ADA4941-1YRZ-R7 Analog Devices Inc, ADA4941-1YRZ-R7 Datasheet - Page 18

• Manufacturer Part Number: ADA4941-1YRZ-R7
• Description: Amplifier, Other
• Manufacturer: Analog Devices Inc
• Type: ADC Driverr

Specifications of ADA4941-1YRZ-R7

• Design Resources: Converting a Single-Ended Signal with AD7982 Differential PulSAR ADC (CN0032) Converting a Single-Ended Signal with AD7984 Differential PulSAR ADC (CN0033)
• Applications: Data Acquisition
• Mounting Type: Surface Mount
• Package / Case: 8-SOIC (3.9mm Width)
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

ADA4941-1
Table 10. Output Voltage Noise, G = 2.4 Differential Amplifier Shown in Figure 48
Noise Source
vn_A1
ip_A1
in_A1
√4 kTR
√4 kTR
√4 kTR
vn_inverter
√R
ip_A2 × R
R
vn_inverter = noise contributions from A2 and its associated internal 1 kΩ feedback resistors and 500 Ω offset current balancing resistor.
Table 11. Output Voltage Noise, G = 2 Differential Amplifier Shown in Figure 49
Noise Source
vn_A1
ip_A1
in_A1
√4 kTR
√4 kTR
√4 kTR
vn_inverter
√R
ip_A2 × R
R
Table 12. Output Voltage Noise, G = 5 Differential Amplifier Shown in Figure 50
Noise Source
vn_A1
ip_A1
in_A1
√4 kTR
√4 kTR
√4 kTR
vn_inverter
√R
ip_A2 × R
R
F
F
F
S
S
S
= 1.0 kΩ, R
= 0 Ω, R
= 1.02 kΩ, R
_REF
_REF
_REF
F
G
S
F
G
S
F
G
S
S
S
S
_REF
_REF
_REF
G
= ∞, R
G
G
= 4.99 kΩ, R
= 665 Ω, R
Typical Value
2.1 nV/√Hz
0
0
0
0
0
9.2 nV/√Hz
0
0
Totals
Typical Value
2.1 nV/√Hz
1 pA/√Hz
1 pA/√Hz
4 nV/√Hz
3.26 nV/√Hz
2.54 nV/√Hz
9.2 nV/√Hz
0
0
Totals
Typical Value
2.1 nV/√Hz
1 pA/√Hz
1 pA/√Hz
4 nV/√Hz
9 nV/√Hz
3.6 nV/√Hz
9.2 nV/√Hz
0
0
Totals
S
= 0 Ω, R
S
S
S
= 402 Ω, R
= 825 Ω, R
_REF = 0 Ω.
VOP Contribution (nV√Hz)
2.1
0
0
0
0
0
0
0
0
2.1
VOP Contribution (nV√Hz)
5.25
1
1
4
4.9
6.54
0
0
0
10.7
VOP Contribution (nV√Hz)
2.5
1
1
4
1.8
4.4
0
0
0
6.8
S
S
_REF = 0 Ω.
_REF = 0 Ω.
Rev. B | Page 18 of 24
VON Contribution (nV√Hz)
2.1
0
0
0
0
0
9.2
0
0
9.4
VON Contribution (nV√Hz)
5.25
1
1
4
4.9
6.54
9.2
0
0
14.1
VON Contribution (nV√Hz)
2.5
1
1
4
1.8
4.4
9.2
0
0
11.4
V
4.2
0
0
0
0
0
9.2
0
0
10
V
10.5
2
2
8
9.8
13.1
9.2
0
0
23.1
V
5
2
2
8
3.6
8.8
9.2
0
0
16.5
O
O
, dm Contribution (nV√Hz)
, dm Contribution (nV√Hz)
O
, dm Contribution (nV√Hz)