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PDF NCV2002 Data sheet ( Hoja de datos )
| Número de pieza | NCV2002 | |
| Descripción | Sub-One Volt Rail-to-Rail Operational Amplifier | |
| Fabricantes | ON Semiconductor | |
| Logotipo |  |
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NCS2002, NCV2002
Sub-One Volt Rail-to-Rail
Operational Amplifier with
Enable Feature
The NCS2002 is an industry first sub−one volt operational amplifier
that features a rail−to−rail common mode input voltage range, along
with rail−to−rail output drive capability. This amplifier is guaranteed
to be fully operational down to 0.9 V, providing an ideal solution for
powering applications from a single cell Nickel Cadmium (NiCd) or
Nickel Metal Hydride (NiMH) battery. Additional features include no
output phase reversal with overdriven inputs, trimmed input offset
voltage of 0.5 mV, extremely low input bias current of 40 pA, and a
unity gain bandwidth of 1.1 MHz at 5.0 V.
The NCS2002 also has an active high enable pin that allows external
shutdown of the device. In the standby mode, the supply current is
typically 1.9 mA at 1.0 V. Because of its small size and enable feature,
this amplifier represents the ideal solution for small portable
electronic applications. The NCS2002 is available in the space saving
SOT23−6 (TSOP−6) package with two industry standard pinouts.
Features
• 0.9 V Guaranteed Operation
• Standby Mode: ID = 1.9 mA at 1.0 V, Typical
• Rail−to−Rail Common Mode Input Voltage Range
• Rail−to−Rail Output Drive Capability
• No Output Phase Reversal for Over−Driven Input Signals
• 0.5 mV Trimmed Input Offset
• 10 pA Input Bias Current
• 1.1 MHz Unity Gain Bandwidth at $2.5 V, 1.0 MHz at $0.5 V
• Tiny SOT23−6 (TSOP−6) Package
• NCV Parts − AEC−Q100 Qualified and PPAP Capable
• These Devices are Pb−Free and are RoHS Compliant
Typical Applications
• Single Cell NiCd / NiMH Battery Powered Applications
• Cellular Telephones
• Pagers
• Personal Digital Assistants
• Electronic Games
• Digital Cameras
• Camcorders
• Hand Held Instruments
Rail to Rail Input
Rail to Rail Output
0.8 V
to
7.0 V
+
-
This device contains 81 active transistors.
Figure 1. Typical Application
© Semiconductor Components Industries, LLC, 2013
June, 2013 − Rev. 7
1
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1
TSSOP−6
SN SUFFIX
CASE 318G
MARKING DIAGRAM
AAxAYW G
G
1
AA = Device Code
x = Marking Defined on Page 15 in
Ordering Information
A = Assembly Location
Y = Year
W = Work Week
G = Pb−Free Package
(Note: Microdot may be in either location)
PIN CONNECTIONS
VOUT 1
6 VEE
VCC 2
Non−Inverting
Input
3
+−
5 Enable
4
Inverting
Input
Style 1 Pinout (SN1T1)
VOUT 1
6 VCC
VEE 2
Non−Inverting
Input
3
+−
5 Enable
4
Inverting
Input
Style 2 Pinout (SN2T1)
ORDERING AND MARKING INFORMATION
See detailed ordering, marking, and shipping information in
the package dimensions section on page 15 of this data sheet.
Publication Order Number:
NCS2002/D
1 page  
NCS2002, NCV2002
0
−200
−400
−600
High State Output
Sourcing Current
VS = ±2.5 V
RL to GND
TA = 25°C
VCC
600
400 Low State Output
200 Sinking Current
0
100
1.0 k
10 k
100 k
VEE
1.0 M
RL, Load Resistance (W)
Figure 2. Output Saturation Voltage versus
Load Resistance
0
−0.1
−0.2
−0.3
−0.4
−0.5
VS = $2.5 V
RL to GND
TA = 25°C
High State Output
Sourcing Current
VCC
0.4
0.3 Low State Output
0.2 Sinking Current
0.1 VEE
0
0 4.0 8.0 12 16 20
IL, Load Current (mA)
Figure 3. Output Saturation Voltage versus
Load Current
10,000
1000
100
10
1.0
0
0
100
80 Gain
60 Phase
VS = $2.5 V
RL = 100 k
TA = 25°C
Amp = 0.8 mV
0
20
60
40 100
VS = ±2.5 V
RL = ∞
CL = 0
AV = 1.0
20
0
140
180
25 50 75 100
TA, Ambient Temperature (°C)
Figure 4. Input Bias Current versus
Temperature
125 1.0 10 100 1.0 k 10 k 100 k 1.0 M 10 M
f, Frequency (Hz)
Figure 5. Gain and Phase versus Frequency
VS = $2.5 V
RL = 10 k
CL = 10 pF
AV = 1.0
TA = 25°C
VS = $2.5 V
RL = 10 k
CL = 10 pF
AV = 1.0
TA = 25°C
t, Time (500 ns/Div)
Figure 6. Transient Response
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5
t, Time (1.0 ms/Div)
Figure 7. Slew Rate
5 Page 
NCS2002, NCV2002
Output
The output stage consists of complementary P and N
channel devices connected to provide rail−to−rail output
drive. With a 2.0 k load, the output can swing within 50 mV
of either rail. It is also capable of supplying over 75 mA
when powered from 5.0 V and 1.0 mA when powered from
0.9 V.
When connected as a unity gain follower, the NCS2002
can directly drive capacitive loads in excess of 820 pF at
room temperature without oscillating but with significantly
reduced phase margin. The unity gain follower
configuration exhibits the highest bandwidth and is most
prone to oscillations when driving a high value capacitive
load. The capacitive load in combination with the
amplifier’s output impedance, creates a phase lag that can
result in an under−damped pulse response or a continuous
oscillation. Figure 35 shows the effect of driving a large
capacitive load in a voltage follower type of setup. When
driving capacitive loads exceeding 820 pF, it is
recommended to place a low value isolation resistor
between the output of the op amp and the load, as shown in
Figure 34. The series resistor isolates the capacitive load
from the output and enhances the phase margin. Refer to
Figure 36. Larger values of R will result in a cleaner output
waveform but excessively large values will degrade the
large signal rise and fall time and reduce the output
amplitude. Depending upon the capacitor characteristics,
the isolation resistor value will typically be between 50 to
500 W. The output drive capability for resistive and
capacitive loads is shown in Figures 2, 3, and 23.
Input
+
-
R Output
CL
Isolation resistor R = 50 to 500
Figure 34. Capacitance Load Isolation
Note that the lowest phase margin is observed at cold
temperature and low supply voltage.
Enable Pin
The enable pin allows the user to externally control the
device. if the enable pin is pulled below the input disable
threshold voltage (VEN < 45% VCC), the amplifier is
disabled. Once the enable pin is taken above the threshold
voltage (VEN = 60% VCC), the amplifier will turn on. In the
event the enable pin is not connected, the amplifier will
remain on by default
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| Páginas | Total 16 Páginas | |
| PDF Descargar | [ Datasheet NCV2002.PDF ] | |
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