規格
| 屬性 | 價值 |
| Package | Tube |
| ProductStatus | Active |
| NumberofBits | 20 |
| NumberofD/AConverters | 1 |
| SettlingTime | 2ms |
| OutputType | Voltage - Unbuffered |
| DifferentialOutput | No |
| DataInterface | SPI |
| ReferenceType | External |
| Voltage-SupplyAnalog | 5V |
| Voltage-SupplyDigital | 5V |
| Architecture | Sigma-Delta |
| OperatingTemperature | -40°C ~ 85°C |
| Package/Case | 16-SSOP (0.154, 3.90mm Width) |
| SupplierDevicePackage | 16-SSOP |
概述
Description
The DAC1220E is a 20-bit digital-to-analog converter (DAC) from Texas Instruments, designed for high-precision applications. It features low noise, high linearity, and a flexible serial interface (SPI/I²C).
Key specifications:
- Resolution: 20 bits
- Output: Voltage (0V to Vref)
- Interface: SPI/I²C (up to 50 MHz)
- INL/DNL: ±2 LSB (max)
- Power Supply: 2.7V to 5.5V
The DAC1220E includes an on-chip reference buffer, reducing external components. It’s ideal for industrial control, test equipment, and medical devices requiring fine analog signal generation.
Its low power consumption (0.6 mA typical) and small package (TSSOP-16) make it suitable for space-constrained designs. Calibration options ensure long-term accuracy.
For detailed operation, refer to the datasheet.
Key specifications:
- Resolution: 20 bits
- Output: Voltage (0V to Vref)
- Interface: SPI/I²C (up to 50 MHz)
- INL/DNL: ±2 LSB (max)
- Power Supply: 2.7V to 5.5V
The DAC1220E includes an on-chip reference buffer, reducing external components. It’s ideal for industrial control, test equipment, and medical devices requiring fine analog signal generation.
Its low power consumption (0.6 mA typical) and small package (TSSOP-16) make it suitable for space-constrained designs. Calibration options ensure long-term accuracy.
For detailed operation, refer to the datasheet.
Equivalent
The DAC1220E is a 20-bit digital-to-analog converter (DAC). Equivalent or similar products include:
- DAC1220 (same family, different package)
- LTC2636 (12-bit, but high precision)
- AD5791 (20-bit, higher performance)
- MAX5715 (20-bit, low-power alternative)
- MCP4728 (12-bit, I²C interface)
Check datasheets for exact compatibility in voltage range, interface, and resolution.
- DAC1220 (same family, different package)
- LTC2636 (12-bit, but high precision)
- AD5791 (20-bit, higher performance)
- MAX5715 (20-bit, low-power alternative)
- MCP4728 (12-bit, I²C interface)
Check datasheets for exact compatibility in voltage range, interface, and resolution.
Features
The DAC1220E is a 20-bit, low-power, voltage-output digital-to-analog converter (DAC) with the following key features:
- Resolution: 20-bit monotonicity ensures high precision.
- Interface: Serial (SPI-compatible) for easy microcontroller integration.
- Output: Voltage output (0V to Vref) with a built-in output amplifier.
- Reference Input: External reference voltage (up to 5V).
- Low Power: Typically consumes 1.5mW at 5V, suitable for battery-powered devices.
- Settling Time: Fast 10µs settling time for rapid response.
- Packaging: 8-pin SOIC for compact designs.
- Applications: Precision instrumentation, industrial control, and audio systems.
Its high resolution and low power make it ideal for demanding analog output applications.
- Resolution: 20-bit monotonicity ensures high precision.
- Interface: Serial (SPI-compatible) for easy microcontroller integration.
- Output: Voltage output (0V to Vref) with a built-in output amplifier.
- Reference Input: External reference voltage (up to 5V).
- Low Power: Typically consumes 1.5mW at 5V, suitable for battery-powered devices.
- Settling Time: Fast 10µs settling time for rapid response.
- Packaging: 8-pin SOIC for compact designs.
- Applications: Precision instrumentation, industrial control, and audio systems.
Its high resolution and low power make it ideal for demanding analog output applications.
Pinout
The DAC1220E is a 20-bit digital-to-analog converter (DAC) with 16 pins. Key functions include:
- Analog Output (Pin 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16): Provides high-resolution voltage output.
- Digital Interface (SPI/I2C): For communication with microcontrollers (pins vary by mode).
- Reference Input (Pin X): Accepts external voltage reference.
- Power Supply (VDD, GND): Typically +5V or +3.3V.
- Control Pins (LDAC, CLR): For synchronization and reset.
Exact pin functions depend on the configuration (e.g., unipolar/bipolar mode). Check the datasheet for detailed pinout.
- Analog Output (Pin 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16): Provides high-resolution voltage output.
- Digital Interface (SPI/I2C): For communication with microcontrollers (pins vary by mode).
- Reference Input (Pin X): Accepts external voltage reference.
- Power Supply (VDD, GND): Typically +5V or +3.3V.
- Control Pins (LDAC, CLR): For synchronization and reset.
Exact pin functions depend on the configuration (e.g., unipolar/bipolar mode). Check the datasheet for detailed pinout.
Application
The DAC1220E is a precision 20-bit digital-to-analog converter (DAC) used in applications requiring high accuracy and low noise. Key areas include:
- Industrial automation (process control, calibration)
- Test & measurement equipment (signal generators, data acquisition)
- Medical devices (imaging systems, diagnostic tools)
- Audio systems (high-fidelity digital audio processing)
- Automotive electronics (sensor calibration, control systems)
Its high resolution, low drift, and SPI interface make it ideal for precision analog output in demanding environments.
- Industrial automation (process control, calibration)
- Test & measurement equipment (signal generators, data acquisition)
- Medical devices (imaging systems, diagnostic tools)
- Audio systems (high-fidelity digital audio processing)
- Automotive electronics (sensor calibration, control systems)
Its high resolution, low drift, and SPI interface make it ideal for precision analog output in demanding environments.
Package
The DAC1220E is a 20-bit digital-to-analog converter (DAC) from Texas Instruments. It comes in a 28-pin SSOP (Shrink Small Outline Package). This package type is compact, surface-mount, and suitable for precision applications. Key features include low noise, high resolution, and a small footprint, making it ideal for industrial and instrumentation systems.