Datasheet

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62
64
66
68
70
72
74
76
78
80
82
84
1
10
100
1000
V
DD
= 3.6V,
200 KSPS
V
DD
= 2.5V,
200 KSPS
V
DD
= 1.6 V,
200 KSPS
V
DD
= 1.2 V, 100 KSPS
f
i
− Input Frequency − kHz
SFDR − Spurious Free Dynamic Range − dB
100
125
150
175
200
225
250
275
300
325
1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4
V
DD
= 3.6 V
V
DD
= 3 V
V
DD
= 2.5 V
V
DD
= 1.8 V
V
DD
= 1.6 V
T
A
= 25°C,
f
SAMPLE
= 100 KSPS
SCLK Frequency − MHz
CC
I Supply Current − − Aµ
200
225
250
275
300
325
350
375
400
425
1.6 1.8 2 2.2 2.4 2.6 2.8 3 3.2 3.4 3.6
T
A
= −40C
T
A
= 25C
T
A
= 85C
V
DD
− Supply Voltage − V
CC
I Supply Current − − Aµ
f
SAMPLE
= 200 KSPS,
f
SCLK
= 3.4 MHz
0
0.2
0.4
0.6
0.8
1
1.2
1.4
20 40 60 80 100 120 140 160 180 200
V
DD
= 3.6 V
V
DD
= 3 V
V
DD
= 2.5 V
V
DD
= 1.8 V
V
DD
= 1.6 V
Throughput − KSPS
Power Consumption − mW
T
A
= 25°C,
SCLK = 3.4 MHz
−84
−82
−80
−78
−76
−74
−72
−70
−68
−66
−64
−62
−60
−58
1 10 100 1000
R
I
= 0 
R
I
= 1000 
R
I
= 500 
R
I
= 100 
R
I
= 10 
V
DD
= 1.6 V,
T
A
= 25°C,
f
SAMPLE
= 200 KSPS,
f
SCLK
= 3.4 MHz
f
i
− Input Frequency − kHz
THD − Total Harmonic Distortion − dB
−1
−0.8
−0.6
−0.4
−0.2
0
0.2
0.4
0.6
0.8
1
0 512 1024 1536 2048 2560 3072 3584 4096
V
DD
= 1.6 V,
T
A
= 25°C,
f
SAMPLE
= 200 KSPS,
f
SCLK
= 3.4 MHz
Code
INL − LSBs
(Straight Binary in Decimal)
ADS7866
ADS7867
ADS7868
SLAS465 – JUNE 2005
TYPICAL CHARACTERISTICS ADS7866 (continued)
SPURIOUS FREE DYNAMIC RANGE SUPPLY CURRENT SUPPLY CURRENT
vs vs vs
INPUT FREQUENCY SCLK FREQUENCY SUPPLY VOLTAGE
Figure 7. Figure 8. Figure 9.
POWER CONSUMPTION TOTAL HARMONIC DISTORTION
vs vs
THROUGHPUT INPUT FREQUENCY
Figure 10. Figure 11.
INL
Figure 12.
12