IC OPAMP CHOP R-R 350KHZ 8MSOP

OPA2333AIDGKTG4

Manufacturer Part NumberOPA2333AIDGKTG4
DescriptionIC OPAMP CHOP R-R 350KHZ 8MSOP
ManufacturerTexas Instruments
OPA2333AIDGKTG4 datasheet
 


Specifications of OPA2333AIDGKTG4

Amplifier TypeChopper (Zero-Drift)Number Of Circuits2
Output TypeRail-to-RailSlew Rate0.16 V/µs
Gain Bandwidth Product350kHzCurrent - Input Bias70pA
Voltage - Input Offset2µVCurrent - Supply17µA
Current - Output / Channel5mAVoltage - Supply, Single/dual (±)1.8 V ~ 5.5 V, ±0.9 V ~ 2.75 V
Operating Temperature-40°C ~ 125°CMounting TypeSurface Mount
Package / Case8-MSOP, Micro8™, 8-uMAX, 8-uSOP,Number Of Channels2
Voltage Gain Db130 dBCommon Mode Rejection Ratio (min)106 dB
Input Offset Voltage0.01 mVOperating Supply Voltage3 V, 5 V
Maximum Operating Temperature+ 125 CMounting StyleSMD/SMT
Maximum Dual Supply Voltage+/- 2.75 VMinimum Operating Temperature- 40 C
Lead Free Status / RoHS StatusLead free / RoHS Compliant-3db Bandwidth-
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OPA333
OPA2333
SBOS351C – MARCH 2006 – REVISED MAY 2007
The OPA333 and OPA2333 are unity-gain stable and
free from unexpected output phase reversal. They
use a proprietary auto-calibration technique to
provide low offset voltage and very low drift over time
and temperature. For lowest offset voltage and
precision performance, circuit layout and mechanical
conditions should be optimized. Avoid temperature
gradients
that
create
thermoelectric
effects in the thermocouple junctions formed from
connecting
dissimilar
conductors.
thermally-generated potentials can be made to
cancel by assuring they are equal on both input
terminals. Other layout and design considerations
include:
Use
low
thermoelectric-coefficient
(avoid dissimilar metals).
Thermally
isolate
components
supplies or other heat sources.
Shield op amp and input circuitry from air
currents, such as cooling fans.
Following these guidelines will reduce the likelihood
of junctions being at different temperatures, which
can cause thermoelectric voltages of 0.1μV/ C or
higher, depending on materials used.
OPERATING VOLTAGE
The OPA333 and OPA2333 op amps operate over a
power-supply range of +1.8V to +5.5V ( 0.9V to
2.75V). Supply voltages higher than +7V (absolute
maximum) can permanently damage the device.
Parameters that vary over supply voltage or
temperature are shown in the
Typical Characteristics
section of this data sheet.
8
APPLICATIONS INFORMATION
INPUT VOLTAGE
The OPA333 and OPA2333 input common-mode
voltage range extends 0.1V beyond the supply rails.
The OPA333 is designed to cover the full range
without the troublesome transition region found in
some other rail-to-rail amplifiers.
(Seebeck)
Normally, input bias current is about 70pA; however,
input voltages exceeding the power supplies can
These
cause excessive current to flow into or out of the
input pins. Momentary voltages greater than the
power supply can be tolerated if the input current is
limited
to
accomplished with an input resistor, as shown in
conditions
Figure
18.
from
power
Current-limiting resistor
required if input voltage
exceeds supply rails by
³ 0.5V.
V
IN
Figure 18. Input Current Protection
INTERNAL OFFSET CORRECTION
The OPA333 and OPA2333 op amps use an
auto-calibration technique with a time-continuous
350kHz op amp in the signal path. This amplifier is
zero-corrected
technique. Upon power-up, the amplifier requires
approximately 100μs to achieve specified V
accuracy. This design has no aliasing or flicker
noise.
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10mA.
This
limitation
is
easily
+5V
I
OVERLOAD
10mA max
V
OPA333
OUT
5kW
every
8μs
using
a
proprietary
OS