AD1837 is a 2-channel ADC and 8-channel DAC audio codec from Analog Devices, supporting 96kHz sample rate and 16/20/24-bit word length.
The AD1837 is a high performance single-chip codec designed for applications such as DVD video players, home theater systems, and automotive audio. It features four stereo Digital-to-Analog Converters (DACs) and one stereo Analog-to-Digital Converter (ADC). Each DAC includes independent volume control and clickless mute functions, while the ADC comprises two 24-bit conversion channels with multibit modulators.
The device supports sample rates up to 96 kHz on all channels, with a 192 kHz rate available on one DAC. It operates from a single 5 V supply but includes a separate digital interface pin for interfacing with 3.3 V devices. The AD1837 is available in a 52-lead MQFP plastic package and is specified for the industrial temperature range of –40ºC to +85ºC.
| ADC Resolution | 24 Bits |
|---|---|
| DAC Resolution | 24 Bits |
| Supply Voltage (AVDD, DVDD) | 5.0 V |
| Operating Temperature Range | -40 C to +85 C |
| Package Type | 52-Lead MQFP |
The device supports up to 96 kHz sample rates on all channels, with a 192 kHz rate available on one DAC.
The ADC offers a dynamic range of 105 dB with A-Weighted filtering.