DAC7728SPAG

Basic Information Overview

• Category: Digital-to-Analog Converter (DAC)
• Use: Converts digital signals into analog voltages
• Characteristics:
  • High resolution and accuracy
  • Low power consumption
  • Wide operating temperature range
• Package: SPAG (Small Plastic Dual-In-Line Package)
• Essence: Provides precise analog voltage outputs based on digital input signals
• Packaging/Quantity: Available in reels, with a quantity of 2500 units per reel

Specifications

• Resolution: 12 bits
• Number of Channels: 8
• Supply Voltage Range: 2.7V to 5.5V
• Operating Temperature Range: -40°C to +105°C
• Output Voltage Range: 0V to Vref
• DNL (Differential Non-Linearity): ±1 LSB (Least Significant Bit)
• INL (Integral Non-Linearity): ±2 LSB
• Power Consumption: 0.6mW at 3.3V supply voltage

Detailed Pin Configuration

The DAC7728SPAG has a total of 20 pins, which are configured as follows:

| Pin No. | Pin Name | Description | |---------|----------|-------------| | 1 | VDD | Positive Supply Voltage | | 2 | VREF | Reference Voltage Input | | 3 | AGND | Analog Ground | | 4 | OUTA | Analog Output Channel A | | 5 | OUTB | Analog Output Channel B | | 6 | OUTC | Analog Output Channel C | | 7 | OUTD | Analog Output Channel D | | 8 | OUTE | Analog Output Channel E | | 9 | OUTF | Analog Output Channel F | | 10 | OUTG | Analog Output Channel G | | 11 | OUTH | Analog Output Channel H | | 12 | DGND | Digital Ground | | 13 | DIN | Serial Data Input | | 14 | SCLK | Serial Clock Input | | 15 | SYNC | Chip Select Input | | 16 | CLR | Clear Input | | 17 | LDAC | Load DAC Input | | 18 | REFOUT | Reference Voltage Output | | 19 | AGND | Analog Ground | | 20 | VSS | Negative Supply Voltage |

Functional Features

• High-resolution digital-to-analog conversion
• Eight independent analog output channels
• Serial interface for easy integration with microcontrollers or other digital systems
• Internal reference voltage generator
• Power-down mode for reduced power consumption

Advantages and Disadvantages

Advantages

• High resolution and accuracy ensure precise analog voltage outputs
• Low power consumption makes it suitable for battery-powered applications
• Wide operating temperature range allows for use in various environments

Disadvantages

• Limited number of channels (8) compared to some other DACs
• Requires an external reference voltage source

Working Principles

The DAC7728SPAG operates by converting digital input signals into corresponding analog voltages. It utilizes a serial interface to receive digital data, which is then processed internally to generate the desired analog output voltages. The internal reference voltage ensures accurate conversion, while the power-down mode helps conserve energy when the device is not in use.

Detailed Application Field Plans

The DAC7728SPAG is commonly used in various applications that require precise analog voltage generation. Some potential application fields include: - Audio equipment: Generating audio signals with high fidelity - Industrial automation: Controlling analog actuators and sensors - Test and measurement instruments: Providing accurate voltage references - Communication systems: Generating analog signals for modulation/demodulation

Detailed and Complete Alternative Models

• DAC7724: 12-bit, 4-channel DAC with similar features
• DAC7741: 14-bit, 8-channel DAC with higher resolution
• DAC7617: 12-bit, 16-channel DAC for applications requiring more channels

(Note: This is not an exhaustive list of alternative models. Please refer to the manufacturer's documentation for a complete list.)

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