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PDF TSV914A Data sheet ( Hoja de datos )
| Número de pieza | TSV914A | |
| Descripción | rail-to-rail input/output 8 MHz operational amplifiers | |
| Fabricantes | STMicroelectronics | |
| Logotipo |  |
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TSV91x, TSV91xA
Single, dual and quad
rail-to-rail input/output 8 MHz operational amplifiers
Features
■ Rail-to-rail input and output
■ Wide bandwidth
■ Low power consumption: 820 µA typ
■ Unity gain stability
■ High output current: 35 mA
■ Operating from 2.5 V to 5.5 V
■ Low input bias current, 1 pA typ
■ Low input offset voltage: 1.5 mV max (A grade)
■ ESD internal protection ≥ 5 kV
■ Latch-up immunity
Applications
■ Battery-powered applications
■ Portable devices
■ Signal conditioning
■ Active filtering
■ Medical instrumentation
■ Automotive applications
Description
The TSV91x operational amplifiers offer low
voltage operation and rail-to-rail input and output,
as well as an excellent speed/power consumption
ratio, providing an 8 MHz gain-bandwidth product
while consuming only 1.1 mA maximum at 5 V.
The op-amps are unity gain stable and feature an
ultra-low input bias current.
The devices are ideal for sensor interfaces,
battery-supplied and portable applications, as
well as active filtering.
Pin connections (top view)
SOT23-5
Out 1
VCC- 2
In+ 3
5 VCC+
4 In-
TSV911ILT
Out 1
VCC+ 2
In+ 3
5 VCC-
4 In-
TSV911RILT
SO-8 (single)
N.C. 1
In- 2
In+ 3
VCC- 4
_
+
8 N.C.
7 VCC+
6 Out
5 N.C.
MiniSO-8, SO-8 (dual)
Out1 1
In1- 2
In1+ 3
VCC- 4
_
+
8 VCC+
7 Out2
_ 6 In2-
+ 5 In2+
SO-14, TSSOP14
Out1 1
In1- 2
In1+ 3
VCC+ 4
In2+ 5
In2- 6
Out2 7
_
+
+
_
14 Out4
_ 13 In4-
+ 12 In4+
11 VCC-
+ 10 In3+
_ 9 In3-
8 Out3
Table 1. Device summary
Reference Single
Dual
TSV91x
TSV911
TSV912
TSV91xA TSV911A TSV912A
Quad
TSV914
TSV914A
June 2010
Doc ID 12584 Rev 7
www.bdtic.com/ST
1/20
www.st.com
20
1 page  
TSV91x
Electrical characteristics
Table 4.
Symbol
Electrical characteristics at VCC+ = +2.5 V with VCC- = 0 V, Vicm = VCC/2, RL connected
to VCC/2, full temperature range (unless otherwise specified)(1) (continued)
Parameter
Conditions
Min. Typ. Max. Unit
en Equivalent input noise voltage f= 10kHz, Top = 25°C
THD+en Total harmonic distortion
G=1, f=1kHz, RL=2kΩ, Bw= 22kHz,
Top =25°C, Vicm=(VCC+1)/2,
Vout=1.1Vpp
21
0.001
---n---V-----
Hz
%
1. All parameter limits at temperatures other than 25°C are guaranteed by correlation.
2. Guaranteed by design.
Table 5.
Symbol
Electrical characteristics at VCC+ = +3.3 V with VCC- = 0 V, Vicm = VCC/2, RL connected
to VCC/2, full temperature range (unless otherwise specified)(1)
Parameter
Conditions
Min. Typ. Max. Unit
DC performance
Offset voltage
TSV91x
Vio
TSV91xA
Top = 25°C
Tmin < Top < Tmax
Top = 25°C
Tmin < Top < Tmax
DVio Input offset voltage drift
Iio Input offset current(2)
Top = 25°C
Tmin < Top < Tmax
Iib Input bias current(2)
Top = 25°C
Tmin < Top < Tmax
CMR
Common mode rejection ratio 0V to 3.3V, Vout = 1.65V
20 log (ΔVic/ΔVio)
Tmin < Top < Tmax
Avd Large signal voltage gain
RL=10kΩ, Vout= 0.5V to 2.8V, T=25°C
Tmin < Top < Tmax
VCC-VOH High level output voltage
RL = 10kΩ
Tmin < Top < Tmax
RL = 600Ω
Tmin < Top < Tmax
VOL Low level output voltage
RL = 10kΩ
Tmin < Top < Tmax
RL = 600Ω
Tmin < Top < Tmax
Isink
Iout
Isource
Vo = 3.3V, Top = 25°C
Tmin < Top < Tmax
Vo = 0V, Top = 25°C
Tmin < Top < Tmax
ICC
Supply current (per operator)
No load, Vout=VCC/2
Tmin < Top < Tmax
AC performance
GBP Gain bandwidth product
RL= 2kΩ, CL= 100pF, f = 100kHz,
Top = 25°C
60
55
80
75
18
16
18
16
0.1 4.5
7.5
1.5
3
mV
5 μV/°C
1
10
100
pA
1
10
100
pA
78 dB
90 dB
15 40
45
40
150
mV
150
15 40
45
40
150
mV
150
32
mA
35
0.8 1.1
1.1
mA
8 MHz
Doc ID 12584 Rev 7
www.bdtic.com/ST
5/20
5 Page 
TSV91x
3 Application information
Application information
3.1 Driving resistive and capacitive loads
These products are low-voltage, low-power operational amplifiers optimized to drive rather
large resistive loads above 2 kΩ.
In a follower configuration, these operational amplifiers can drive capacitive loads up to
100 pF with no oscillations. When driving larger capacitive loads, adding a small in-series
resistor at the output can improve the stability of the device (Figure 18 shows the
recommended in-series resistor values). Once the in-series resistor value has been
selected, the stability of the circuit should be tested on bench and simulated with the
simulation model.
Figure 18. In-series resistor vs. capacitive load
3.2 PCB layouts
For correct operation, it is advised to add 10 nF decoupling capacitors as close as possible
to the power supply pins.
3.3 Macromodel
An accurate macromodel of the TSV91x is available on STMicroelectronics’ web site at
www.st.com. This model is a trade-off between accuracy and complexity (that is, time
simulation) of the TSV91x operational amplifiers. It emulates the nominal performances of a
typical device within the specified operating conditions mentioned in the datasheet. It helps
to validate a design approach and to select the right operational amplifier, but it does not
replace on-board measurements.
Doc ID 12584 Rev 7
www.bdtic.com/ST
11/20
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet TSV914A.PDF ] | |
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