Overview
The AD7846JPZ is a 16-bit voltage output Digital-to-Analog Converter (DAC) manufactured by Analog Devices Inc. It is constructed using the LC2MOS process and features VREF+ and VREF− reference inputs along with an on-chip output amplifier. This DAC can be configured to provide unipolar output ranges (0 V to +5 V, 0 V to +10 V) or bipolar output ranges (±5 V, ±10 V). The device is known for its high accuracy and monotonicity, making it suitable for various precision applications.
Key Specifications
| Parameter | Value | Unit | Comments |
|---|---|---|---|
| Number of Bits | 16 | - | - |
| Architecture | String DAC | - | - |
| INL/DNL (LSB) | ±16 (Max), ±1 (Max) | - | - |
| Settling Time | 9 µs | - | - |
| Data Interface | Parallel | - | - |
| Reference Type | External | - | - |
| Differential Output | No | - | - |
| Operating Temperature | 0°C ~ 70°C | - | - |
| Voltage - Supply, Analog | ±11.4V ~ 15.75V | - | - |
| Voltage - Supply, Digital | 5V | - | - |
| Package / Case | 28-PLCC (J-Lead) | - | - |
Key Features
- 16-Bit Monotonicity: Guaranteed monotonicity over temperature, ideal for closed-loop applications.
- Readback Function: Ability to read back the DAC register contents, useful in Automated Test Equipment (ATE) systems.
- Low Power Dissipation: Power dissipation of 100 mW, making it the lowest power, high accuracy DAC available.
- Comprehensive Microprocessor Interface: Includes 16 data I/O pins and control lines (CS, R/W, LDAC, and CLR) for flexible control.
- Segmented Architecture: Uses a segmented architecture with a 16-resistor string and buffer amplifiers to ensure high resolution and linearity.
- Output Amplifier: On-chip output amplifier configurable for unipolar and bipolar output ranges.
Applications
- Automated Test Equipment (ATE): The readback function and low power consumption make it suitable for ATE applications.
- Closed-Loop Systems: Ideal for applications requiring high accuracy and monotonicity, such as control systems and feedback loops.
- Industrial Control Systems: Used in precision control and measurement systems due to its high accuracy and reliability.
- Medical Devices: Suitable for medical equipment that requires precise voltage output and low power consumption.
Q & A
- What is the resolution of the AD7846JPZ DAC?
The AD7846JPZ is a 16-bit DAC.
- What types of output ranges can the AD7846JPZ provide?
The AD7846JPZ can provide unipolar output ranges (0 V to +5 V, 0 V to +10 V) and bipolar output ranges (±5 V, ±10 V).
- What is the settling time of the AD7846JPZ?
The settling time of the AD7846JPZ is 9 µs.
- What is the power dissipation of the AD7846JPZ?
The power dissipation of the AD7846JPZ is 100 mW.
- What is the operating temperature range of the AD7846JPZ?
The operating temperature range of the AD7846JPZ is 0°C to 70°C.
- What type of package is the AD7846JPZ available in?
The AD7846JPZ is available in a 28-lead PLCC (J-Lead) package.
- Does the AD7846JPZ have a readback function?
Yes, the AD7846JPZ has a readback function that allows reading back the DAC register contents.
- What is the architecture of the AD7846JPZ DAC?
The AD7846JPZ uses a segmented architecture with a 16-resistor string and buffer amplifiers.
- Is the AD7846JPZ suitable for ATE applications?
Yes, the AD7846JPZ is suitable for ATE applications due to its readback function and low power consumption.
- What is the maximum input voltage for the AD7846JPZ?
The maximum input voltage for the AD7846JPZ is 18 V.
