Overview
The DAC902E/2K5G4 is a high-speed, 12-bit digital-to-analog converter (DAC) from Texas Instruments, part of the SpeedPlus Family of high-performance converters. This device is known for its high resolution, low power consumption, and excellent dynamic performance. It is particularly suited for applications requiring fast and accurate analog signal generation, such as data acquisition systems, industrial control systems, and medical devices. Although the product has been discontinued and is not recommended for new designs, it remains a robust solution for existing implementations.
Key Specifications
| Specification | Value |
|---|---|
| Number of Bits | 12 |
| Converter Type | D/A CONVERTER |
| Package/Case | 28-TSSOP |
| Supply Voltage (Nominal) | 5V (range: 2.7V to 5.5V) |
| Supply Current (Max) | 30mA |
| Operating Temperature | -40°C to 85°C |
| Sampling Rate | 200 MSPS |
| Settling Time (Typical) | 30ns |
| Integral Nonlinearity (INL) | ±1 LSB |
| Differential Nonlinearity (DNL) | ±0.5 LSB |
| Spurious-Free Dynamic Range (SFDR) | 75 dB |
| Output Type | Current - Unbuffered |
| Differential Output | Yes |
| Reference Type | Internal, External |
| Data Interface | Parallel |
Key Features
- High-resolution 12-bit digital-to-analog conversion with an INL/DNL of ±1/10.5 LSB.
- Fast settling time of 30ns (typical), ensuring rapid conversion and high accuracy.
- Low power consumption, with a nominal supply current of 24mA and a standby power of 45mW in power-down mode.
- Wide operating temperature range of -40°C to 85°C, making it suitable for various environmental conditions.
- Available in a compact 28-TSSOP package with surface mount capability.
- High impedance current output with a nominal range of 20mA and an output compliance of up to 1.25V.
- Integrated 1.24V bandgap reference and edge-triggered input latches for a complete converter solution.
- Flexible reference structure allowing the use of either the on-chip reference or an external reference.
Applications
- Data acquisition systems: The DAC902E/2K5G4 is ideal for high-speed data conversion in data acquisition systems.
- Industrial control systems: Its high accuracy and fast settling time make it suitable for industrial control applications.
- Medical devices: The device is used in medical equipment due to its high resolution and reliability.
- Display electronics: It can be used in display systems requiring precise analog signal generation.
- Motor control: The DAC902E/2K5G4 can be applied in motor control systems for accurate signal conversion.
Q & A
- What is the resolution of the DAC902E/2K5G4? The DAC902E/2K5G4 has a 12-bit resolution.
- What is the sampling rate of the DAC902E/2K5G4? The sampling rate is up to 200 MSPS.
- What is the typical settling time of the DAC902E/2K5G4? The typical settling time is 30ns.
- What is the operating temperature range of the DAC902E/2K5G4? The operating temperature range is -40°C to 85°C.
- Is the DAC902E/2K5G4 RoHS compliant? Yes, the DAC902E/2K5G4 is RoHS compliant.
- What type of package is the DAC902E/2K5G4 available in? The DAC902E/2K5G4 is available in a 28-TSSOP package.
- Can the DAC902E/2K5G4 be powered down to reduce power consumption? Yes, the DAC902E/2K5G4 has a power-down mode that reduces standby power to 45mW.
- What is the maximum supply voltage for the DAC902E/2K5G4? The maximum supply voltage is 5.5V.
- Does the DAC902E/2K5G4 support differential output? Yes, the DAC902E/2K5G4 supports differential output.
- Is the DAC902E/2K5G4 suitable for new designs? No, the DAC902E/2K5G4 has been discontinued and is not recommended for new designs.
