Manufacturer Part Number
DAC1221E
Manufacturer
Texas Instruments
Introduction
The DAC1221E is a precision digital-to-analog converter (DAC) from Texas Instruments, designed for data acquisition systems.
Product Features and Performance
16-bit resolution
Single DAC channel
2ms settling time
Unbuffered voltage output
SPI data interface
External voltage reference
Supports 2.7V to 3.3V analog supply voltage
Supports 2.7V to 3.3V digital supply voltage
Sigma-Delta architecture
Operational temperature range from -40°C to 85°C
Product Advantages
High-precision with 16-bit resolution
Fast response with 2ms settling time
Flexible interfacing via SPI
Robust performance in extended temperatures
Key Technical Parameters
Number of Bits: 16
Number of D/A Converters: 1
Settling Time: 2ms
Output Type: Voltage - Unbuffered
Reference Type: External
Voltage - Supply, Analog: 2.7V ~ 3.3V
Voltage - Supply, Digital: 2.7V ~ 3.3V
Operating Temperature: -40°C ~ 85°C
Architecture: Sigma-Delta
Quality and Safety Features
Guaranteed 16-bit monotonicity
Built-in error detection
Thermal shutdown protection
Compatibility
SPI interface compatible with various microcontrollers
External reference for easy integration with multiple systems
Application Areas
Precision instrumentation
Process control
Data acquisition systems
Automated test equipment
Product Lifecycle
Active product status
Not indicated as nearing discontinuation
Availability of replacements or upgrades not specified
Several Key Reasons to Choose This Product
High-resolution output for accurate data conversion
Fast digital-to-analog conversion for responsive systems
Compatible with low voltage supply for energy-efficient designs
Durable for industrial temperature ranges
Easy integration with standardized SPI communication
Surface mount form factor for modern PCB designs