ZL40162
High Output Current
High Speed Dual Operational Amplifier
Data Sheet
Features
•
High Output Drive
• 18.8 Vpp differential output voltage, RL = 50Ω
• 9.4 Vpp single-ended output voltage, RL =
25Ω
High Output Current
• ± 200mA @ Vo = 9.4 Vpp, Vs = 12V
Low Distortion
• 83dB SFDR (Spurious Free Dynamic Range)
@ 100KHz, Vo = 2Vpp, RL = 25Ω
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
Ordering Information
ZL40162/DCA
ZL40162/DCB
(tubes) 8 lead SOIC
(tape and reel) 8 lead SOIC
April 2003
•
•
-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 25Ω
load, fully supporting the peak upstream power levels
for upstream full-rate ADSL (Asymmetrical Digital
Subscriber Line).
•
•
•
•
•
Applications
•
•
•
ADSL PCI modem cards
xDSL external modem
Line Driver
Out_1
1
8 V+
7 Out_2
In_n_1 2
1
In_p_1 3
6 In_n_2
2
V- 4
ZL40162
5 In_p_2
Figure 1 - Functional Block Diagram and Pin Connection
1
ZL40162
Application Notes
Data Sheet
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 100Ω such 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.
12R5
Rf1
Rg
Rf2
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.
Data Sheet
ZL40162
Absolute Maximum Ratings -
(See Note 1)
Parameter
Vin Differential
Output Short Circuit Protection
Symbol
V
IN
V
OS/C
Min
Max
±1.2
See Apps Note
in this data
sheet
±13.2
(V-) -0.8
(V+) +0.8
±5.5
4
-55
+/-100mA for
100ms
20% pulse for
100ms
(Note 3)
+150
(Note 4)
(Note 5)
V
V
V
kV
°C
Units
V
Supply Voltage
Voltage at Input Pins
Voltage at Output Pins
ESD Protection (HBM Human Body Model)
(See Note 2)
Storage Temperature
Latch-up test
Supply transient test
Note 1:
Note 2:
Note 3:
Note 4:
Note 5:
V+, V-
V
(+IN)
, V
(-IN)
V
O
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate
conditions for which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed
specifications and the test conditions, see the Electrical Characteristics.
Human body model, 1.5k
Ω
in series with 100pF. Machine model, 200
Ω
in series with 100pF.
1.25kV between the pairs of +INA, -INA and +INB, -INB pins only. 4kV between supply pins, OUTA or OUTB pins and any
input pin.
+/-100mA applied to input and output pins to force the device to go into "latch-up". The device passes this test to JEDEC spec
17.
Positive and Negative supply transient testing increases the supplies by 20% for 100ms.
Operating Ratings -
(See Note 1)
Parameter
Supply Voltage
Junction Temperature Range
Junction to Ambient Resistance
Rth(j-a)
Symbol
V+, V-
Min
±
2.5
-40
150
Max
±6.5
150
Units
V
°C
°C
4 layer FR5
board
°C
4 layer FR5
board
Junction to Case Resistance
Rth(j-c)
60
Note 1:
Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate
conditions for which the device is intended to be functional, but specific performance is not guaranteed. For guaranteed
specifications and the test conditions, see the Electrical Characteristics.
Zarlink Semiconductor Inc.
3
ZL40162
otherwise specified
Symbol
Data Sheet
Electrical Characteristics -
TA = 25°C, G = +2, Vs = ± 6V, Rf = Rg = 510Ω, RL = 100Ω / 2pF; Unless
Min
(Note 1)
Typ
(Note 2)
Max
(Note 3)
Test
Type
Parameter
Conditions
Units
Dynamic Performance
-3dB Bandwidth
-0.1dB Bandwidth
Slew Rate
Rise and Fall Time
Rise and Fall Time
Differential Gain
Differential Phase
2
nd
Harmonic
Distortion
Vo = 200mVp-p
Vo = 200mVp-p
4V Step O/P, 10-90%
4V Step O/P, 10-90%
200mV Step O/P,
10-90%
NTSC, RL = 150Ω
NTSC, RL = 150Ω
158
17
195
16.4
2.4
0.01
-0.1
MHz
MHz
V/µs
ns
ns
%
deg
C
C
C
C
C
C
C
Distortion and Noise Response
Vo = 8.4Vpp,
f =100KHz,RL= 25Ω/2pF
Vo = 8.4Vpp,
f =1MHz,RL = 100Ω/2pF
Vo = 2Vpp,
f =100kHz,RL= 25Ω/2pF
Vo = 2Vpp,
f =1MHz,RL =100Ω/2pF
3
rd
Harmonic
Distortion
Vo = 8.4Vpp,
f =100KHz,RL=25Ω/2pF
Vo = 8.4Vpp,
f =1MHz,RL =100Ω/2pF
Vo = 2Vpp,
f =100KHz,RL=25Ω/2pF
Vo = 2Vpp,
f =1MHz,RL=100Ω/2pF
MTPR
Multi-Tone Power
Ratio
47.4375 KHz
69 KHz
90.5625 KHz
112.125 KHz
Input Noise Voltage
Input Noise Current
Input Characteristics
Vos
Input Offset Voltage
Tj = -40°C to 150°C
- 4.2
- 0.3
4.2
mV
A
f = 100KHz
f = 100KHz
-65.4
-80.8
-93.1
-85.5
-69.9
-74.8
-82.7
-71.8
-76
-74.5
-72
-70
3.8
2.7
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
nV/√Hz
pA/√Hz
C
C
C
C
C
C
C
C
C
C
C
C
C
C
4
Zarlink Semiconductor Inc.
Data Sheet
Symbol
Ib
Ios
CMVR
CMRR
Parameter
Input Bias Current
Input Offset Current
Common Mode
Voltage Range
Common Mode
Rejection Ratio
Voltage Gain
Conditions
Tj = -40°C to 150°C
Tj = -40°C to 150°C
Tj = -40°C to 150°C
Tj = -40°C to 150°C
-2
- 4.9
70
79
Min
(Note 1)
Typ
(Note 2)
-10
-0.2
Max
(Note 3)
-20
2
4.9
ZL40162
Units
µA
µA
V
dB
Test
Type
A
A
A
A
Transfer Characteristics
Avol
RL = 1k,
Tj = -40°C to 150°C
RL = 25Ω,
Tj = -40°C to 150°C
Output Swing
Output Swing
Isc
Output Current
(Note 3)
Supply
Current / Amp
Power Supply
Rejection Ratio
RL = 25Ω,
Tj = -40°C to 150°C
RL = 1k,
Tj = -40°C to 150°C
Vo = 0,
Tj = -40°C to 150°C
Tj = -40°C to 150°C
Tj = -40°C to 150°C
73
4.7
1.6
- 4.5
-5
570
10
5.5
±
4.7
±
5.1
1000
4.5
5
V
V
mA
V/mV
A
A
A
A
B
Power Supply
Is
PSRR
7
81
9
mA
dB
A
A
Note 1:
Note 2:
Note 3:
The maximum power dissipation is a function of Tj(max),
θ
JA and TA. The maximum allowable power dissipation at any
ambient temperature is PD = (Tj(max) - TA)/
θ
JA. All numbers apply for packages soldered directly onto a PC board.
Typical values represent the most likely parametric norm.
Test Types:
a. 100% tested at 25°C. Over temperature limits are set by characterisation or simulation.
b. Limits set by characterisation or simulation.
c. Typical value only for information.
Zarlink Semiconductor Inc.
5
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