AD632SH/883B

Product Overview

• Category: Integrated Circuit (IC)
• Use: Analog Devices' AD632SH/883B is a high-performance, precision monolithic dual-channel voltage-to-frequency converter.
• Characteristics:
  • High accuracy and linearity
  • Wide operating temperature range (-55°C to +125°C)
  • Low power consumption
  • Small package size
• Package: Ceramic DIP (Dual In-line Package)
• Essence: The AD632SH/883B is designed to convert an analog input voltage into a corresponding frequency output signal with high precision and linearity.
• Packaging/Quantity: The AD632SH/883B is typically sold in trays or tubes, with quantities varying based on customer requirements.

Specifications

• Supply Voltage Range: ±5V to ±18V
• Input Voltage Range: ±10V
• Frequency Output Range: 0Hz to 10MHz
• Linearity Error: ±0.01% max
• Temperature Coefficient: ±50ppm/°C max
• Power Consumption: 1.2mW typical

Detailed Pin Configuration

The AD632SH/883B has a total of 20 pins, which are assigned as follows:

1. VREF1: Reference Voltage Input 1
2. IN1: Analog Input 1
3. GND: Ground
4. VPOS: Positive Supply Voltage
5. VNEG: Negative Supply Voltage
6. OUT1: Frequency Output 1
7. NC: No Connection
8. NC: No Connection
9. NC: No Connection
10. NC: No Connection
11. NC: No Connection
12. NC: No Connection
13. NC: No Connection
14. NC: No Connection
15. NC: No Connection
16. OUT2: Frequency Output 2
17. IN2: Analog Input 2
18. VREF2: Reference Voltage Input 2
19. NC: No Connection
20. NC: No Connection

Functional Features

• Dual-Channel Operation: The AD632SH/883B provides two independent voltage-to-frequency conversion channels, allowing simultaneous processing of two analog input signals.
• High Accuracy and Linearity: With a linearity error of ±0.01% max, the AD632SH/883B ensures precise and reliable frequency output proportional to the input voltage.
• Wide Operating Temperature Range: The IC is designed to operate reliably in extreme temperature conditions, ranging from -55°C to +125°C.
• Low Power Consumption: The AD632SH/883B consumes only 1.2mW of power, making it suitable for low-power applications.
• Small Package Size: The ceramic DIP package offers compactness and ease of integration into various electronic systems.

Advantages and Disadvantages

Advantages: - High accuracy and linearity ensure reliable voltage-to-frequency conversion. - Wide operating temperature range allows usage in harsh environments. - Low power consumption makes it suitable for battery-powered devices. - Compact package size facilitates easy integration.

Disadvantages: - Limited frequency output range (up to 10MHz). - Requires external reference voltages for accurate operation.

Working Principles

The AD632SH/883B operates based on the principle of integrating an analog input voltage and converting it into a corresponding frequency output signal. It utilizes internal precision voltage references and comparators to achieve accurate voltage-to-frequency conversion. The input voltage is compared with the internal reference voltage, and the resulting frequency output is directly proportional to the input voltage.

Detailed Application Field Plans

The AD632SH/883B finds applications in various fields, including:

1. Industrial Automation: Used for process control, data acquisition, and monitoring systems.
2. Instrumentation: Employed in precision measurement equipment, signal generators, and waveform analyzers.
3. Communication Systems: Utilized for frequency modulation, phase-locked loops, and frequency synthesis.
4. Medical Equipment: Integrated into patient monitoring devices, electrocardiographs, and medical imaging systems.
5. Automotive Electronics: Applied in engine control units, fuel injection systems, and vehicle diagnostics.

Detailed and Complete Alternative Models

1. AD650: Monolithic Voltage-to-Frequency Converter with Improved Linearity.
2. AD537: Precision Monolithic Dual-Channel Voltage-to-Frequency Converter.
3. AD654: CMOS Voltage-to-Frequency Converter with Linearization.
4. AD5370: High-Speed, Low-Power Voltage-to-Frequency Converter.
5. AD6505: Ultra-Low Power, Rail-to-Rail Input/Output Voltage-to-Frequency Converter.

These alternative models offer similar functionality to the AD632SH/883B and can be considered based on specific application requirements.

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