Micropower with high merit factor CMOS operational amplifiers
Features
TSV6290, TSV6290A, TSV6291, TSV6291A
■ Low supply voltage: 1.5 V – 5.5 V
■ Rail-to-rail input and output
■ Low input offset voltage: 800 µV max
(A version)
■ Low power consumption: 29 µA typical
■ Gain bandwidth product: 1.3 MHz typical
■ Stable when used in gain configuration
■ Micropackages: SC70-5/6, SOT23-5/6
■ Low input bias current: 1 pA typical
■ Extended temperature range: -40 to +125°C
■ 4 kV human body model
Applications
■ Battery-powered applications
■ Portable devices
■ Signal conditioning
■ Active filtering
■ Medical instrumentation
Description
The TSV6290 and the TSV6291 are single
operational amplifiers with a high bandwidth while
consuming only 29 µA. They must be used in a
gain configuration (G<-3, G>+4).
V
In+
In+
1
1
+
+
_
V
V
CC-
CC-
In-
In-
_
2
2
3
3
V
5
5
CC+
CC+
4
4
Out
Out
TSV6291ICT/ILT
SC70-5/SOT23-5
In+
1
+
V
CC-
In-
_
2
3
6
5
4
V
CC+
SHDN
Out
TSV6290ICT/ILT
SC70-6/SOT23-6
The TSV6290 comes with a shutdown function.
The TSV6290 and TSV6291 present a high
tolerance to ESD, sustaining 4 kV for the human
body model.
Additionally, the TSV6290 and TSV6291 are
offered in SC70-5/6 and SOT23-5/6
micropackages, with extended temperature
ranges from -40° C to +125° C.
All these features make the TSV629x ideal for
sensor interfaces, battery-supplied and portable
applications, as well as active filtering.
With a very low input bias current and low offset
voltage (800 µV maximum for the A version), the
TSV629x family of devices is ideal for applications
requiring precision. The devices can operate at a
power supply ranging from 1.5 to 5.5 V, and
therefore suit battery-powered devices, extending
battery life.
March 2010Doc ID 17117 Rev 11/23
www.st.com
23
Page 2
ContentsTSV6290, TSV6290A, TSV6291, TSV6291A
Contents
1Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 3
TSV6290, TSV6290A, TSV6291, TSV6291AAbsolute maximum ratings and operating conditions
1 Absolute maximum ratings and operating conditions
Table 1.Absolute maximum ratings (AMR)
SymbolParameterValueUnit
(3)
(4)
(1)
(3)
(8)
(2)
(7)
(9)
(5)(6)
V
V
CC-
CC-
6V
±V
CC
-0.2 to V
+0.2V
CC+
V
10mA
-0.2 to V
+0.2V
CC+
205
250
°C/W
240
232
4kV
300V
1.5kV
V
CC
V
V
I
in
Supply voltage
Differential input voltage
id
Input voltage
in
Input current
SHDNShutdown voltage
T
stg
Storage temperature-65 to +150°C
Thermal resistance junction to ambient
SC70-5
R
thja
SOT23-5
SOT23-6
SC70-6
T
Maximum junction temperature150°C
j
HBM: human body model
ESD
MM: machine model
CDM: charged device model
Latch-up immunity200mA
1. All voltage values, except differential voltage, are with respect to network ground terminal.
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
3. Vcc-Vin must not exceed 6 V, Vin must not exceed 6 V.
4. Input current must be limited by a resistor in series with the inputs.
5. Short-circuits can cause excessive heating and destructive dissipation.
are typical values.
6. R
th
7. Human body model: 100 pF discharged through a 1.5 kΩ resistor between two pins of the device, done for
all couples of pin combinations with other pins floating.
8. Machine mode: a 200 pF capacitor is charged to the specified voltage, then discharged directly between
two pins of the device with no external series resistor (internal resistor < 5 Ω), done for all couples of pin
combinations with other pins floating.
9. Charged device model: all pins plus package are charged together to the specified voltage and then
discharged directly to the ground.
The TSV6290 and TSV6291 can operate from 1.5 to 5.5 V. Their parameters are fully
specified for 1.8, 3.3 and 5 V power supplies. However, the parameters are very stable in the
full V
1.5 V. Additionally, the main specifications are guaranteed in extended temperature ranges
from -40° C to +125° C.
3.2 Rail-to-rail input
The TSV6290 and TSV6291 are built with two complementary PMOS and NMOS input
differential pairs. The devices have a rail-to-rail input, and the input common-mode range is
extended from V
V
degraded (as shown in Figure 17 and Figure 18 for V
Figure 17. Input offset voltage vs. input
common mode at V
range and several characterization curves show the TSV629x characteristics at
CC
-0.1 V to V
-0.7 V. In the transition region, the performance of CMR, SVR, Vio and THD is slightly
CC+
CC-
+0.1 V. The transition between the two pairs appears at
CC+
vs. V
io
icm
).
Figure 18. Input offset voltage vs. input
CC
= 1.5 V
common mode at V
CC
= 5 V
The devices are guaranteed without phase reversal.
3.3 Rail-to-rail output
The operational amplifiers’ output levels can go close to the rails: 35 mV maximum above
and below the rail when connected to a 10 kΩ resistive load to V
3.4 Shutdown function (TSV6290)
The operational amplifier is enabled when the SHDN pin is pulled high. To disable the
amplifier, the SHDN
output is in a high impedance state. The SHDN
V
or V
CC+
12/23Doc ID 17117 Rev 1
CC-
.
must be pulled down to V
CC-
/2.
CC
. When in shutdown mode, the amplifier’s
pin must never be left floating, but tied to
Page 13
TSV6290, TSV6290A, TSV6291, TSV6291AApplication information
The turn-on and turn-off times are calculated for an output variation of ±200 mV (Figure 19
and Figure 20 show the test configurations).
These devices use an innovative approach to reduce the spread of the main DC and AC
parameters. An internal adjustment achieves a very narrow spread of the current
consumption (29 µA typical, min/max at ±17%). Parameters linked to the current
consumption value, such as GBP, SR and A
, benefit from this narrow dispersion.
Vd
3.6 Driving resistive and capacitive loads
These products are micropower, low-voltage operational amplifiers optimized to drive rather
large resistive loads, above 5 kΩ. For lower resistive loads, the THD level may significantly
increase.
The amplifiers have a relatively low internal compensation capacitor, making them very fast
while consuming very little. They are ideal when used in a non-inverting configuration or in
an inverting configuration in the following conditions.
●IGainI ≥3in an inverting configuration (C
(CL = 100 pF, RL = 100 kΩ)
●Gain ≥ +4 in a non-inverting configuration (C
(CL = 100 pF, RL= 100 kΩ)
As these operational amplifiers are not unity gain stable, for a low closed-loop gain it is
recommended to use the TSV62x (29 µA, 420 kHz) or TSV63x (60 µA, 880 kHz) which are
unity gain stable.
Table 8.Related products
= 20 pF, RL = 100 kΩ) or IgainI ≥10
L
= 20 pF, RL = 100 kΩ) or gain ≥ +11
L
Part #Icc (µA) at 5 VGBP (MHz)SR (V/µs)
TSV620-1290.420.141
TSV6290-1291.30.5+11
TSV630-1600.880.341
TSV6390-1602.41.1+11
3.7 PCB layouts
For correct operation, it is advised to add 10 nF decoupling capacitors as close as possible
to the power supply pins.
3.8 Macromodel
An accurate macromodel of the TSV6290 and TSV6291 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 TSV629x 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.
Minimum gain for
stability
(C
= 100 pF)
Load
14/23Doc ID 17117 Rev 1
Page 15
TSV6290, TSV6290A, TSV6291, TSV6291APackage information
4 Package information
In order to meet environmental requirements, ST offers these devices in different grades of
ECOPACK
specifications, grade definitions and product status are available at: www.st.com.
ECOPACK
®
packages, depending on their level of environmental compliance. ECOPACK®
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