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ZL40162 반도체 회로 부품 판매점

High Output Current High Speed Dual Operational Amplifier



Zarlink Semiconductor Inc 로고
Zarlink Semiconductor Inc
ZL40162 데이터시트, 핀배열, 회로
ZL40162
High Output Current
High Speed Dual Operational Amplifier
Data Sheet
Features
• High Output Drive
• 18.8 Vpp differential output voltage, RL = 50
• 9.4 Vpp single-ended output voltage, RL =
25
• High Output Current
• ± 200mA @ Vo = 9.4 Vpp, Vs = 12V
• Low Distortion
• 83dB SFDR (Spurious Free Dynamic Range)
@ 100KHz, Vo = 2Vpp, RL = 25
• High Speed
• 158MHz 3dB bandwidth (G=2)
• 195V / µs slew rate
• Low Noise
• 3.8nV / Hz: input noise voltage
• 2.7pA / Hz: input noise current
• Low supply current: 7mA/amp
• Single-supply operation: 5V to 12V
• High ESD (Electro-Static Discharge) immunity
• 4kV for Supply and Output pins
• Low differential gain and phase
• 0.01% and -0.1deg
Applications
• ADSL PCI modem cards
• xDSL external modem
• Line Driver
April 2003
Ordering Information
ZL40162/DCA
ZL40162/DCB
(tubes) 8 lead SOIC
(tape and reel) 8 lead SOIC
-40°C to +85°C
Description
The ZL40162 is a low cost voltage feedback opamp
capable of driving signals to within 1V of the power
supply rails. It features low noise and low distortion
accompanied by a high output current which makes it
ideally suited for the application as an xDSL line driver.
The dual opamp can be connected as a differential line
driver delivering signals up to 18.8Vpp swing into a 25
load, fully supporting the peak upstream power levels
for upstream full-rate ADSL (Asymmetrical Digital
Subscriber Line).
Out_1 1
In_n_1 2
In_p_1 3
V- 4
1
2
ZL40162
8 V+
7 Out_2
6 In_n_2
5 In_p_2
Figure 1 - Functional Block Diagram and Pin Connection
1


ZL40162 데이터시트, 핀배열, 회로
ZL40162
Data Sheet
Application Notes
The ZL40162 is a high speed, high output current, dual operational amplifier with a high slew rate and low
distortion. The device uses conventional voltage feedback for ease of use and more flexibility. These characteristics
make the ZL40162 ideal for applications where driving low impedances of 25 to 100such as xDSL and active
filters.
The figure below shows a typical ADSL application utilising a 1:2 transformer, the feedback path provides a Gain =
+2.
Rf1
Rg
Rf2
12R5
12R5
100R
Figure 2 - A Typical ADSL Application
A class AB output stage allows the ZL40162 to deliver high currents to low impedance loads with low distortion
while consuming low quiescent current.
Note: the high ESD immunity figure of 4kV may mean that in some designs fewer additional EMC protection
components are needed thus reducing total system costs.
The ZL40162 is not limited to ADSL applications and can be used as a general purpose opamp configured with
either inverting or non-inverting feedback. The figure below shows non-inverting feedback arrangement that has
typically been used to obtain the data sheet specifications.
Rf
Rg
Figure 3 - A Non-Inverting Feedback Amplifier Example
2 Zarlink Semiconductor Inc.




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ZL40162 amplifier

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ZL40162

High Output Current High Speed Dual Operational Amplifier - Zarlink Semiconductor Inc