MAX11321 Datasheet, PDF (10/37 Pages) Maxim Integrated Products – 1Msps, 10-/12-Bit, 4-/8-/16-Channel ADCs with Post-Mux External Signal Conditioning Access

MAX11321–MAX11328
1Msps, 10-/12-Bit, 4-/8-/16-Channel ADCs with
Post-Mux External Signal Conditioning Access
Typical Operating Characteristics (continued)
(MAX11322ATJ+/MAX11325ATJ+/MAX11328ATJ+, T_A = +25°C, unless otherwise noted.)
SNR vs. INPUT RESISTANCE
73.0
BUFFER BETWEEN AOP AND AIP
BUFFER BETWEEN AON AND AIN
72.5
SINAD vs. INPUT RESISTANCE
73
-70
BUFFER BETWEEN AOP AND AIP
BUFFER BETWEEN AON AND AIN
-75
72
THD vs. INPUT RESISTANCE
fSAMPLE = 1Msps
fIN = 100kHz
AOP SHORTED TO AIP
AON SHORTED TO AIN
72.0
AOP SHORTED TO AIP
AON SHORTED TO AIN
71.5
fSAMPLE = 1Msps
fIN = 100kHz
71.0
0 1000 2000 3000 4000 5000
500 1500 2500 3500 4500
RIN (I)
AOP SHORTED TO AIP
71
AON SHORTED TO AIN
fSAMPLE = 1Msps
fIN = 100kHz
70
0 1000 2000 3000 4000 5000
500 1500 2500 3500 4500
RIN (I)
-80
BUFFER BETWEEN AOP AND AIP
-85
BUFFER BETWEEN AON AND AIN
-90
0 1000 2000 3000 4000 5000
500 1500 2500 3500 4500
RIN (I)
SFDR vs. INPUT RESISTANCE
90
BUFFER BETWEEN AOP AND AIP
BUFFER BETWEEN AON AND AIN
85
AOP SHORTED TO AIP
80
AON SHORTED TO AIN
fSAMPLE = 1Msps
fIN = 100kHz
75
0 1000 2000 3000 4000 5000
500 1500 2500 3500 4500
RIN (I)
100kHz SINE-WAVE INPUT
(8192 POINT FFT PLOT)
0
fSAMPLE = 1Msps
-20
fIN = 100kHz
-40
-60
AHD3 = -86.69dB
f = 300kHz
AHD2 = -102.99dB
-80
f = 200kHz
-100
-120
0 50 100 150 200 250 300 350 400 450 500
FREQUENCY (kHz)
REFERENCE CURRENT
vs. SAMPLING RATE
50
40
30
20
10
0
0
500
1000
fSAMPLE (ksps)
SUPPLY CURRENT vs. TEMPERATURE
3.0
fSAMPLE = 1Msps
V_DD = 3.0V
2.5
SNR vs. REFERENCE VOLTAGE
74
73
72
2.0
71
1.5
1.0
-40 -25 -10 5 20 35 50 65 80 95 110 125
TEMPERATURE (°C)
Maxim Integrated
70
69
fSAMPLE = 1Msps
fIN = 100kHz
68
1.0 1.4 1.8 2.2 2.6 3.0 3.4
VREFP (V)
  10