MAX1034 Datasheet, PDF (10/31 Pages) Maxim Integrated Products – 8-/4-Channel, ±VREF Multirange Inputs, Serial 14-Bit ADCs

8-/4-Channel, ±V_REF Multirange Inputs,
Serial 14-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. ANALOG INPUT FREQUENCY
100
16 ^{MAX1034/35 toc20}
90
15
SNR, SINAD, ENOB vs. SAMPLE RATE
100
14 ^{MAX1034/35 toc21}
ENOB
80
14
80
13
70
SNR
13
SNR, SINAD
60
SINAD ¹²
60
12
50
11
40
ENOB
10
40
11
30
9
20
8
10
f_SAMPLE = 115ksps
±V_REF BIPOLAR RANGE
7
0
6
1
10
100
1000
FREQUENCY (kHz)
20
f_{IN(SINE WAVE)} = 5kHz
±V_REF BIPOLAR RANGE
0
0.1
1
10
100
SAMPLE RATE (ksps)
10
9
1000
-SFDR, THD vs. SAMPLE RATE
0
f_{IN(SINE WAVE)} = 5kHz
-20 ^{±VREF BIPOLAR RANGE}
-SFDR, THD vs. ANALOG INPUT
FREQUENCY
0
f_SAMPLE = 115ksps
-20 ^{±VREF BIPOLAR RANGE}
-40
-40
-60
-60
-80
-100
-120
0.1
THD
-SFDR
1
10
100
1000
SAMPLE RATE (ksps)
-80
THD
-100
-SFDR
-120
1
10
100
1000
FREQUENCY (kHz)
ANALOG INPUT CURRENT
vs. ANALOG INPUT VOLTAGE
1.5
ALL MODES
1.0
0.5
0
-0.5
-1.0
-1.5
-6 -4 -2 0 2 4 6
ANALOG INPUT VOLTAGE (V)
10 ______________________________________________________________________________________