The AD7118 is a CMOS multiplying D/A converter that attenuates an analog input signal over the range of 0 to -85.5 dB in 1.5 dB steps. The analog output is determined by a six-bit attenuation code applied to the digital inputs. The device operates in the frequency range from dc to several hundred kHz. It is manufactured using an advanced monolithic silicon gate thin-film on CMOS process and is packaged in a 14-pin dual-in-line package.
The AD7118 is a CMOS multiplying D/A converter that attenuates an analog input signal over the range of 0 to -85.5 dB in 1.5 dB steps. The device operates from DC to several hundred kHz and is available with full military temperature ranges (-55°C to +125°C). It utilizes a six-bit attenuation code applied to digital inputs to determine the analog output.
The document provides detailed specifications including nominal resolution, accuracy relative to input voltage, monotonic range, and power supply requirements. It also lists absolute maximum ratings for voltage and temperature, along with AC performance characteristics such as propagation delay, distortion figures, and noise density.
| Dynamic Range | 85.5 dB |
|---|---|
| Resolution | 1.5 dB |
| Operating Temperature Range (Extended) | -55°C to +125°C |
| Supply Voltage | Single 5 V to 15 V |
The device attenuates an analog input signal over the range 0 to -85.5 dB in 1.5 dB steps.
Yes, it is an ESD sensitive device where electrostatic charges as high as 4000 V can cause permanent damage.