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ADA4950-1YCPZ-R2 数据表(PDF) 8 Page - Analog Devices

部件名 ADA4950-1YCPZ-R2
功能描述  Low Power, Selectable Gain Differential ADC Driver, G = 1, 2, 3
Download  26 Pages
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制造商  AD [Analog Devices]
网页  http://www.analog.com
标志 AD - Analog Devices

ADA4950-1YCPZ-R2 数据表(HTML) 8 Page - Analog Devices

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ADA4950-1/ADA4950-2
Data Sheet
Rev. B | Page 8 of 26
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
NOTES
1. SOLDER THE EXPOSED PADDLE ON THE BACK OF
THE PACKAGE TO A GROUND PLANE OR TO A
POWER PLANE.
+INB
+INA
–INA
–INB
–OUT
PD
+OUT
VOCM
12
11
10
1
3
4
9
2
ADA4950-1
TOP VIEW
(Not to Scale)
Figure 5. ADA4950-1 Pin Configuration
2
1
3
4
5
6
18
17
16
15
14
13
+INA2
+INB2
+VS1
+VS1
–INB1
–INA1
–OUT2
PD2
–VS2
–VS2
VOCM1
+OUT1
ADA4950-2
TOP VIEW
(Not to Scale)
NOTES
1. SOLDER THE EXPOSED PADDLE ON THE BACK OF
THE PACKAGE TO A GROUND PLANE OR TO A
POWER PLANE.
Figure 6. ADA4950-2 Pin Configuration
Table 9. ADA4950-1 Pin Function Descriptions
Pin No.
Mnemonic
Description
1
+INB
Positive Input B, 250 Ω Input. Use alone for G = 2 or tie to +INA for G = 3.
2
+INA
Positive Input A, 500 Ω Input. Use alone for G = 1 or tie to +INB for G = 3.
3
−INA
Negative Input A, 500 Ω Input. Use alone for G = 1 or tie to −INB for G = 3.
4
−INB
Negative Input B, 250 Ω Input. Use alone for G = 2 or tie to −INA for G = 3.
5 to 8
+VS
Positive Supply Voltage.
9
VOCM
Output Common-Mode Voltage.
10
+OUT
Positive Output.
11
−OUT
Negative Output.
12
PD
Power-Down Pin.
13 to 16
−VS
Negative Supply Voltage.
17 (EPAD)
Exposed Paddle (EPAD)
Solder the exposed paddle on the back of the package to a ground plane or to a power plane.
Table 10. ADA4950-2 Pin Function Descriptions
Pin No.
Mnemonic
Description
1
−INA1
Negative Input A, Amplifier 1, 500 Ω Input. Use alone for G = 1 or tie to –INB1 for G = 3.
2
−INB1
Negative Input B, Amplifier 1, 250 Ω Input. Use alone for G = 2 or tie to –INA1 for G = 3.
3, 4
+VS1
Positive Supply Voltage, Amplifier 1.
5
+INB2
Positive Input B, Amplifier 2, 250 Ω Input. Use alone for G = 2 or tie to +INA2 for G = 3.
6
+INA2
Positive Input A, Amplifier 2, 500 Ω Input. Use alone for G = 1 or tie to +INB2 for G = 3.
7
−INA2
Negative Input A, Amplifier 2, 500 Ω Input. Use alone for G = 1 or tie to –INB2 for G = 3.
8
−INB2
Negative Input B, Amplifier 2, 250 Ω Input. Use alone for G = 2 or tie to –INA2 for G = 3.
9, 10
+VS2
Positive Supply Voltage, Amplifier 2.
11
VOCM2
Output Common-Mode Voltage, Amplifier 2.
12
+OUT2
Positive Output, Amplifier 2.
13
−OUT2
Negative Output, Amplifier 2.
14
PD2
Power-Down Pin, Amplifier 2.
15, 16
−VS2
Negative Supply Voltage, Amplifier 2.
17
VOCM1
Output Common-Mode Voltage, Amplifier 1.
18
+OUT1
Positive Output, Amplifier 1.
19
−OUT1
Negative Output, Amplifier 1.
20
PD1
Power-Down Pin, Amplifier 1.
21, 22
−VS1
Negative Supply Voltage, Amplifier 1.
23
+INB1
Positive Input B, Amplifier 1, 250 Ω Input. Use alone for G = 2 or tie to +INA1 for G = 3.
24
+INA1
Positive Input A, Amplifier 1, 500 Ω Input. Use alone for G = 1 or tie to +INB1 for G = 3.
25 (EPAD)
Exposed Paddle (EPAD)
Solder the exposed paddle on the back of the package to a ground plane or to a power plane.


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