AD7112 Analog Devices, AD7112 Datasheet - Page 9

• Manufacturer Part Number: AD7112
• Description: Dual CMOS Multiplying DAC with Anti-Log Transfer Function for Audio Volume Control Applications
• Manufacturer: Analog Devices

Specifications of AD7112

• Resolution (bits): 17bit
• Dac Update Rate: 222kSPS
• Dac Settling Time: n/a
• Max Pos Supply (v): +5.25V
• Single-supply: Yes
• Dac Type: Current Out
• Dac Input Format: Par

REV. 0
Figure 14. Typical Attenuation Error for 0.75 dB Steps
Figure 15. Typical Attenuation Error for 3 dB Steps vs.
Temperature
–0.5
–1.0
–0.2
–0.4
–0.6
1.0
0.5
0.0
0.4
0.2
0.0
0
*
0
*
*
6
* * *
3
V
12
V
T
DD
* *
A
DD
*
= +5V
= +25
6
18
= +5V
* *
°
24
* * * * * *
C
9
30
ATTENUATION – dB
ATTENUATION – dB
12
36
* *
T
A
* * *
= +85
42
15
* *
48
°
C
18
*
* *
54
* * *
T
21
60
A
= +25
* *
66
24
*
°
*
C
72
*
* *
27
78
*
* *
84
30
*
–9–
Figure 16. Accuracy Specification for B Grade Devices at
T
Figure 17. Accuracy Specification for C Grade Devices at
T
A
A
= +25 C
= +25 C
–0.17
–0.17
+0.17
+0.17
–1
–2
–1
–2
2
1
0
2
1
0
0
0
0.375 dB ATTENUATION STEPS
6
6
0.375 dB ATTENUATION STEPS
12
12
MONOTONICITY FOR 1.5 dB ATTENUATION STEPS
MONOTONICITY FOR 1.5 dB ATTENUATION STEPS
18
18
0.75 dB ATTENUATION STEPS
0.75 dB ATTENUATION STEPS
24
24
30
30
ATTENUATION – dB
ATTENUATION – dB
36
36
42
42
48
48
54
54
60
60
66
66
AD7112
72
72
78 84
78 84
85.5
90
90