Overview
The AD7845JNZ is a 12-bit multiplying Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. It is the industry’s first 4-quadrant multiplying D/A converter with an on-chip amplifier, fabricated using the LC²MOS process. This allows for the integration of precision linear components and digital circuitry on the same chip. The device features 12 data inputs that drive latches controlled by standard active-low CS and WR signals, facilitating easy microprocessor interfacing. For stand-alone operation, the CS and WR inputs can be tied to ground, making all latches transparent. All digital inputs are TTL and 5V CMOS compatible.
Key Specifications
| Parameter | Value | Parameter | Value |
|---|---|---|---|
| Series | AD7845 | Resolution | 12 bits |
| Sampling Rate | 200 kS/s | Number of Channels | 1 Channel |
| Settling Time | 5 µs | Output Type | Voltage - Buffered |
| Interface Type | Parallel | Analog Supply Voltage | ±14.25 V ~ 15.75 V |
| Digital Supply Voltage | ±14.25 V ~ 15.75 V | Minimum Operating Temperature | -55°C |
| Maximum Operating Temperature | +125°C | Mounting Style | Through Hole |
| Brand | Analog Devices | DNL - Differential Nonlinearity | ±1 LSB |
| INL - Integral Nonlinearity | ±1 LSB | Package / Case | 24-PDIP |
Key Features
- High-speed 12-bit multiplying DAC with on-chip amplifier.
- 4-quadrant multiplying capability, allowing for precise control in various applications.
- Parallel interface for easy microprocessor interfacing.
- TTL and 5V CMOS compatible digital inputs.
- Low power consumption and high accuracy, making it suitable for a range of applications.
- Matched application resistors for gain ranging and voltage offsetting.
- Internally compensated output amplifier with low input offset voltage due to laser trimming at wafer level.
Applications
- Automatic test equipment.
- Digital attenuators.
- Programmable power supplies.
- Programmable gain amplifiers.
- Digital-to-4–20mA converters.
- Industrial automation.
- Audio equipment.
Q & A
- Q: What is the resolution of the AD7845JNZ?
A: The AD7845JNZ has a resolution of 12 bits.
- Q: What is the settling time of the AD7845JNZ?
A: The settling time of the AD7845JNZ is 5 µs.
- Q: What is the supply voltage range for the AD7845JNZ?
A: The AD7845JNZ operates with an analog and digital supply voltage range of ±14.25 V ~ 15.75 V.
- Q: Is the AD7845JNZ RoHS compliant?
A: Yes, the AD7845JNZ is lead-free and RoHS compliant.
- Q: What is the operating temperature range of the AD7845JNZ?
A: The AD7845JNZ operates from 0°C to +70°C.
- Q: What type of interface does the AD7845JNZ use?
A: The AD7845JNZ uses a parallel interface.
- Q: What is the output type of the AD7845JNZ?
A: The AD7845JNZ has a buffered voltage output.
- Q: What is the warranty period for the AD7845JNZ from Ovaga?
A: Ovaga offers a 1-year warranty on the AD7845JNZ.
- Q: How does Ovaga ensure the authenticity of the AD7845JNZ?
A: Ovaga ensures authenticity by rigorously testing and verifying the credentials of original Analog Devices manufacturers and authorized agents.
- Q: What is the package type of the AD7845JNZ?
A: The AD7845JNZ is packaged in a 24-pin PDIP (Plastic DIP) package.
