MAX1302 Datasheet, PDF (10/31 Pages) Maxim Integrated Products – 8-/4-Channel, VREF Multirange Inputs, Serial 16-Bit ADCs

8-/4-Channel, ±V_REF Multirange Inputs,
Serial 16-Bit ADCs
Typical Operating Characteristics (continued)
(AV_DD1 = AV_DD2 = DV_DD = DV_DDO = 5V, AGND1 = DGND = DGNDO = AGND2 = AGND3 = 0, f_CLK = 3.5MHz (50% duty cycle),
external clock mode, V_REF = 4.096V (external reference operation), REFCAP = AV_DD1, maximum single-ended bipolar input range
(±V_REF), C_DOUT = 50pF, C_SSTRB = 50pF; unless otherwise noted.)
SNR, SINAD, ENOB
vs. SAMPLE RATE
100
16 ^{MAX1302/03 toc21}
SNR, SINAD
80
14
ENOB
60
12
-SFDR, THD
vs. SAMPLE RATE
0
f_{IN(SINE WAVE)} = 5kHz
-20 ^{±VREF BIPOLAR RANGE}
-40
-60
40
10
-80
20
0
0.1
8
f_{IN(SINE WAVE)} = 5kHz
±V_REF BIPOLAR RANGE
6
1
10
100
1000
SAMPLE RATE (ksps)
-SFDR, THD
vs. ANALOG INPUT FREQUENCY
0
f_SAMPLE = 115ksps
-20
±V_REF BIPOLAR RANGE
-100
THD
-120
0.1
-SFDR
1
10
100
1000
SAMPLE RATE (ksps)
ANALOG INPUT CURRENT
vs. ANALOG INPUT VOLTAGE
1.5
1.0
-40
0.5
-60
0
-80
-0.5
-100
THD
-SFDR
-1.0
-120
1
10
100
1000
FREQUENCY (kHz)
-1.5
-6 -4 -2 0 2 4
6
ANALOG INPUT VOLTAGE (V)
SMALL-SIGNAL BANDWIDTH
0
-5
-10
-15
-20
-25
-30
1
10
100
1000
FREQUENCY (kHz)
10,000
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