Overview
The AD7948BNZ is a 12-bit multiplying Digital-to-Analog Converter (DAC) produced by Analog Devices Inc. This device is part of the AD7943, AD7945, and AD7948 series, which are designed to operate from a single +3.3 V to +5 V supply, offering superior speed and low power consumption. The AD7948BNZ features an 8-bit byte interface, making it versatile for various applications requiring precise analog output.
Key Specifications
| Parameter | Value | Units | Test Conditions/Comments |
|---|---|---|---|
| Resolution | 12 | Bits | |
| Integral Non-Linearity (INL) | ±0.5 | LSB | |
| Differential Non-Linearity (DNL) | ±0.5 | LSB | |
| Settling Time | 600 ns (typ) | To 0.01% of Full-Scale Range with AD843 | |
| Power Consumption | 5 µW (typ) | ||
| Supply Voltage | +3.3 V to +5 V | ||
| Interface | 8-bit Byte Interface | ||
| Package | 20-pin DIP, 20-pin SOP, 20-pin SSOP |
Key Features
- 12-bit multiplying DAC with high accuracy (INL and DNL of ±0.5 LSB)
- Low power consumption of 5 µW typical
- Fast settling time of 600 ns to 0.01% of full-scale range with AD843
- Operates from a single +3.3 V to +5 V supply
- 8-bit byte interface for flexible data transfer
- Available in 20-pin DIP, SOP, and SSOP packages
Applications
The AD7948BNZ is suitable for a variety of applications, including:
- Battery-powered instrumentation
- Laptop computers
- Upgrades for all 754x series DACs (5 V designs)
Q & A
- What is the resolution of the AD7948BNZ?
The AD7948BNZ has a resolution of 12 bits. - What are the typical power consumption and settling time of the AD7948BNZ?
The typical power consumption is 5 µW, and the settling time is 600 ns to 0.01% of full-scale range with AD843. - What are the available package options for the AD7948BNZ?
The AD7948BNZ is available in 20-pin DIP, SOP, and SSOP packages. - What is the supply voltage range for the AD7948BNZ?
The supply voltage range is +3.3 V to +5 V. - What type of interface does the AD7948BNZ have?
The AD7948BNZ has an 8-bit byte interface. - What are some common applications for the AD7948BNZ?
Common applications include battery-powered instrumentation, laptop computers, and upgrades for all 754x series DACs (5 V designs). - How accurate is the AD7948BNZ in terms of INL and DNL?
The AD7948BNZ has an INL and DNL of ±0.5 LSB. - Can the AD7948BNZ replace older DAC models?
Yes, the AD7948BNZ can replace industry-standard AD7543, AD7545, and AD7548 in many applications. - What is the significance of the low power consumption of the AD7948BNZ?
The low power consumption makes it suitable for battery-powered devices and other applications where power efficiency is crucial. - How does the AD7948BNZ compare to other DACs in terms of speed and power consumption?
The AD7948BNZ offers superior speed and power consumption performance compared to older DAC models.
