SBOA585
March 2024
ADS127L11
,
ADS127L11
,
ADS127L21
,
ADS127L21
,
PGA855
,
PGA855
1
Abstract
Trademarks
1
PGA855 and ADS127L21, 24-Bit, Delta-Sigma ADC Driver Circuit
2
PGA855 Analog Front-End Filters
3
ADS127Lx1 Delta-Sigma ADC and Digital Filter
4
Approximate PGA855 Intrinsic Noise Analysis
4.1
Simplified Noise Model for the PGA855
4.2
PGA855 Spectral Noise Density vs Frequency
4.3
PGA855 Effective Noise Bandwidth
4.4
PGA855 Low Frequency (1/f) Noise Calculation
4.5
PGA855 Voltage Broadband Noise
4.6
PGA855 Current Noise and Source Resistance
4.7
PGA855 Total Noise
5
PGA855 and ADS127Lx1 System Noise
6
PGA855 and ADS127Lx1 SNR and Noise Calculator
7
PGA855 and ADS127Lx1 FFT Measured Performance
8
Summary
9
References
Application Note
Achieve High SNR with the PGA855, Fully Differential Programmable-Gain Amplifier