| Distributor | Stock | Pricing | MOQ | PKG | Lead Time | Date Code | On Order Quantity | On Order Delivery | |
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2,500 pcs
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2500 pcs | On Request | 1 | On Request | On Request | On Request | On Request | On Request |
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The AD7111BQ is a monolithic logarithmic multiplying D/A converter from Analog Devices, part of the LOGDAC family. It provides precise attenuation of analog input signals over a range of 0 dB to 88.5 dB in fine 0.375 dB steps, controlled by an 8-bit digital word that is internally decoded to drive a 17-bit R-2R ladder. This architecture delivers excellent resolution and wide dynamic range in a compact 16-pin CerDIP package.
The device operates from a +5 V supply and features a parallel data interface, on-chip data latches, and low power consumption. The digital attenuation is set via an 8-bit data port, making it easy to interface with standard 8-bit microprocessor buses. The output is current-unbuffered, and the device does not provide differential output.
The AD7111BQ is housed in a 16-lead CerDIP package (16-CDIP, 0.300" width) and is specified for the industrial temperature range of -40°C to +85°C. Its through-hole mounting makes it suitable for prototyping and legacy designs requiring robust ceramic packaging.
Ideal applications include audio attenuators, sonar systems, function generators, and digitally controlled automatic gain control (AGC) circuits. The AD7111A variant is pin-compatible with the industry-standard AD7524, enabling straightforward upgrades to wider dynamic range and finer resolution.
The AD7111BQ is a 17-bit digital-to-analog converter.
The AD7111BQ provides a dynamic range of 88.5 dB with a step resolution of 0.375 dB.
The AD7111BQ operates from a single 5 V supply.
The AD7111BQ is available in a 16-lead CerDIP package (16-CDIP, 0.300" width).
The AD7111BQ operates over -40°C to +85°C.
The AD7111BQ uses a parallel data interface.
The AD7111BQ provides a current-unbuffered output.