Datasheet

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OPA705

OPA2705

OPA4705

Low-Cost, CMOS, Rail-to-Rail, I/O

OPERATIONAL AMPLIFIERS

FEATURES

● RAIL-TO-RAIL INPUT AND OUTPUT

● WIDE SUPPLY RANGE:

Single Supply: 4V to 12V

Dual Supplies:

±2 to ±6

● LOW QUIESCENT CURRENT: 160µA

● LIMITED RANGE CMRR: 96dB

● LOW OFFSET: 0.5mV

● HIGH SPEED: 1MHz, 0.6V/µs

●

Micro

SIZE PACKAGES:

SOT23-5, MSOP-8, TSSOP-14

● LOW INPUT BIAS CURRENT: 1pA

APPLICATIONS

● AUTOMOTIVE APPLICATIONS:

Audio, Sensor Applications, Security Systems

● PORTABLE EQUIPMENT

● ACTIVE FILTERS

● TRANSDUCER AMPLIFIER

● TEST EQUIPMENT

● DATA ACQUISITION

DESCRIPTION

The OPA705 series low-cost op amps are optimized for appli-

cations requiring rail-to-rail input and output swing. Single,

dual, and quad versions are offered in a variety of packages.

While the quiescent current is less than 200µA per amplifier,

the OPA705 still offers excellent dynamic performance

(1MHz GBW and 0.6V/µs SR) and unity-gain stability.

The OPA705 series is fully specified and guaranteed over

the supply range of ±2V to ±6V. Input swing extends

300mV beyond the rail and the output swings to within

40mV of the rail.

The single version (OPA705) is available in the MicroSIZE

SOT23-5 and in the standard SO-8 surface-mount packages.

The dual version (OPA2705) is available in the MSOP-8,

SO-8, and DIP-8 packages. The quad OPA4705 is available

in the TSSOP-14 and SO-14 packages. All are specified for

operation from –40°C to +85°C.

V+

–In

Out

V–

+In

OPA705

SOT23-5

V+

Out

–In

+In

V–

OPA705

SO-8, DIP-8

V+

Out B

–In B

+In B

Out A

–In A

+In A

V–

OPA2705

MSOP-8, SO-8, DIP-8

Out D

–In D

+In D

V–

+In C

–In C

Out C

Out A

–In A

+In A

V+

+In B

–In B

Out B

OPA4705

TSSOP-14, SO-14

SBOS182A – JUNE 2001

www.ti.com

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.

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.

OPA705

Summary of content (15 pages)

PAGE 1
OPA705 O PA OPA2705 OPA4705 705 OPA 705 OPA OPA 705 705 ® SBOS182A – JUNE 2001 Low-Cost, CMOS, Rail-to-Rail, I/O OPERATIONAL AMPLIFIERS FEATURES DESCRIPTION ● RAIL-TO-RAIL INPUT AND OUTPUT ● WIDE SUPPLY RANGE: Single Supply: 4V to 12V Dual Supplies: ±2 to ±6 ● LOW QUIESCENT CURRENT: 160µA ● LIMITED RANGE CMRR: 96dB ● LOW OFFSET: 0.5mV ● HIGH SPEED: 1MHz, 0.
PAGE 2
ABSOLUTE MAXIMUM RATINGS(1) ELECTROSTATIC DISCHARGE SENSITIVITY Supply Voltage, V+ to V– ................................................................. 13.2V Signal Input Terminals, Voltage(2) ..................... (V–) –0.3V to (V+) +0.3V Current(2) .................................................... 10mA Output Short-Circuit(3) .............................................................. Continuous Operating Temperature ..................................................
PAGE 3
ELECTRICAL CHARACTERISTICS: VS = 4V to 12V Boldface limits apply over the specified temperature range, TA = –40°C to +85°C At TA = +25°C, RL = 20kΩ connected to VS / 2 and VOUT = VS / 2, unless otherwise noted.
PAGE 4
TYPICAL CHARACTERISTICS At TA = +25°C, VS = ±5V, and RL = 20kΩ, unless otherwise noted.
PAGE 5
TYPICAL CHARACTERISTICS (Cont.) At TA = +25°C, VS = ±5V, and RL = 20kΩ, unless otherwise noted.
PAGE 6
TYPICAL CHARACTERISTICS (Cont.) At TA = +25°C, VS = ±5V, and RL = 20kΩ, unless otherwise noted.
PAGE 7
TYPICAL CHARACTERISTICS (Cont.) At TA = +25°C, VS = ±5V, and RL = 20kΩ, unless otherwise noted. SETTLING TIME vs GAIN VOS PRODUCTION DISTRIBUTION 100 25 90 20 70 Frequency (%) Settling Time (µs) 80 0.01% 60 50 40 30 10 5 0.1% 20 15 10 0 100 –5.0 –4.5 –4.0 –3.5 –3.0 –2.5 –2.0 –1.5 –1.0 –0.5 0.1 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.
PAGE 8
APPLICATIONS INFORMATION Power-supply pins should be bypassed with 1000pF ceramic capacitors in parallel with 1µF tantalum capacitors. OPA705 series op amps can operate on 160µA 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. The OPA705 is unity-gain stable and offers 1MHz bandwidth and 0.6V/µs slew rate.
PAGE 9
INPUT VOLTAGE 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, as shown in Figure 3. Many input signals are inherently current-limited to less than 10mA; therefore, a limiting resistor is not always required.
PAGE 10
NC 48 NC 47 NC 46 NC 45 VOUTA Sense 44 VOUTA 43 VREFL AB Sense 42 VREFL AB 41 VREFH AB 40 VREFH AB Sense 39 DAC7644 VOUTB Sense 38 VOUTB 37 +V V– VOUT –2.5V 1/2 OPA2705 Ref Negative Reference 500pF V+ 500pF 1/2 OPA2705 VOUT +2.5V Ref Positive Reference –V FIGURE 6. OPA705 as Dual Supply Configuration-Buffered References for the DAC7644.
PAGE 11
PACKAGE OPTION ADDENDUM www.ti.
PAGE 12
PACKAGE OPTION ADDENDUM www.ti.
PAGE 13
PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing OPA2705EA/250 VSSOP DGK 8 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 250 180.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 OPA4705EA/250 TSSOP PW 14 250 180.0 12.4 6.9 5.6 1.6 8.0 12.0 Q1 OPA4705EA/2K5 TSSOP PW 14 2500 330.0 12.4 6.9 5.6 1.6 8.0 12.
PAGE 14
PACKAGE MATERIALS INFORMATION www.ti.com 16-Aug-2012 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA2705EA/250 VSSOP OPA4705EA/250 TSSOP DGK 8 250 210.0 185.0 35.0 PW 14 250 210.0 185.0 35.0 OPA4705EA/2K5 TSSOP PW 14 2500 367.0 367.0 35.0 OPA705NA/250 SOT-23 DBV 5 250 210.0 185.0 35.0 OPA705NA/3K SOT-23 DBV 5 3000 210.0 185.0 35.
PAGE 15
IMPORTANT NOTICE Texas Instruments Incorporated and its subsidiaries (TI) reserve the right to make corrections, enhancements, improvements and other changes to its semiconductor products and services per JESD46C and to discontinue any product or service per JESD48B. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.