| AD1555 | Analog Devices | 24-Bit, 121 dB typical SNR, Sigma-Delta ADC with integrated PGA |
| AD1555AP | Analog Devices | 24-Bit, 121 dB typical SNR, Sigma-Delta ADC with integrated PGA |
| AD1556 | Analog Devices | Digital Filter/Decimator for 24-Bit Sigma-Delta ADC |
| AD1556AS | Analog Devices | Digital Filter/Decimator for 24-Bit Sigma-Delta ADC |
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