DAC08AQ

Digital To Analog Converters Overview

The DAC08AQ is an 8-bit high-speed multiplying digital-to-analog converter from Analog Devices. It features a fast settling output current of 85 ns and full-scale current prematched to ±1 LSB. The device provides complementary current outputs with high voltage compliance ranging from −10 V to +18 V. It supports a wide range multiplying capability with a 1 MHz bandwidth and low full-scale current drift of ±10 ppm/°C. Operating over a temperature range of −55°C to +125°C, it accepts a wide power supply range of ±4.5 V to ±18 V with low power consumption of 33 mW at ±5 V.

Digital To Analog Converters Feature Summary

• 85 ns fast settling time to within ±1/2 LSB
• Direct interface to TTL, CMOS, ECL, HTL, and PMOS logic families
• Nonlinearity guaranteed to 0.1% maximum over the operating temperature range
• High output impedance and compliance voltage range of −10 V to +18 V

Digital To Analog Converters Applications

• 8-bit, 1 µs A/D converters
• Servo motor and pen drivers
• Waveform generators
• Audio encoders and attenuators
• Programmable power supplies

Digital To Analog Converters Procurement Notes

Verify the specific suffix 'AQ' against the manufacturer's ordering guide to confirm the package type and exact temperature grade. Ensure the design accounts for the specified operating temperature range of −55°C to +125°C. Confirm that the application requirements for settling time and nonlinearity align with the datasheet specifications before procurement.

Digital To Analog Converters Selection Notes

Select the DAC08AQ when an 8-bit resolution with high-speed performance is required. The device is suitable for applications needing direct logic interfacing without additional level shifters. Consider the ±10 ppm/°C full-scale current drift for precision applications. Ensure the power supply range of ±4.5 V to ±18 V matches the system design constraints.

Digital To Analog Converters Part Context

The DAC08 series comprises monolithic digital-to-analog converters designed for high speed and low cost. The DAC08AQ belongs to this family, offering advanced circuit design for low glitch energy and monotonic performance. It is part of Analog Devices' portfolio of data conversion ICs, targeting applications requiring versatile input/output capabilities and compact size.

Digital To Analog Converters Replacement Considerations

Check the manufacturer's ordering guide for equivalent parts within the DAC08 series, such as DAC08CP or DAC08E, noting differences in temperature ranges and performance grades. Verify pin compatibility and electrical specifications before substitution.

Digital To Analog Converters FAQ

What is the logic threshold voltage range for the DAC08AQ?

The logic threshold voltage can be adjusted over a wide range by placing an appropriate voltage at the VLC pin (Pin 1). For V− = −15 V, the logic inputs may swing between −10 V and +18 V.

How is the reference amplifier compensated for multiplying applications?

For AC reference applications, a capacitor must be connected from Pin 16 to V−. The value depends on the impedance at Pin 14; for R14 values of 1.0 kΩ, 2.5 kΩ, and 5.0 kΩ, minimum CC values are 15 pF, 37 pF, and 75 pF, respectively.

What is the maximum power dissipation at ±15 V supplies?

At ±15 V supplies with IREF = 2.0 mA, the power dissipation is typically 135 mW and has a maximum rating of 174 mW.