|
|
PDF OPA2725 Data sheet ( Hoja de datos )
| Número de pieza | OPA2725 | |
| Descripción | (OPA725 - OPA726) 12V CMOS Operational Amplifier | |
| Fabricantes | Burr-Brown Corporation | |
| Logotipo |  |
|
Hay una vista previa y un enlace de descarga de OPA2725 (archivo pdf) en la parte inferior de esta página. Total 20 Páginas | ||
|
No Preview Available !
OPA725, OPA2725
OPA726, OPA2726
SBOS278B − SEPTEMBER 2003 − REVISED JANUARY 2004
Very Low Noise, High-Speed, 12V CMOS
Operational Amplifier
FEATURES
D BANDWIDTH: 20MHz
D SLEW RATE: 30V/µs
D FAST 16-BIT SETTLING TIME
D LOW NOISE: 6nV/√Hz (typ) at 100kHz
D EXCELLENT CMRR, PSRR, and AOL
D RAIL-TO-RAIL OUTPUT
D CM RANGE INCLUDES GND
D THD+N: 0.0003% (typ) at 1kHz
D QUIESCENT CURRENT: 5.5mA/ch (max)
D SUPPLY VOLTAGE: 4V to 12V
D SHUTDOWN MODE (OPAx726): 6µA/ch
APPLICATIONS
D OPTICAL NETWORKING
D TRANSIMPEDANCE AMPLIFIERS
D INTEGRATORS
D ACTIVE FILTERS
D A/D CONVERTER BUFFERS
D I/V CONVERTER FOR DACs
D PORTABLE AUDIO
D PROCESS CONTROL
D TEST EQUIPMENT
OPA725 RELATED PRODUCTS
FEATURES
10MHz, 16V, 16V/µs, 8.5nV/√Hz at 1kHz
8MHz, 36V, FET Input, 20V/µs, 8.5nV/√Hz at 1kHz
100MHz, 5.5V, Precision Transimpedance Amplifier
500MHz, ±5V, FET Input, 290V/µs, 7nV/√Hz at 100kHz
7MHz, 12V, RRIO, 10V/µs, 30nV/√Hz at 10kHz
16-Bit, 250kSPS, 4-Channel, Parallel Output ADC
PRODUCT
TLC080
OPA132
OPA380
OPA656
OPA743
ADS8342
DESCRIPTION
The OPA725 and OPA726 series op amps use a
state-of-the-art 12V analog CMOS process, and combine
outstanding ac performance with low bias current and
excellent CMRR, PSRR, and AOL. The 20MHz
Gain-Bandwidth (GBW) Product is achieved by using a
proprietary and patent-pending output stage design.
These characteristics allow excellent 16-bit settling times
for driving 16-bit Analog-to-Digital converters (ADCs).
Excellent ac characteristics, such as 20MHz GBW, 30V/µs
slew rate and 0.0003% THD+N make the OPA725 and
OPA726 well-suited for communication, high-end audio,
and active filter applications. With a bias current of less
than 200pA, they are well-suited for use as
transimpedance (I/V-conversion) amplifiers for monitoring
optical power in ONET applications.
The OPA725 and OPA726 op amps can be used in
single-supply applications from 4V up to 12V, or
dual-supply from ±2V to ±6V. The output swings to within
150mV of the rails, maximizing dynamic range. The
shutdown versions (OPAx726) reduce the quiescent
current to less than 6µA and feature a reference pin for
easy shutdown operation with standard CMOS logic in
dual-supply applications.
The OPA725 (single) is available in SOT23-5 and SO-8
packages, and the OPA2725 (dual) is available in MSOP-8
and SO-8 packages. The OPA726 (single with shutdown)
is available in MSOP-8 and SO-8. The OPA2726 (dual with
shutdown) is available in MSOP-10. All versions are
specified for operation from −40°C to +125°C.
+12V
+5V +5V
75Ω
OPA725
λ
O PA726
VOUT
VIN
±2.5V
330pF
AIN
ADS8342
16−Bit ADC
Enable
−5V
Common
−VB −5V
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments
semiconductor products and disclaimers thereto appears at the end of this data sheet.
All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date. Products
conform to specifications per the terms of Texas Instruments standard warranty.
Production processing does not necessarily include testing of all parameters.
Copyright 2003−2004, Texas Instruments Incorporated
www.ti.com
1 page  
www.ti.com
OPA725, OPA2725
OPA726, OPA2726
SBOS278B − SEPTEMBER 2003 − REVISED JANUARY 2004
ELECTRICAL CHARACTERISTICS: VS = +4V to +12V or VS = ±2V to ±6V (continued)
Boldface limits apply over the specified temperature range, TA = −40°C to +125°C.
At TA = +25°C, RL = 10kΩ connected to VS/2, and VOUT = VS/2, unless otherwise noted.
OPA725, OPA726, OPA2725, OPA2726
PARAMETER
CONDITIONS
MIN TYP MAX
OUTPUT
Voltage Output Swing from Rail
OPA725, OPA726
Over Temperature
OPA2725, OPA2726
Over Temperature
OPA725, OPA726
Over Temperature
OPA2725, OPA2726
Over Temperature
Output Current
Short-Circuit Current
Capacitive Load Drive
Open-Loop Output Impedance
IOUT
ISC
CLOAD
ENABLE/SHUTDOWN (OPAx726)
tOFF
tON
Enable Reference (DGND) Voltage Range
VL (shutdown)
VH (amplifier is active)
Input Disable Current
IQSD (per amplifier)
POWER SUPPLY
Specified Voltage Range
Operating Voltage Range
Quiescent Current (per amplifier)
Over Temperature
VDGND
VS
VS
IQ
RL = 100kΩ, AOL > 110dB
RL = 100kΩ, AOL > 100dB
RL = 100kΩ, AOL > 110dB
RL = 100kΩ, AOL > 100dB
RL = 1kΩ, AOL > 106dB
RL = 1kΩ, AOL > 96dB
RL = 2kΩ, AOL > 106dB
RL = 2kΩ, AOL > 96dB
VS − VOUT < 1V
f = 1MHz, IO = 0
Ref Pin = Enable Pin = V−
IO = 0
100 150
150
125 175
175
200 250
250
200 250
250
40
±55
See Typical Characteristics
40
V−
> VDGND +2V
5
30
(V+) − 2
< VDGND +0.8V
5
6 15
4 12
3.5 to 13.2
4.3 5.5
6
TEMPERATURE RANGE
Specified Range
Operating Range
Storage Range
Thermal Resistance
SOT23-5
MSOP-8, MSOP-10, SO-8
qJA
−40 125
−55 125
−55 150
200
150
UNIT
mV
mV
mV
mV
mV
mV
mV
mV
mA
mA
Ω
µs
µs
V
V
V
µA
µA
V
V
mA
mA
°C
°C
°C
°C/W
°C/W
5
5 Page 
www.ti.com
APPLICATIONS INFORMATION
OPA725 and OPA726 series 20MHz CMOS op amps have
a fast slew rate, low noise, and excellent PSRR, CMRR,
and AOL. These op amps can operate on typically 4.3mA
quiescent current from a single (or split) supply in the range
of 4V to 12V (±2V to ±6V), making them highly versatile
and easy to use. They are stable in a unity-gain
configuration.
Power-supply pins should be bypassed with 1nF ceramic
capacitors in parallel with 1µF tantalum capacitors.
OPERATING VOLTAGE
OPA725 series op amps are specified from 4V to 12V
supplies over a temperature range of −40°C to +125°C.
They will operate well in ±5V or +5V to +12V power-supply
systems. Parameters that vary significantly with operating
voltage or temperature are shown in the Typical
Characteristics.
ENABLE/SHUTDOWN
OPA725 series op amps require approximately 4.3mA
quiescent current. The enable/shutdown feature of the
OPA726 allows the op amp to be shut off to reduce this
current to approximately 6µA.
The enable/shutdown input is referenced to the Enable
Reference Pin, DGND (see Pin Configurations). This pin
can be connected to logic ground in dual-supply op amp
configurations to avoid level-shifting the enable logic
signal, as shown in Figure 1.
The Enable Reference Pin voltage, VDGND, must not
exceed (V+) − 2V. It may be set as low as V−. The amplifier
is enabled when the Enable Pin voltage is greater than
VDGND + 2V. The amplifier is disabled (shutdown) if the
Enable Pin voltage is less than VDGND + 0.8V. The Enable
Pin is connected to internal pull-up circuitry and will enable
the device if left unconnected.
COMMON-MODE VOLTAGE RANGE
The input common-mode voltage range of the OPA725
and OPA726 series extends from V− to (V+) − 2V.
Common-mode rejection is excellent throughout the input
voltage range from V− to (V+) − 3V. CMRR decreases
somewhat as the common-mode voltage extends to
(V+) − 2V, but remains very good and is tested throughout
this range. See the Electrical Characteristics table for
details.
OPA725, OPA2725
OPA726, OPA2726
SBOS278B − SEPTEMBER 2003 − REVISED JANUARY 2004
a) Single−Supply Configuration
Digital
Logic
Enable
+12V
OPA726
VOUT
DGND
b) Dual−Supply Configuration
Digital
Logic
Enable
+5V
OPA726
VOUT
−5V
DGND
Figure 1. Enable Reference Pin Connection for
Single- and Dual-Supply Configurations
INPUT OVER-VOLTAGE PROTECTION
Device inputs are protected by ESD diodes that will
conduct if the input voltages exceed the power supplies by
more than approximately 300mV. Momentary voltages
greater than 300mV beyond the power supply can be
tolerated if the current is limited to 10mA. This is easily
accomplished with an input resistor in series with the op
amp, as shown in Figure 2. The OPA725 series features
no phase inversion when the inputs extend beyond
supplies, if the input is current limited.
IOVERLOAD
10mA max
R
VIN
V+
OPA 72 5
V−
VOUT
Figure 2. Input Current Protection for Voltages
Exceeding the Supply Voltage
11
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet OPA2725.PDF ] | |
Hoja de datos destacado
| Número de pieza | Descripción | Fabricantes |
| OPA2725 | OPA725 and OPA726 Series: Very Low-Noise High-Speed 12V CMOS Op Amp (Rev. B) |  Texas Instruments |
| OPA2725 | (OPA725 - OPA726) 12V CMOS Operational Amplifier | Burr-Brown Corporation |
| OPA2726 | OPA725 and OPA726 Series: Very Low-Noise High-Speed 12V CMOS Op Amp (Rev. B) | Texas Instruments |
| OPA2726 | (OPA725 - OPA726) 12V CMOS Operational Amplifier | Burr-Brown Corporation |
| Número de pieza | Descripción | Fabricantes |
| SLA6805M | High Voltage 3 phase Motor Driver IC. |
 Sanken |
| SDC1742 | 12- and 14-Bit Hybrid Synchro / Resolver-to-Digital Converters. |
 Analog Devices |
|
DataSheet.es es una pagina web que funciona como un repositorio de manuales o hoja de datos de muchos de los productos más populares, |
| DataSheet.es | 2020 | Privacy Policy | Contacto | Buscar |