Variable Inverter: Can Output Depend on Digital Resistor?

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A variable inverter can potentially have its output controlled by a digital resistor, as suggested in the discussion. Programmable Gain Amplifiers (PGAs) are highlighted as a relevant technology, allowing for gain adjustments via a digital interface. These PGAs offer high accuracy and low drift, making them suitable for applications requiring precise output control. The conversation emphasizes the importance of defining "output" in this context. Overall, integrating digital resistors with inverters could enhance their functionality and adaptability in various circuits.
ThatNinthGuy
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Hi

Would it be possible to make an inverter, with the output dependant on a digital resistor?

Simon
 
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Define output.
 
ThatNinthGuy, Welcome to Physics Forums!

Here is one manufacturer of Integrated Circuits that makes inverting amplifiers with digital gain control:

Programmable Gain Amplifiers

Set your gain with a simple serial or parallel interface from 1 to over 4000V/V. Linear Technology's PGAs (programmable gain amplifiers) provide excellent gain accuracy, channel-to-channel matching specs, and low 1ppm/°C drift.

For circuit ideas drawn from our vast library of datasheets, design notes and application notes, visit our new op amp circuit collection

http://www.linear.com/products/programmable_gain_amplifiers

Cheers,
Bobbywhy
 

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