TS616 STMicroelectronics, TS616 Datasheet - Page 23

• Manufacturer Part Number: TS616
• Description: Multi video line driver (6 lines) and ADSL driver
• Manufacturer: STMicroelectronics

Specifications of TS616

• Low Noise: 2.5nV/√Hz
• High Output Current: 420mA
• High Slew Rate: 420V/µs
• -3db Bandwidth: 40MHz @ gain = 12dB on 25

TS616
7
Noise measurements
The noise model is shown in
●
●
●
Figure 62. Noise model
The closed loop gain is:
The six noise sources are:
We assume that the thermal noise of a resistance R is:
where F is the specified bandwidth.
On a 1 Hz bandwidth the thermal noise is reduced to:
where k is Boltzmann's constant, equal to 1374.10
eN: input voltage noise of the amplifier
iNn: negative input current noise of the amplifier
iNp: positive input current noise of the amplifier
R3
R3
N3
N3
R1
R1
Figure
V1
V2
V3
V4
V5
V6
iN+
iN+
iN-
iN-
N1
N1
N2
N2
=
=
=
=
=
=
62, where:
eN
iNn
iNp
–
A
1
R2
------- -
R1
4kTR2
eN
eN
V
+
=
R2
------- -
R1
4kTR F
+
+
R2
R3
_
_
4kTR
g
1
TS616
TS616
+
4kTR1
=
R2
------- -
R1
4kTR3
1
R2
R2
1
+
-23
+
R
--------
R
fb
R2
------- -
R1
g
J/°K. T is the temperature (°K).
output
output
HP3577
HP3577
Input noise:
Input noise:
8nV/ Hz
8nV/ Hz
Noise measurements
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