ADS8284
SLAS628–MARCH 2009................................................................................................................................................................................................... www.ti.com
TYPICAL CHARACTERISTICS (continued)
EFFECTIVE NUMBER OF BITS
vs
MULTIPLEXER CHANNELS
VCM_O VOLTAGE
vs
OPA SUPPLY VOLTAGE (VCC)
BUF_REF OUTPUT VOLTAGE
vs
OPA SUPPLY VOLTAGE (VCC)
2.04145
2.0414
2.04135
2.0413
2.04125
2.0412
2.04115
2.0411
4.0871
4.087
16.25
16.2
T
= 25°C,
T
= 25°C,
A
T
= 25°C,
A
A
V
= 4.096 V,
V
= 4.096 V,
ref
V
= 4.096 V,
ref
ref
+VA = 5 V,
VCC = - VEE
VCC = 6 V,
VEE = -6 V,
+VA = 5 V,
+VA = 5 V,
VCC = - VEE
4.0869
4.0868
4.0867
4.0866
f = 1.9 kHz,
i
16.15
Throughput = 1 MSPS
16.1
16.05
16
2.04105
4.0865
4.0864
2.041
2.04095
4
4.5
5
5.5
- Supply Voltage -
6
6.5
7
7.5
8
4
4.5
5
5.5
- Supply Voltage - V
6
6.5
7
7.5
8
0
1
2
Multiplexer Channels
3
V
V
V
CC
CC
Figure 63.
Figure 64.
Figure 65.
TYPICAL DNL
0.5
0.4
0.3
0.2
0.1
0
-0.1
-0.2
-0.3
-0.4
-0.5
1
50001
100001
150001
200001
250001
CODES
Test conditions: +VA = 5 V, +VBD = 5 V, TA =25°C, Fs = 1 MSPS, Vref = 4.096 V
Figure 66.
Figure 67.
TYPICAL INL
0.8
0.3
-0.2
-0.7
-1.2
0
50000
100000
150000
CODES
200000
250000
Test conditions: +VA = 5 V, +VBD = 5 V, TA =25°C, Fs = 1 MSPS, Vref = 4.096 V
Figure 68.
24
Submit Documentation Feedback
Copyright © 2009, Texas Instruments Incorporated
Product Folder Link(s) :ADS8284
TI [ TEXAS INSTRUMENTS ]
