Datasheet

ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Multi-purpose SOIC 8

OPA322, OPA322S

OPA2322, OPA2322S

OPA4322, OPA4322S

www.ti.com

SBOS538E –JANUARY 2011–REVISED JUNE 2012

20-MHz, Low-Noise, 1.8-V, RRI/O,

CMOS Operational Amplifier with Shutdown

Check for Samples: OPA322, OPA322S, OPA2322, OPA2322S, OPA4322, OPA4322S

FEATURES

DESCRIPTION

The OPA322 series consists of single, dual, and

• Gain Bandwidth: 20 MHz

quad-channel CMOS operational amplifiers featuring

• Low Noise: 8.5 nV/√Hz at 1 kHz

low noise and rail-to-rail inputs/outputs optimized for

• Slew Rate: 10 V/μs

low-power, single-supply applications. Specified over

a wide supply range of 1.8 V to 5.5 V, the low

• Low THD+N: 0.0005%

quiescent current of only 1.5 mA per channel makes

• Rail-to-Rail I/O

these devices well-suited for power-sensitive

• Offset Voltage: 2 mV (max)

applications.

• Supply Voltage: 1.8 V to 5.5 V

The combination of very low noise (8.5 nV/√Hz at

• Supply Current: 1.5 mA/ch

1 kHz), high gain-bandwidth (20 MHz), and fast slew

rate (10 V/μs) make the OPA322 family ideal for a

– Shutdown: 0.1 μA/ch

wide range of applications, including signal

• Unity-Gain Stable

conditioning and sensor amplification requiring high

• Small Packages:

gains. Featuring low THD+N, the OPA322 series is

also excellent for consumer audio applications,

– SOT23, DFN, MSOP, TSSOP

particularly for single-supply systems.

APPLICATIONS

The OPAx322S models include a shutdown mode

allowing the amplifiers to be switched from normal

• Sensor Signal Conditioning

operation to a standby current that is typically less

• Consumer Audio

than 0.1 μA.

• Multi-Pole Active Filters

The OPA322 (single version) is available in SOT23-5

• Control-Loop Amplifiers

and SOT23-6, while the OPA2322 (dual version) is

• Communications

offered in MSOP-8, MSOP-10, SO-8, and DFN-8

packages. The quad versions OPA4322 come in

• Security

TSSOP-14 and TSSOP-16 packages. All versions are

• Scanners

specified for operation from –40°C to +125°C.

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.

2FilterPro is a trademark of Texas Instruments Incorporated.

3All other trademarks are the property of their respective owners.

UNLESS OTHERWISE NOTED this document contains

PRODUCTION DATA information 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.

Summary of content (37 pages)

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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S www.ti.com SBOS538E – JANUARY 2011 – REVISED JUNE 2012 20-MHz, Low-Noise, 1.8-V, RRI/O, CMOS Operational Amplifier with Shutdown Check for Samples: OPA322, OPA322S, OPA2322, OPA2322S, OPA4322, OPA4322S FEATURES DESCRIPTION • • • • • • • • The OPA322 series consists of single, dual, and quad-channel CMOS operational amplifiers featuring low noise and rail-to-rail inputs/outputs optimized for low-power, single-supply applications.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S SBOS538E – JANUARY 2011 – REVISED JUNE 2012 www.ti.com This integrated circuit can be damaged by ESD. Texas Instruments recommends that all integrated circuits be handled with appropriate precautions. Failure to observe proper handling and installation procedures can cause damage. ESD damage can range from subtle performance degradation to complete device failure.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S www.ti.com SBOS538E – JANUARY 2011 – REVISED JUNE 2012 ELECTRICAL CHARACTERISTICS: VS = +1.8 V to +5.5 V, or ±0.9 V to ±2.75 V Boldface limits apply over the specified temperature range, TA = –40°C to +125°C. At TA = +25°C, RL = 10 kΩ connected to VS/2, VCM = VS/2, VOUT = VS/2, and SHDN_x = VS+, unless otherwise noted.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S SBOS538E – JANUARY 2011 – REVISED JUNE 2012 www.ti.com ELECTRICAL CHARACTERISTICS: VS = +1.8 V to +5.5 V, or ±0.9 V to ±2.75 V (continued) Boldface limits apply over the specified temperature range, TA = –40°C to +125°C. At TA = +25°C, RL = 10 kΩ connected to VS/2, VCM = VS/2, VOUT = VS/2, and SHDN_x = VS+, unless otherwise noted.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S www.ti.com SBOS538E – JANUARY 2011 – REVISED JUNE 2012 THERMAL INFORMATION: OPA322 OPA322 THERMAL METRIC (1) OPA322S DBV DBV 5 PINS 6 PINS UNITS θJA Junction-to-ambient thermal resistance 219.3 177.5 θJC(top) Junction-to-case(top) thermal resistance 107.5 108.9 θJB Junction-to-board thermal resistance 57.5 27.4 ψJT Junction-to-top characterization parameter 7.4 13.3 ψJB Junction-to-board characterization parameter 56.9 26.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S SBOS538E – JANUARY 2011 – REVISED JUNE 2012 www.ti.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S www.ti.com SBOS538E – JANUARY 2011 – REVISED JUNE 2012 TYPICAL CHARACTERISTICS At TA = +25°C, VCM = VOUT = mid-supply, and RL = 10 kΩ, unless otherwise noted. OPEN-LOOP GAIN/PHASE vs FREQUENCY 125 -40 120 100 -60 115 80 -80 60 -100 40 -120 20 -140 -20 10 1 100 1k 10k 100k 1M 10M Phase (°) Gain Phase 0 10 kW Load Open-Loop Gain (dB) RL = 10 kW, 50 pF VS = ±2.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S SBOS538E – JANUARY 2011 – REVISED JUNE 2012 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VCM = VOUT = mid-supply, and RL = 10 kΩ, unless otherwise noted. OFFSET VOLTAGE PRODUCTION HISTOGRAM OFFSET VOLTAGE vs COMMON-MODE VOLTAGE 1 14 0.8 0.6 Offset Voltage (mV) Number of Amplifiers (%) 12 10 8 6 4 0.4 0.2 0 -0.2 -0.4 -0.6 2 Representative Units VS = ±2.75 V -0.8 0 1.5 1.1 1.3 0.9 0.5 0.7 0.1 0.3 -0.1 -0.3 -0.5 -0.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S www.ti.com SBOS538E – JANUARY 2011 – REVISED JUNE 2012 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VCM = VOUT = mid-supply, and RL = 10 kΩ, unless otherwise noted. MAXIMUM OUTPUT VOLTAGE vs FREQUENCY OUTPUT VOLTAGE SWING vs OUTPUT CURRENT 6 3 5.5 VS 2 4 Output Voltage (V) Output Voltage (VPP) 5 3.3 VS 3 2 1 -40°C +25°C +125°C 0 -1 1.8 VS 1 -2 RL = 10 kW CL = 50 pF VS = ±2.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S SBOS538E – JANUARY 2011 – REVISED JUNE 2012 www.ti.com TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VCM = VOUT = mid-supply, and RL = 10 kΩ, unless otherwise noted. CHANNEL SEPARATION vs FREQUENCY (for Dual) 0 Frequency = 10 kHz VIN = 4 VPP VS = ±2.5 V G = +1 V/V VS = ±2.75 V -20 Channel Separation (dB) Total Harmonic Distortion and Noise (%) THD+N vs FREQUENCY 0.1 0.01 Load = 600 W 0.001 -60 -80 -100 -120 Load = 10 kW 0.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S www.ti.com SBOS538E – JANUARY 2011 – REVISED JUNE 2012 TYPICAL CHARACTERISTICS (continued) At TA = +25°C, VCM = VOUT = mid-supply, and RL = 10 kΩ, unless otherwise noted. CMRR AND PSRR vs FREQUENCY TURN-OFF TRANSIENT 3 Shutdown Signal Output Signal 2.4 100 1.8 1.2 80 Voltage (V) Common-Mode Rejection Ratio, Power-Supply Rejection Ratio (dB) 120 60 40 0.6 0 −0.6 −1.2 −1.8 20 PSRR CMRR −2.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S SBOS538E – JANUARY 2011 – REVISED JUNE 2012 www.ti.com APPLICATION INFORMATION OPERATING VOLTAGE The OPA322 series op amps are unity-gain stable and can operate on a single-supply voltage (1.8 V to 5.5 V), or a split-supply voltage (±0.9 V to ±2.75 V), making them highly versatile and easy to use. The power-supply pins should have local bypass ceramic capacitors (typically 0.001 μF to 0.1 μF). These amplifiers are fully specified from +1.8 V to +5.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S www.ti.com SBOS538E – JANUARY 2011 – REVISED JUNE 2012 FEEDBACK CAPACITOR IMPROVES RESPONSE For optimum settling time and stability with high-impedance feedback networks, it may be necessary to add a feedback capacitor across the feedback resistor, RF, as shown in Figure 32. This capacitor compensates for the zero created by the feedback network impedance and the OPA322 input capacitance (and any parasitic layout capacitance).
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S SBOS538E – JANUARY 2011 – REVISED JUNE 2012 www.ti.com CAPACITIVE LOAD AND STABILITY The OPA322 is designed to be used in applications where driving a capacitive load is required. As with all op amps, there may be specific instances where the OPA322 can become unstable. The particular op amp circuit configuration, layout, gain, and output loading are some of the factors to consider when establishing whether an amplifier is stable in operation.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S www.ti.com SBOS538E – JANUARY 2011 – REVISED JUNE 2012 OVERLOAD RECOVERY TIME Overload recovery time is the time required for the output of the amplifier to come out of saturation and recover to the linear region. Overload recovery is particularly important in applications where small signals must be amplified in the presence of large transients. Figure 35 and Figure 36 show the positive and negative overload recovery times of the OPA322, respectively.
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S SBOS538E – JANUARY 2011 – REVISED JUNE 2012 www.ti.com The DFN package can easily be mounted using standard PCB assembly techniques. See the application reports, QFN/SON PCB Attachment (SLUA271) and Quad Flatpack No-Lead Logic Packages (SCBA017), both available for download at www.ti.com. The exposed leadframe die pad on the bottom of the DFN package should be connected to the most negative potential (V–).
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OPA322, OPA322S OPA2322, OPA2322S OPA4322, OPA4322S www.ti.com SBOS538E – JANUARY 2011 – REVISED JUNE 2012 REVISION HISTORY NOTE: Page numbers for previous revisions may differ from page numbers in the current version. Changes from Revision D (March 2012) to Revision E Page • Changed product status from Production Data to Mixed Status .......................................................................................... 1 • Updated D, DGK pinout drawing ...........................................
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PACKAGE OPTION ADDENDUM www.ti.
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PACKAGE OPTION ADDENDUM www.ti.com 18-Oct-2013 LIFEBUY: TI has announced that the device will be discontinued, and a lifetime-buy period is in effect. NRND: Not recommended for new designs. Device is in production to support existing customers, but TI does not recommend using this part in a new design. PREVIEW: Device has been announced but is not in production. Samples may or may not be available. OBSOLETE: TI has discontinued the production of the device.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Oct-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device Package Package Pins Type Drawing OPA2322AIDGKR VSSOP DGK 8 OPA2322AIDGKT VSSOP DGK OPA2322AIDR SOIC D OPA2322AIDRGR SON OPA2322SAIDGSR SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) B0 (mm) K0 (mm) P1 (mm) W Pin1 (mm) Quadrant 2500 330.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 8 250 180.0 12.4 5.3 3.4 1.4 8.0 12.0 Q1 8 2500 330.0 12.4 6.4 5.2 2.1 8.
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PACKAGE MATERIALS INFORMATION www.ti.com 14-Oct-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA2322AIDGKR VSSOP DGK 8 2500 367.0 367.0 35.0 OPA2322AIDGKT VSSOP DGK 8 250 210.0 185.0 35.0 OPA2322AIDR SOIC D 8 2500 367.0 367.0 35.0 OPA2322AIDRGR SON DRG 8 3000 367.0 367.0 35.0 OPA2322SAIDGSR VSSOP DGS 10 2500 367.0 367.0 35.0 OPA2322SAIDGST VSSOP DGS 10 250 210.0 185.0 35.
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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 JESD46, latest issue, and to discontinue any product or service per JESD48, latest issue. Buyers should obtain the latest relevant information before placing orders and should verify that such information is current and complete.