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PDF MC33102 Data sheet ( Hoja de datos )
| Número de pieza | MC33102 | |
| Descripción | DUAL SLEEP-MODE OPERATIONAL AMPLIFIER | |
| Fabricantes | Motorola Semiconductors | |
| Logotipo |  |
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Order this document by MC33102/D
Sleep-Mode™ Two-State,
Micropower Operational
Amplifier
The MC33102 dual operational amplifier is an innovative design concept
employing Sleep–Mode technology. Sleep–Mode amplifiers have two
separate states, a sleepmode and an awakemode. In sleepmode, the
amplifier is active and waiting for an input signal. When a signal is applied
causing the amplifier to source or sink 160 µA (typically) to the load, it will
automatically switch to the awakemode which offers higher slew rate, gain
bandwidth, and drive capability.
• Two States: “Sleepmode” (Micropower) and “Awakemode”
(High Performance)
• Switches from Sleepmode to Awakemode in 4.0 µs when Output Current
Exceeds the Threshold Current (RL = 600 Ω)
• Independent Sleepmode Function for Each Op Amp
• Standard Pinouts – No Additional Pins or Components Required
• Sleepmode State – Can Be Used in the Low Current Idle State as a
Fully Functional Micropower Amplifier
• Automatic Return to Sleepmode when Output Current Drops Below
Threshold
• No Deadband/Crossover Distortion; as Low as 1.0 Hz in the Awakemode
• Drop–in Replacement for Many Other Dual Op Amps
• ESD Clamps on Inputs Increase Reliability without Affecting Device
Operation
Sleep–Mode is a trademark of Motorola, Inc.
TYPICAL SLEEPMODE/AWAKEMODE PERFORMANCE
Characteristic
Sleepmode Awakemode
(Typical)
(Typical)
Unit
Low Current Drain
45 750 µA
Low Input Offset Voltage
0.15 0.15 mV
High Output Current Capability
0.15 50 mA
Low T.C. of Input Offset Voltage
1.0 1.0 µV/°C
High Gain Bandwidth (@ 20 kHz)
0.33 4.6 MHz
High Slew Rate
0.16 1.7 V/µs
Low Noise (@ 1.0 kHz)
MAXIMUM RATINGS
28 9.0 nV/√Hz
Ratings
Symbol
Value
Unit
Supply Voltage (VCC to VEE)
Input Differential Voltage Range
Input Voltage Range
VS
VIDR
VIR
+ 36
(Note 1)
V
V
Output Short Circuit Duration (Note 2)
Maximum Junction Temperature
Storage Temperature
tSC
(Note 2)
sec
TJ
+150
°C
Tstg – 65 to +150
Maximum Power Dissipation
PD
(Note 2)
mW
NOTES: 1. Either or both input voltages should not exceed VCC or VEE.
2. Power dissipation must be considered to ensure maximum junction temperature (TJ)
is not exceeded (refer to Figure 1).
MC33102
DUAL SLEEP–MODE
OPERATIONAL AMPLIFIER
SEMICONDUCTOR
TECHNICAL DATA
D SUFFIX
PLASTIC PACKAGE
CASE 751
(SO–8)
8
1
P SUFFIX
PLASTIC PACKAGE
CASE 626
8
1
PIN CONNECTIONS
Output 1 1
Inputs 1
2
3
VEE 4
1
8 VCC
7 Output 2
6
2
5
Inputs
2
(Dual, Top View)
ORDERING INFORMATION
Device
Operating
Temperature Range
Package
MC33102D
TA = – 40° to +85°C
MC33102P
SO–8
Plastic DIP
MOTOROLA ANALOG IC DEVICE DATA
© Motorola, Inc. 1996
Rev 0
1
1 page  
MC33102
Figure 1. Maximum Power Dissipation
versus Temperature
2500
2000
MC33102P
1500
1000 MC33102D
Figure 2. Distribution of Input Offset Voltage
(MC33102D Package)
50
Percent Sleepmode
Percent Awakemode
40
30
204 Amplifiers tested
from 3 wafer lots.
VCC = +15 V
VEE = –15 V
TA = 25°C
20
500 10
0
–55 –40 –25 0 25 50
85
TA, AMBIENT TEMPERATURE (°C)
125
0
–1.0 –0.8 –0.6 –0.4 –0.2 0 0.2 0.4 0.6 0.8 1.0
VIO, INPUT OFFSET VOLTAGE (mV)
Figure 3. Input Offset Voltage Temperature
Coefficient Distribution (MC33102D Package)
35
Percent Sleepmode
30 Percent Awakemode
25
20
204 Amplifiers tested
from 3 wafer lots.
VCC = +15 V
VEE = –15 V
TA = – 40°C to 85°C
15
10
5.0
0
–5.0 –4.0 –3.0 –2.0 –1.0 0 1.0 2.0 3.0 4.0 5.0
TCVIO, INPUT OFFSET VOLTAGE TEMPERATURE COEFFICIENT (µV/°C)
10.5
9.5
8.5
7.5
6.5
–15
Figure 4. Input Bias Current versus
Common Mode Input Voltage
VCC = +15 V
VEE = –15 V
TA = 25°C
100
90
Sleepmode
Awakemode
80
70
–10 –5.0 0 5.0 10
VCM, COMMON MODE INPUT VOLTAGE (V)
60
15
Figure 5. Input Common Mode Voltage Range
versus Temperature
VCC
VCC–0.5
Sleepmode
VCC–1.0
Awakemode
VEE+1.0
VEE+0.5
VCC = +15 V
VEE = –15 V
∆VIO = 5.0 mV
VEE
–55 –40 –25
0
Awakemode
Sleepmode
25 50
85
TA, AMBIENT TEMPERATURE (°C)
125
Figure 6. Input Bias Current versus Temperature
10.0 100
Sleepmode
8.0 80
Awakemode
6.0 60
4.0
VCC = +15 V
2.0 VEE = –15 V
VCM = 0 V
0 –55 –40 –25 0 25 50
85
TA, AMBIENT TEMPERATURE (°C)
40
20
0
125
MOTOROLA ANALOG IC DEVICE DATA
5
5 Page 
MC33102
Figure 37. Sleepmode Small Signal
Transient Response
RRL =
CL = 0 pF
Figure 38. Awakemode Small Signal
Transient Response
RL = 600 Ω
CL = 0 pF
t, TIME (50 µs/DIV)
t, TIME (50 µs/DIV)
CIRCUIT INFORMATION
The MC33102 was designed primarily for applications
where high performance (which requires higher current drain)
is required only part of the time. The two–state feature of this
op amp enables it to conserve power during idle times, yet be
powered up and ready for an input signal. Possible
applications include laptop computers, automotive, cordless
phones, baby monitors, and battery operated test equipment.
Although most applications will require low power
consumption, this device can be used in any application
where better efficiency and higher performance is needed.
The Sleep–Mode™ amplifier has two states; a sleepmode
and an awakemode. In the sleepmode state, the amplifier is
active and functions as a typical micropower op amp. When a
signal is applied to the amplifier causing it to source or sink
sufficient current (see Figure 13), the amplifier will
automatically switch to the awakemode. See Figures 20 and
21 for transition times with 600 Ω and 10 kΩ loads.
The awakemode uses higher drain current to provide a
high slew rate, gain bandwidth, and output current capability.
In the awakemode, this amplifier can drive 27 Vpp into a
600 Ω load with VS = ±15 V.
An internal delay circuit is used to prevent the amplifier
from returning to the sleepmode at every zero crossing. This
delay circuit also eliminates the crossover distortion
commonly found in micropower amplifiers. This amplifier can
process frequencies as low as 1.0 Hz without the amplifier
returning to sleepmode, depending on the load.
The first stage PNP differential amplifier provides low noise
performance in both the sleep and awake modes, and an all
NPN output stage provides symmetrical source and sink AC
frequency response.
APPLICATIONS INFORMATION
The MC33102 will begin to function at power supply
voltages as low as VS = ±1.0 V at room temperature. (At this
voltage, the output voltage swing will be limited to a few
hundred millivolts.) The input voltages must range between
VCC and VEE supply voltages as shown in the maximum
rating table. Specifically, allowing the input to go more
negative than 0.3 V below VEE may cause product
damage. Also, exceeding the input common mode voltage
range on either input may cause phase reversal, even if the
inputs are between VCC and VEE.
When power is initially applied, the part may start to
operate in the awakemode. This is because of the currents
generated due to charging of internal capacitors. When this
occurs and the sleepmode state is desired, the user will have
to wait approximately 1.5 seconds before the device will
switch back to the sleepmode. To prevent this from occurring,
ramp the power supplies from 1.0 V to full supply. Notice that
the device is more prone to switch into the awakemode when
VEE is adjusted than with a similar change in VCC.
The amplifier is designed to switch from sleepmode to
awakemode whenever the output current exceeds a preset
current threshold (ITH) of approximately 160 µA. As a result,
the output switching threshold voltage (VST) is controlled by
the output loading resistance (RL). This loading can be a load
resistor, feedback resistors, or both. Then:
VST = (160 µA) × RL
Large valued load resistors require a large output voltage
to switch, but reduce unwanted transitions to the
awakemode. For instance, in cases where the amplifier is
connected with a large closed loop gain (ACL), the input offset
voltage (VIO) is multiplied by the gain at the output and could
produce an output voltage exceeding VST with no input
signal applied.
Small values of RL allow rapid transition to the awakemode
because most of the transition time is consumed slewing in
the sleepmode until VST is reached (see Figures 20, 21). The
output switching threshold voltage VST is higher for larger
values of RL, requiring the amplifier to slew longer in the
slower sleepmode state before switching to the awakemode.
MOTOROLA ANALOG IC DEVICE DATA
11
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet MC33102.PDF ] | |
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