Datasheet

ADAS3022 Data Sheet
Rev. B | Page 4 of 40
Parameter Test Conditions/Comments Min Typ Max Unit
1
Offset Error Temperature Drift External reference
PGIA gain = 0.16, 0.2, 0.4, 0.8 0.1 0.5 ppm/°C
PGIA gain = 1.6 0.2 1.0 ppm/°C
PGIA gain = 3.2 0.4 2.0 ppm/°C
PGIA gain = 6.4
0.8
4.0
ppm/°C
Total Unadjusted Error External reference, T
A
= 25°C
PGIA gain = 0.16, 0.2, 0.4, 0.8, 1.6, 3.2 −9 +9 LSB
PGIA gain = 6.4 −15 +15 LSB
AC ACCURACY
3
Signal-to-Noise Ratio (SNR) f
IN
= 10 kHz
PGIA gain = 0.16 90.0 91.5 dB
PGIA gain = 0.2 90.0 91.5 dB
PGIA gain = 0.4 89.5 91.5 dB
PGIA gain = 0.8
89.0
91.0
dB
PGIA gain = 1.6 88.0 89.7 dB
PGIA gain = 3.2 86.0 86.8 dB
PGIA gain = 6.4 83.0 84.5 dB
Signal-to-Noise-and-Distortion
(SINAD)
f
IN
= 10 kHz
PGIA gain = 0.16 88.0 90.0 dB
PGIA gain = 0.2 88.0 90.0 dB
PGIA gain = 0.4 88.5 91.0 dB
PGIA gain = 0.8 88.5 90.5 dB
PGIA gain = 1.6 87.5 89.5 dB
PGIA gain = 3.2
85.5
86.5
dB
PGIA gain = 6.4 82.5 84.0 dB
Dynamic Range f
IN
= 10 kHz, −60 dB input
PGIA gain = 0.16 91.0 92.0 dB
PGIA gain = 0.2 91.0 92.0 dB
PGIA gain = 0.4 90.5 91.5 dB
PGIA gain = 0.8 90.0 91.0 dB
PGIA gain = 1.6 89.0 90.0 dB
PGIA gain = 3.2 86.0 87.0 dB
PGIA gain = 6.4 83.5 85.0 dB
Total Harmonic Distortion f
IN
= 10 kHz, all PGIA gains −100 dB
Spurious-Free Dynamic Range f
IN
= 10 kHz, all PGIA gains 101 dB
Channel-to-Channel Crosstalk f
IN
= 10 kHz, all channels inactive −120 dB
Common-Mode Rejection Ratio
(CMRR)
f
IN
= 2 kHz
PGIA gain = 0.16, 0.2, 0.4, 0.8 90.0 110.0 dB
PGIA gain = 1.6 90.0 105.0 dB
PGIA gain = 3.2 90.0 98.0 dB
PGIA gain = 6.4 90.0 98.0 dB
−3 dB Input Bandwidth −40 dBFS 8 MHz
AUXILIARY ADC INPUT CHANNEL
DC Accuracy External reference
Integral Nonlinearity Error −1.5 ±0.5 +1.5 LSB
Differential Nonlinearity Error −0.8 ±0.6 +1.0 LSB
Gain Error −2.5 ±0.2 +2.5 LSB
Offset Error
−5
±0.2
+5
LSB