MAX11156 Datasheet, PDF (7/27 Pages) Maxim Integrated Products – 18-Bit, 500ksps, ±5V SAR ADC with Internal Reference in TDFN

MAX11156
18-Bit, 500ksps, ±5V SAR ADC
with Internal Reference in TDFN
Typical Operating Characteristics (continued)
(V_DD = 5V, V_OVDD = 3.3V, f_SAMPLE = 500kHz, V_REF = 4.096V, Reference Mode 3, T_A = +25NC, unless otherwise noted.)
DIFFERENTIAL NONLINEARITY
vs. CODE
1.0
SINGLE DEVICE
0.5
DNL vs. TEMPERATURE
1.0
MAX DNL
MIN DNL
0.6
DNL vs. VDD SUPPLY VOLTAGE
1.0
MAX DNL
MIN DNL
0.6
0.2
0.2
0
-0.2
-0.2
-0.5
-1.0
0
65536 131072 196608 262144
32768 98304 163840 229376
OUTPUT CODE (DECIMAL)
INTERNAL REFERENCE VOLTAGE
(REF PIN) vs. TEMPERATURE
4.102
4.101
4.100
4.099
1
2
3
4
5
6
7
8
9
10
11 12 13 14 15
4.098
4.097
4.096
4.095
4.094
4.093
4.092
4.091
4.090
-40 -15
10
35
60
85
TEMPERATURE (°C)
-0.6
-1.0
-40
AVERAGE OF 128 DEVICES
-15
10
35
60
85
TEMPERATURE (°C)
INITIAL ERROR VOLTAGE ON REF PIN
50
303 DEVICES
MEAN = 4096.0mV
40
30
20
10
0
4.093 4.094 4.095 4.096 4.097 4.098 4.099
REF PIN VOLTAGE (V)
-0.6
AVERAGE OF 128 DEVICES
-1.0
4.75 4.85 4.95 5.05 5.15 5.25
VDD (V)
REF PIN THERMAL DRIFT SLOPE
70
303 DEVICES
MEAN = -7.3ppm/°C
60 STDEV =
1.9ppm/°C
303 DEVICES
MEAN = 2.1ppm/°C
STDEV =
1.9ppm/°C
50
+25°C
40
TO -40°C
+25°C
30
TO -85°C
20
10
0
-16 -12 -8 -4 0 4 8 12
-14 -10 -6 -2 2 6 10
THERMAL DRIFT (ppm/°C)
0
-20
-40
-60
-80
-100
-120
-140
0
FFT PLOT
fSAMPLE = 500ksps
NSAMPLE = 4096
f_IN = 11597Hz
VIN = -0.1dBFS
REF MODE = 0
V_REF = 4.096V
SINGLE DEVICE
SNR = 93.8dB
SINAD = 93.8dB
SFDR = 105.4dB
THD = -103.4dB
50 100 150 200 250
FREQUENCY (kHz)
0
-20
-40
-60
-80
-100
-120
-140
0
FFT PLOT
fSAMPLE = 500ksps
NSAMPLE = 4096
f_IN = 10132Hz
VIN = -0.1dBFS
REF MODE = 3
VREF = 4.096V
SINGLE DEVICE
SNR = 94.6dB
SINAD = 94.2dB
SFDR = 105.6dB
THD = -104.5dB
50 100 150 200 250
FREQUENCY (kHz)
0
-20
-40
-60
-80
-100
-120
-140
5
TWO TONES IMD
fSAMPLE = 500ksps
NSAMPLE = 16384
F_IN1 = 9368.9Hz
VIN1 = -6.1dBFS
F_IN2 = 10651Hz
VIN2 = -6.1dBFS
REF MODE = 3
V_REF = 4.096V
SINGLE DEVICE
IMD = -116.9dBFS
7
9
11
13
15
FREQUENCY (kHz)
www.maximintegrated.com
Maxim Integrated │  7