AD7891YSZ-1REEL
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Analog Devices Inc. AD7891YSZ-1REEL

Manufacturer No:
AD7891YSZ-1REEL
Manufacturer:
Analog Devices Inc.
Package:
Tape & Reel (TR)
Description:
IC DAS 12BIT 500K 44MQFP
Delivery:
Payment:
iso14001
iso45001
iso9001
iso13485

Product Introduction

Overview

The AD7891YSZ-1REEL is an 8-channel, 12-bit high-speed data acquisition system produced by Analog Devices Inc. This component integrates an input multiplexer, an on-chip track/hold amplifier, a high-speed 12-bit ADC, a 2.5 V reference, and a high-speed interface on a single chip. It operates from a single 5 V supply and offers a choice of either parallel or serial interface structure, determined by the MODE pin. The AD7891 is designed for high accuracy and reliability, making it suitable for various applications requiring precise data acquisition.

Key Specifications

ParameterValueUnitComments
Number of Channels8-Single-ended analog input channels
Resolution12-bit--
Conversion Time1.6 μsμsFor AD7891-2 model
Acquisition Time0.4 ms (hardware), 0.7 ms (software)msFor AD7891-2 model
Sample Rate500 kSPS (single channel), 62.5 kSPS (channel hopping)kSPS-
Input Ranges±5 V, ±10 V (AD7891-1); 0 to +2.5 V, 0 to +5 V, ±2.5 V (AD7891-2)V-
Supply Voltage5 V ± 5%V-
Power Dissipation82 mW (normal mode), 75 mW (standby mode)mW-
Package Type44-terminal MQFP, 44-lead PLCC--
Overvoltage Protection±17 V for AD7891-1VOn each channel

Key Features

  • High-speed 12-bit ADC with fast conversion times (1.6 μs for AD7891-2)
  • On-chip track/hold amplifier and 2.5 V reference
  • Parallel and serial interface options
  • Single-supply operation (5 V) with low power consumption
  • Overvoltage protection on each channel
  • High dynamic performance parameters including harmonic distortion and signal-to-noise ratio
  • Easy interfacing to microprocessors, microcontrollers, and digital signal processors

Applications

  • Data acquisition systems
  • Motor control systems
  • Mobile communication base stations
  • Instrumentation and measurement systems

Q & A

  1. What is the resolution of the AD7891? The AD7891 has a 12-bit resolution.
  2. How many analog input channels does the AD7891 have? The AD7891 has 8 single-ended analog input channels.
  3. What are the input range options for the AD7891? The AD7891-1 offers ±5 V and ±10 V, while the AD7891-2 offers 0 to +2.5 V, 0 to +5 V, and ±2.5 V.
  4. What is the conversion time of the AD7891-2? The conversion time for the AD7891-2 is 1.6 μs.
  5. Does the AD7891 have overvoltage protection? Yes, each channel on the AD7891 has overvoltage protection, with the AD7891-1 capable of withstanding overvoltages of ±17 V.
  6. What are the power consumption modes of the AD7891? The AD7891 operates in normal mode with 82 mW typical power dissipation and in standby mode with 75 mW typical power dissipation.
  7. What package types are available for the AD7891? The AD7891 is available in 44-terminal MQFP and 44-lead PLCC packages.
  8. Can the AD7891 be used with both parallel and serial interfaces? Yes, the AD7891 provides options for both parallel and serial interface structures, determined by the MODE pin.
  9. What are some typical applications of the AD7891? Typical applications include data acquisition systems, motor control systems, mobile communication base stations, and instrumentation.
  10. How does the AD7891 ensure easy interfacing with other components? The AD7891 has standard control inputs and fast data access times, making it easy to interface with modern microprocessors, microcontrollers, and digital signal processors.

Product Attributes

Type:Data Acquisition System (DAS)
Number of Channels:8
Resolution (Bits):12 b
Sampling Rate (Per Second):500k
Data Interface:Serial, Parallel
Voltage Supply Source:Single Supply
Voltage - Supply:5V
Operating Temperature:-55°C ~ 105°C
Mounting Type:Surface Mount
Package / Case:44-QFP
Supplier Device Package:44-MQFP (10x10)
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Similar Products

Part Number AD7891YSZ-1REEL AD7891ASZ-1REEL AD7891YPZ-1REEL
Manufacturer Analog Devices Inc. Analog Devices Inc. Analog Devices Inc.
Product Status Obsolete Active Obsolete
Type Data Acquisition System (DAS) Data Acquisition System (DAS) Data Acquisition System (DAS)
Number of Channels 8 8 8
Resolution (Bits) 12 b 12 b 12 b
Sampling Rate (Per Second) 500k 500k 500k
Data Interface Serial, Parallel Serial, Parallel Serial, Parallel
Voltage Supply Source Single Supply Single Supply Single Supply
Voltage - Supply 5V 5V 5V
Operating Temperature -55°C ~ 105°C -40°C ~ 85°C -55°C ~ 105°C
Mounting Type Surface Mount Surface Mount Surface Mount
Package / Case 44-QFP 44-QFP 44-LCC (J-Lead)
Supplier Device Package 44-MQFP (10x10) 44-MQFP (10x10) 44-PLCC (16.59x16.59)

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