MAX1391 Datasheet, PDF (6/18 Pages) Maxim Integrated Products – 1.5V to 3.6V, 416ksps, 1-Channel True-Differential/2-Channel Single-Ended, 8-Bit, SAR ADCs

1.5V to 3.6V, 416ksps, 1-Channel True-Differential/
2-Channel Single-Ended, 8-Bit, SAR ADCs
Typical Operating Characteristics
(V_DD = +1.6V, V_REF = +1.6V, C_REF = 0.1µF, C_L = 30pF, f_SCLK = 5MHz. T_A = +25°C, unless otherwise noted.)
INL vs. CODE
0.10
0.08
0.06
0.04
0.02
0
-0.02
-0.04
-0.06
-0.08
-0.10
0
32 64 96 128 160 192 224 256
CODE
INL ERROR vs. REFERENCE VOLTAGE
0.10
0.08
V_DD = 3.6V
0.06
MAX INL
0.04
0.02
0
-0.02
-0.04
-0.06
MIN INL
-0.08
-0.10
0.6 1.1 1.6 2.1 2.6 3.1 3.6
REFERENCE VOLTAGE (V)
0.10
0.08
0.06
0.04
0.02
0
-0.02
-0.04
-0.06
-0.08
-0.10
0
DNL vs. CODE
V_DD = 1.5V
V_REF = 1.5V
32 64 96 128 160 192 224 256
CODE
DNL ERROR vs. REFERENCE VOLTAGE
0.10
0.08
V_DD = 3.6V
MAX DNL
0.06
0.04
0.02
0
-0.02
-0.04
-0.06
-0.08
MIN DNL
-0.10
0.6 1.1 1.6 2.1 2.6 3.1 3.6
REFERENCE VOLTAGE (V)
OFFSET ERROR vs. SUPPLY VOLTAGE
400
V_REF = 1.5V
300 TEMPERATURE = +25°C
200
AIN2
100
0
-100
AIN1
-200
-300
-400
1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6
SUPPLY VOLTAGE (V)
OFFSET ERROR vs. TEMPERATURE
400
300
200
AIN2
100
0
-100
AIN1
-200
-300
V_DD = 3.6V
-400
-55 -25 5 35 65 95 125
TEMPERATURE (°C)
OFFSET ERROR vs. REFERENCE VOLTAGE
400
300
200
100
0
-100
-200
-300
-400
0.6
V_DD = 3.6V
1.1 1.6 2.1 2.6 3.1 3.6
REFERENCE VOLTAGE (V)
GAIN ERROR vs. SUPPLY VOLTAGE
400
V_REF = 1.5V
300 TEMPERATURE = +25°C
200
100
AIN2
0
-100
AIN1
-200
-300
-400
1.5 1.8 2.1 2.4 2.7 3.0 3.3 3.6
SUPPLY VOLTAGE (V)
GAIN ERROR vs. TEMPERATURE
400
V_DD = 2.6V
300
AIN2
200
100
0
-100
AIN1
-200
-300
-400
-55 -25 5
35 65 95 125
TEMPERATURE (°C)
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