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TLV2472CD

Part # TLV2472CD
Description DUAL OPAMP LOW POWER RAIL TORAIL I/O - Rail/Tube
Category IC
Availability In Stock
Qty 75
Qty Price
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16 - 31 $1.07755
32 - 47 $1.01598
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64 + $0.84152
Manufacturer Available Qty
Texas Instruments
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Technical Document


DISCLAIMER: The information provided herein is solely for informational purposes. Customers must be aware of the suitability of this product for their application, and consider that variable factors such as Manufacturer, Product Category, Date Codes, Pictures and Descriptions may differ from available inventory.

TLV2470, TLV2471, TLV2472, TLV2473, TLV2474, TLV2475, TLV247xA
FAMILY OF 600−µA/Ch 2.8−MHz RAIL−TO−RAIL INPUT/OUTPUT
HIGH−DRIVE OPERATIONAL AMPLIFIERS WITH SHUTDOWN
SLOS232C - JUNE 1999 - REVISED AUGUST 2003
13
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 26
CROSSTALK
vs
FREQUENCY
f - Frequency - Hz
10 100 10 k 100 k
Crosstalk - dB
-100
-120
-140
-60
-80
-40
-160
1 k
-20
0
V
DD
= 3V & 5V
A
V
= 1
R
L
= 600
V
I(PP)
=2V
All Channels
Figure 27
10 1k 10k100
0.001
1
0.01
0.1
100k
TOTAL HARMONIC
DISTORTION PLUS NOISE
vs
FREQUENCY
THD+N-Total Harmonic Distortion + Noise
f - Frequency - Hz
A
V
= 10
A
V
= 1
V
DD
= 3 V
R
L
= 10 k
V
0
= 2 V
PP
T
A
= 25°C
A
V
= 100
Figure 28
10 1k 10k100
0.001
1
0.01
0.1
100k
V
DD
= 5 V
R
L
= 10 k
V
0
= 4 V
PP
T
A
= 25°C
TOTAL HARMONIC
DISTORTION PLUS NOISE
vs
FREQUENCY
THD+N-Total Harmonic Distortion + Noise
f - Frequency - Hz
A
V
= 100
A
V
= 10
A
V
= 1
Figure 29
0 12345678910
t - Time - µs
- Output Voltage
LARGE SIGNAL FOLLOWER
PULSE RESPONSE
vs
TIME
V
O
V
DD
= 3 V
R
L
= 10 k
C
L
= 8 pF
f = 85 kHz
T
A
= 25°C
V
I
(2 V/DIV)
V
O
(1 V/DIV)
Figure 30
t - Time - µs
LARGE SIGNAL FOLLOWER
PULSE RESPONSE
vs
TIME
0 123 45 678910
V
DD
= 5 V
R
L
= 10 k
C
L
= 8 pF
f = 85 kHz
T
A
= 25°C
V
I
(2 V/DIV)
V
O
(1 V/DIV)
- Output Voltage V
O
Figure 31
t - Time - µs
SMALL SIGNAL FOLLOWER
PULSE RESPONSE
vs
TIME
0 100 200 300 400 500
V
DD
= 3 V
R
L
= 10 k
C
L
= 8 pF
f = 1 MHz
T
A
= 25°C
V
I
(50 mV/DIV)
V
O
(50 mV/DIV)
- Output Voltage V
O
Figure 32
t - Time - µs
SMALL SIGNAL FOLLOWER
PULSE RESPONSE
vs
TIME
0 100 200 300 400 500
V
DD
= 5 V
R
L
= 10 k
C
L
= 8 pF
f = 1 MHz
T
A
= 25°C
V
I
(50 mV/DIV)
V
O
(50 mV/DIV)
- Output Voltage V
O
Figure 33
V
DD
= 3 V
C
L
= 8 pF
T
A
= 25°C
02468101214
t - Time - µs
16
SHUTDOWN (ON AND OFF)
PULSE RESPONSE
vs
TIME
V
SHDN
(2 V/DIV)
V
O
(500 mV/DIV)
R
L
= 600
R
L
= 10 k
- Output Voltage V
O
Figure 34
SHUTDOWN (ON AND OFF)
PULSE RESPONSE
vs
TIME
02 4 6810121416
t - Time - µs
R
L
= 600
R
L
= 10 k
18
V
DD
= 5 V
C
L
= 8 pF
T
A
= 25°C
V
SHDN
(2 V/DIV)
V
O
(1 V/DIV)
- Output Voltage V
O
TLV2470, TLV2471, TLV2472, TLV2473, TLV2474, TLV2475, TLV247xA
FAMILY OF 600−µA/Ch 2.8−MHz RAIL−TO−RAIL INPUT/OUTPUT
HIGH−DRIVE OPERATIONAL AMPLIFIERS WITH SHUTDOWN
SLOS232C - JUNE 1999 - REVISED AUGUST 2003
14
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
TYPICAL CHARACTERISTICS
Figure 35
R
L
=10 k
SHUTDOWN FORWARD
ISOLATION
vs
FREQUENCY
f - Frequency - Hz
100 1k 10k 100k
60
40
0
20
80
100
1M 10M
R
L
=600
Shutdown Forward Isolation - dB
120
V
DD
= 3 & 5 V
C
L
=0 pF
A
V
= 1
V
I(PP)
=0.1, 1.5, 3 V
Figure 36
R
L
=10 k
SHUTDOWN REVERSE ISOLATION
vs
FREQUENCY
f - Frequency - Hz
100 1k 10k 100k
60
40
0
20
80
100
1M 10M
R
L
=600
Shutdown Forward Isolation - dB
120
V
DD
= 3 & 5 V
R
L
=10 k
C
L
=0 pF
A
V
= 1
V
IN
=0.1, 1.5, 3 Vp-p
Figure 37
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
1.8
2.0
2.5 3.0 3.5 4.0 4.5 5.0 5.5 6.0
T
A
=125
T
A
=85
SHUTDOWN SUPPLY CURRENT
vs
SUPPLY VOLTAGE
V
DD
- Supply Voltage - V
- Shutdown Supply Current -
I
DD(SHDN)
Shutdown On
R
L
=OPEN
V
I
=V
DD/2
µA
T
A
=25
T
A
=-40
Figure 38
0.0
0.2
0.4
0.6
0.8
1.0
1.2
1.4
1.6
-55 -35 -15 5 25 45 65 85 105 125
SHUTDOWN SUPPLY CURRENT
vs
FREE-AIR TEMPERATURE
T
A
- Free-Air Temperature - °C
SD MODE Channel 1 & 2
A
V
= 1
R
L
= OPEN
V
IN
=V
DD/2
DD
I Shutdown Supply Current --Aµ
V
DD
=3 V
V
DD
=5 V
Figure 39
-1
-2
-4
-3
2
1
3
4
Shutdown Pulse
I
DD
R
L
=10 k
SHUTDOWN PULSE CURRENT
vs
TIME
t - Time - µs
1.25
0.75
-0.5
0.5
1.5
1.75
2
V
DD
= 3 V
C
L
=8 pF
T
A
=25°C
1
0.25
0
-0.25
0
-8
-7
-5
-6
0 4 8 121620242830
I
DD
- Supply Current - mA
I
DD
R
L
=600
Shutdown Pulse - V
Figure 40
-2
-4
2
6
Shutdown Pulse - V
Shutdown Pulse
I
DD
R
L
=10 k
SHUTDOWN PULSE CURRENT
vs
TIME
t - Time - µs
1.25
0.75
-0.5
0.5
1.5
1.75
2
V
DD
= 5 V
C
L
=8 pF
T
A
=25°C
1
0.25
0
-0.25
0
-8
-6
04 8 3024201612
I
DD
- Supply Current - mA
I
DD
R
L
=600
4
-10
-12
28
TLV2470, TLV2471, TLV2472, TLV2473, TLV2474, TLV2475, TLV247xA
FAMILY OF 600−µA/Ch 2.8−MHz RAIL−TO−RAIL INPUT/OUTPUT
HIGH−DRIVE OPERATIONAL AMPLIFIERS WITH SHUTDOWN
SLOS232C - JUNE 1999 - REVISED AUGUST 2003
15
POST OFFICE BOX 655303 DALLAS, TEXAS 75265
PARAMETER MEASUREMENT INFORMATION
_
+
R
null
R
L
C
L
Figure 41
APPLICATION INFORMATION
driving a capacitive load
When the amplifier is configured in this manner, capacitive loading directly on the output will decrease the
devices phase margin leading to high frequency ringing or oscillations. Therefore, for capacitive loads of greater
than 10 pF, it is recommended that a resistor be placed in series (R
NULL
) with the output of the amplifier, as
shown in Figure 42. A minimum value of 20 should work well for most applications.
C
LOAD
R
F
Input
Output
R
G
R
NULL
_
+
Figure 42. Driving a Capacitive Load
offset voltage
The output offset voltage, (V
OO
) is the sum of the input offset voltage (V
IO
) and both input bias currents (I
IB
) times
the corresponding gains. The following schematic and formula can be used to calculate the output offset
voltage:
V
OO
+ V
IO
ǒ
1 ) ǒ
R
F
R
G
Ǔ
Ǔ
" I
IB)
R
S
ǒ
1 ) ǒ
R
F
R
G
Ǔ
Ǔ
" I
IB
R
F
+
-
V
I
+
R
G
R
S
R
F
I
IB-
V
O
I
IB+
Figure 43. Output Offset Voltage Model
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