MAX11335 Datasheet, PDF (10/37 Pages) Maxim Integrated Products – 500ksps, 12-/10-Bit, 4-/8-/16-Channel ADCs

MAX11335–MAX11340
500ksps, 12-/10-Bit, 4-/8-/16-Channel ADCs with
Post-Mux External Signal Conditioning Access
Typical Operating Characteristics (continued)
(MAX11335ATJ+/MAX11336ATJ+/MAX11337ATJ+, T_A = +25°C, unless otherwise noted.)
SNR vs. INPUT RESISTANCE
73.0
fSAMPLE = 500ksps
f_IN = 100kHz
72.5
SINAD vs. INPUT RESISTANCE
73
fSAMPLE = 500ksps
fIN = 100kHz
AOP SHORTED TO AIP
AON SHORTED TO AIN
72
THD vs. INPUT RESISTANCE
-70
fSAMPLE = 500ksps
fIN = 100kHz
AOP SHORTED TO AIP
-75
AON SHORTED TO AIN
72.0
AOP SHORTED TO AIP
AON SHORTED TO AIN
71.5
BUFFER BETWEEN AOP AND AIP
BUFFER BETWEEN AON AND AIN
71.0
0 1000 2000 3000 4000 5000
500 1500 2500 3500 4500
RIN (I)
SFDR vs. INPUT RESISTANCE
90
fSAMPLE = 500ksps
fIN = 100kHz
71
BUFFER BETWEEN AOP AND AIP
BUFFER BETWEEN AON AND AIN
-80
BUFFER BETWEEN AOP AND AIP
-85
BUFFER BETWEEN AON AND AIN
70
0 1000 2000 3000 4000 5000
500 1500 2500 3500 4500
RIN (I)
100kHz SINE-WAVE INPUT
(8192 POINT FFT PLOT)
0
fSAMPLE = 500ksps
fIN = 100kHz
-20
-90
0
1000 2000 3000 4000 5000
500 1500 2500 3500 4500
RIN (I)
REFERENCE CURRENT
vs. SAMPLING RATE
30
85
BUFFER BETWEEN AOP AND AIP
-40
BUFFER BETWEEN AON AND AIN
-60
80
-80
AOP SHORTED TO AIP
-100
AON SHORTED TO AIN
75
0 1000 2000 3000 4000 5000
500 1500 2500 3500 4500
RIN (I)
-120
0
SUPPLY CURRENT vs. TEMPERATURE
2.5
fSAMPLE = 500ksps
VDD = 3.0V
2.0
20
AHD2 = -102dB
f = 200.03kHz _{AHD3 = -86.678dB}
f = 205.399kHz
10
50 100 150 200 250
FREQUENCY (kHz)
0
0
100 200 300 400 500
fSAMPLE (ksps)
SNR vs. REFERENCE VOLTAGE
74
fSAMPLE = 500ksps
fIN = 100kHz
73
72
1.5
71
70
1.0
69
0.5
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
68
1.0 1.4 1.8 2.2 2.6 3.0 3.4
VREFP (V)
Maxim Integrated
  10