AD1674BRZ

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AD1674BRZ

+BOM

IC ADC 12BIT SAR 28SOIC

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Specifications

Attribute Value
Package / Case Tube
Part Status Active
Number of Bits 12
Sampling Rate(Per Second) 100k
Number of Inputs 1
Input Type Single Ended
Data Interface Parallel
Configuration S/H-ADC
Ratio - S / H: ADC 1:1
Number of A/D Converters 1
Architecture SAR
Reference Type External, Internal
Voltage - Supply, Analog ±11.4V ~ 16.5V
Voltage - Supply, Digital 5V
Operating Temperature -40°C ~ 85°C
Supplier Device Package 28-SOIC

Overview

Description

The AD1674BRZ is a 12-bit, 100 kSPS (kilo-samples per second) successive approximation analog-to-digital converter (ADC) from Analog Devices. It integrates a sample-and-hold amplifier (SHA), a voltage reference, and a high-speed parallel interface, making it suitable for precision data acquisition.
Key features:
- Resolution: 12 bits
- Throughput: 100 kSPS
- Input Range: ±5V, ±10V, or 0–10V (software-selectable)
- On-Chip SHA & Reference: Simplifies design
- Parallel Interface: Easy µP/microcontroller interfacing
- Power Supply: ±12V and +5V
Applications include industrial control, instrumentation, and high-speed data logging. The BRZ suffix denotes a commercial temperature range (0°C to +70°C) and a 28-pin SOIC package.
Its low power consumption (175 mW typical) and high accuracy make it a reliable choice for embedded systems requiring fast, precise analog-to-digital conversion.

Equivalent

The AD1674BRZ is a 12-bit, 100 kSPS ADC. Equivalent alternatives include:
- AD1674JNZ (lower grade)
- AD574A (similar but older)
- MAX195 (from Maxim Integrated)
- LTC1298 (from Linear Tech, lower speed)
Check datasheets for exact compatibility in pinout, speed, and voltage ranges.

Features

The AD1674BRZ is a 12-bit, 100 kSPS successive-approximation ADC with integrated sample-and-hold (SHA) and reference. Key features:
- Resolution: 12 bits
- Sampling Rate: 100 kSPS
- Input Range: ±5V, ±10V, 0–10V, 0–20V (software-selectable)
- On-Chip Features: SHA, 2.5V reference, clock, and interface logic
- Interface: Parallel (12-bit) with byte-select option
- Power Supply: ±12V or ±15V (analog), +5V (digital)
- Package: 28-lead SOIC (BRZ)
- Low Power: 385 mW (typical)
- DNL: ±0.5 LSB (max)
- Operating Temp: -40°C to +85°C
Ideal for industrial control, data acquisition, and instrumentation.

Pinout

The AD1674BRZ is a 12-bit analog-to-digital converter (ADC) with 28 pins in a PLCC package. Key functions include:
- Analog Input: Accepts ±5V or ±10V ranges (pin 2, VIN).
- Reference I/O: Internal/external reference support (pins 5, 6, REF OUT/IN).
- Digital Outputs: 12-bit parallel data (pins 16–27, DB0–DB11).
- Control Signals:
- CS (Chip Select, pin 1)
- R/C (Read/Convert, pin 3)
- CE (Chip Enable, pin 4)
- STS (Status, pin 28) indicates conversion completion.
- Power Supply: ±12V or ±15V (pins 7, 14, V+/V−) and +5V logic (pin 13).
It operates at 100 kSPS and includes an internal sample-and-hold.

Manufacturer

The AD1674BRZ is manufactured by Analog Devices, Inc. (ADI), a leading global semiconductor company specializing in high-performance analog, mixed-signal, and digital signal processing (DSP) integrated circuits. Founded in 1965 and headquartered in Wilmington, Massachusetts, ADI serves industries like automotive, healthcare, industrial automation, and communications with precision data conversion, signal conditioning, and power management solutions. The company is renowned for its innovation in analog technology and holds a strong reputation for reliability and technical expertise.
The AD1674BRZ itself is a 12-bit analog-to-digital converter (ADC) designed for high-speed, high-accuracy applications.

Application

The AD1674BRZ is a 12-bit analog-to-digital converter (ADC) with a built-in sample-and-hold circuit. Key application areas include:
- Data Acquisition Systems – High-speed, precision signal conversion.
- Industrial Automation – Process control and monitoring.
- Medical Instrumentation – Accurate biomedical signal processing.
- Test & Measurement Equipment – Reliable signal digitization.
- Communications – Baseband signal processing.
- Military/Aerospace – Rugged, high-performance systems.
Its 10µs conversion time and ±1/2 LSB accuracy make it suitable for demanding real-time applications.

Package

The AD1674BRZ comes in a 28-lead SOIC (Small Outline Integrated Circuit) package. This surface-mount package is compact and widely used for analog and mixed-signal ICs, offering good thermal and electrical performance. The "BRZ" suffix indicates the specific package type and temperature range (commercial, 0°C to +70°C).

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