6
®
ADS7806
3
2
1
0
–1
–2
TYPICAL PERFORMANCE CURVES
(CONT)
T
A
= +25
°
C, f
S
= 40kHz, V
DIG
= V
ANA
= +5V, using internal reference and fixed resistors shown in Figure 7b, unless otherwise specified.
0.10
0
–0.10
12-Bit LSBs
0
4095
3584
3072
2560
2048
1536
1024
512
Decimal Code
0.10
0
–0.10
12-Bit LSBs
0
4095
3584
3072
2560
2048
1536
1024
512
Decimal Code
All Codes DNL
3
2
1
0
–1
–2
0.20
0
–0.20
Percent
From Ideal
mV From Ideal
ENDPOINT ERRORS (20V BIPOLAR RANGE)
Temperature (
°
C)
–50
–25
0
25
50
75
100
125
150
–75
Percent
From Ideal
0.20
0
–0.20
0.40
0.20
0
0.40
0.20
0
Percent
From Ideal
mV From Ideal
ENDPOINT ERRORS (UNIPOLAR RANGES)
Temperature (
°
C)
–75
–50
–25
0
25
50
75
100
125
150
Percent
From Ideal
All Codes INL
UPO Error
+F
S
Error (4V Range)
+F
S
Error (5V Range)
–F
S
Error
+F
S
Error
BPZ Error
POWER SUPPLY RIPPLE SENSITIVITY
INL/DNL DEGRADATION PER LSB OF P-P RIPPLE
Power Supply Ripple Frequency (Hz)
10
1
10
2
10
3
10
4
10
5
10
6
10
7
1
10
–1
10
–2
10
–3
10
–4
10
–5
Linearity Degradation (LSB/LSB)
INL
DNL
INTERNAL REFERENCE VOLTAGE vs TEMPERATURE
–75
–50
–25
0
25
50
75
100
125
150
2.520
2.515
2.510
2.505
2.500
2.495
2.490
2.485
2.480
Internal Reference (V)
Temperature (°C)
CONVERSION TIME vs TEMPERATURE
15.10
15.00
14.90
14.80
14.70
14.60
14.50
14.40
14.30
14.20
–75
–50
–25
0
25
50
75
100
125
150
Temperature (°C)
Conversion Time (
µ
s)
