Control Systems: Suitable for applications requiring multiple analog outputs, such as process control and automation.
  • Automotive Systems: Meets the automotive temperature range, making it suitable for automotive control systems and instrumentation.
  • Medical Devices: Can be used in medical devices that require precise analog output control, such as patient monitoring systems.
  • Consumer Electronics: Applicable in consumer electronics that need multiple DAC channels, such as audio equipment and display systems.
  • Test and Measurement Equipment: Useful in test and measurement instruments that require multiple analog output channels.

Q & A

  1. What is the resolution of the AD7305 DAC?

    The AD7305 has a resolution of 8 bits.

  2. What are the supply voltage options for the AD7305?

    The AD7305 can operate from a single +3 V to +5 V supply or ±5 V supplies.

  3. What type of interface does the AD7305 use?

    The AD7305 uses a parallel interface.

  4. What is the purpose of the double-buffered architecture in the AD7305?

    The double-buffered architecture allows preloading of new values into the input registers before updating the DAC registers with an LDAC control strobe.

  5. How is the power shutdown feature activated on the AD7305?

    The power shutdown feature is activated by tri-stating the A0/SHDN address pin.

  6. What is the temperature range for the AD7305?

    The AD7305 is specified over the extended industrial (−40°C to +85°C) and automotive (−40°C to +125°C) temperature ranges.

  7. What is the output voltage range of the AD7305?

    The output voltage range of the AD7305 is from VSS to VDD.

  8. Does the AD7305 have an internal power-on reset feature?

    Yes, the AD7305 has an internal power-on reset feature that sets the output to zero scale at turn-on.

  9. What is the typical output current drive of the AD7305?

    The typical output current drive of the AD7305 is ±3 mA.

  10. Is the AD7305 pin-compatible with any other industry-standard DACs?

    Yes, the AD7305 is pin-compatible with the AD7226 when operating from less than +5.5 V.

Product Attributes

Number of Bits:8
Number of D/A Converters:4
Settling Time:2µs
Output Type:Voltage - Buffered
Differential Output:No
Data Interface:Parallel
Reference Type:External
Voltage - Supply, Analog:2.7V ~ 5.5V, ±5V
Voltage - Supply, Digital:2.7V ~ 5.5V
INL/DNL (LSB):±1 (Max), ±1 (Max)
Architecture:R-2R
Operating Temperature:-40°C ~ 85°C
Package / Case:20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package:20-TSSOP
Mounting Type:Surface Mount
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Similar Products

Part Number AD7305BRUZ AD7305BRZ AD7302BRUZ AD7304BRUZ AD7305BRU
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Active Active Active Active Obsolete
Number of Bits 8 8 8 8 8
Number of D/A Converters 4 4 2 4 4
Settling Time 2µs 2µs 2µs 2µs 2µs
Output Type Voltage - Buffered Voltage - Buffered Voltage - Buffered Voltage - Buffered Voltage - Buffered
Differential Output No No No No No
Data Interface Parallel Parallel Parallel SPI Parallel
Reference Type External External External External External
Voltage - Supply, Analog 2.7V ~ 5.5V, ±5V 2.7V ~ 5.5V, ±5V 2.7V ~ 5.5V 2.7V ~ 5.5V, ±5V 2.7V ~ 5.5V, ±5V
Voltage - Supply, Digital 2.7V ~ 5.5V 2.7V ~ 5.5V 2.7V ~ 5.5V 2.7V ~ 5.5V 2.7V ~ 5.5V
INL/DNL (LSB) ±1 (Max), ±1 (Max) ±1 (Max), ±1 (Max) ±1 (Max), ±1 (Max) ±1 (Max), ±1 (Max) ±1 (Max), ±1 (Max)
Architecture R-2R R-2R Current Source R-2R R-2R
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C -40°C ~ 105°C -40°C ~ 85°C -40°C ~ 85°C
Package / Case 20-TSSOP (0.173", 4.40mm Width) 20-SOIC (0.295", 7.50mm Width) 20-TSSOP (0.173", 4.40mm Width) 16-TSSOP (0.173", 4.40mm Width) 20-TSSOP (0.173", 4.40mm Width)
Supplier Device Package 20-TSSOP 20-SOIC 20-TSSOP 16-TSSOP 20-TSSOP
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount Surface Mount

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