PDF OPA4820 Data sheet ( Hoja de datos )

Número de pieza	OPA4820
Descripción	Low-Power / Single-Supply / Wideband Operational Amplifier
Fabricantes	Burr-Brown
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No Preview Available ! OPA4820 SBOS317C − SEPTEMBER 2004 − REVISED JUNE 2006 Quad, Unity-Gain Stable, Low-Noise, Voltage-Feedback Operational Amplifier FEATURES DESCRIPTION D HIGH BANDWIDTH: 220MHz (G = +2) D HIGH OUTPUT CURRENT: ±85mA D LOW INPUT NOISE: 2.5nV/√Hz D LOW SUPPLY CURRENT: 5.7mA/ch D FLEXIBLE SUPPLY VOLTAGE: ±2V to ±6.3V Dual Supply +4V to +12.6V Single Supply D EXCELLENT DC ACCURACY: Maximum 25°C Input Offset Voltage = 0.8mV Maximum 25°C Input Offset Current = 500nA The OPA4820 provides a wideband, unity-gain stable, voltage-feedback amplifier with a very low input noise voltage and high output current using a low 5.7mA/ch supply current. At unity-gain, the OPA4820 gives > 600MHz bandwidth with < 1 dB peaking. The OPA4820 complements this high-speed operation with excellent DC precision in a low-power device. A worst-case input offset voltage of ±0.8mV and an offset current of ±500nA give excellent absolute DC precision for pulse amplifier applications. Minimal input and output voltage swing headroom allow the OPA4820 to operate on a single +5V supply with APPLICATIONS D LOW-COST VIDEO LINE DRIVERS D ADC PREAMPS > 2VPP output swing. While not a rail-to-rail (RR) output, this swing will support most emerging analog-to-digital converter (ADC) input ranges with lower power and noise than typical RR output op amps. D ACTIVE FILTERS D LOW-NOISE INTEGRATORS D PORTABLE TEST EQUIPMENT D OPTICAL CHANNEL AMPLIFIERS D LOW-POWER, BASEBAND AMPLIFIERS Exceptionally low dG/dP (0.01%/0.03°) supports low-cost composite video line driver applications. Existing designs can use the industry-standard quad pinout SO-14 package while emerging high-density portable applications can use the TSSOP-14. D CCD IMAGING CHANNEL AMPLIFIERS RELATED PRODUCTS D OPA4650 UPGRADE +12V 10kΩ 1/4 OPA4820 SINGLES OPA354 OPA690 — — OPA820 DUALS OPA2354 OPA2690 OPA2652 OPA2822 — TRIPLES — OPA3690 — — — QUADS OPA4354 — — — — FEATURES CMOS RR Output High Slew Rate SOT23-8 Low-Noise Single Channel 402Ω 50Ω 1:1 Transmit Filter 2VPP +6V VCM 133Ω 402Ω 14VPP 50Ω 100Ω 10dBm Line 3.5 Crest Factor 10kΩ 1/4 OPA4820 AFE 800Ω 1/4 OPA4820 VCM 800Ω 402Ω 402Ω Receiver Filter 402Ω 402Ω 1/4 OPA4820 VCM Low-Noise Transceiver Interface 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  2004−2006, Texas Instruments Incorporated www.ti.com 1 page www.ti.com TYPICAL CHARACTERISTICS: VS = ±5V RF = 402Ω, RL = 100Ω, and G = +2, unless otherwise noted. NONINVERTING SMALL−SIGNAL FREQUENCY RESPONSE 3 G = +1, RF = 25Ω 0 −3 G = +5 G = +2 −6 G = +10 −9 −12 −15 VO = 0.1VPP RL = 100Ω See Figure 1 −18 1M 10M 100M Frequency (Hz) 1G NONINVERTING LARGE−SIGNAL FREQUENCY RESPONSE 9 VO = 0.5VPP 6 3 0 −3 −6 G = +2V/V −9 RL = 100Ω See Figure 1 −12 1 VO = 1VPP VO = 2VPP VO = 4VPP 10 100 Frequency (MHz) 500 NONINVERTING PULSE RESPONSE 0.4 G = +2V/V 0.3 See Figure 1 0.2 Large−Signal ± 1V Right Scale 0.1 Small−Signal ± 100mV 0 Left Scale −0.1 −0.2 −0.3 −0.4 Time (10ns/div) 2.0 1.5 1.0 0.5 0 −0.5 −1.0 −1.5 −2.0 OPA4820 SBOS317C − SEPTEMBER 2004 − REVISED JUNE 2006 INVERTING SMALL−SIGNAL FREQUENCY RESPONSE 3 G = −1 0 −3 G = −5 G = −2 −6 G = −10 −9 −12 −15 VO = 0.1VPP RL = 100Ω See Figure 2 −18 1 10 100 Frequency (MHz) 500 INVERTING LARGE−SIGNAL FREQUENCY RESPONSE 3 VO = 0.5VPP 0 VO = 1VPP −3 VO = 2VPP −6 VO = 4VPP −9 −12 G = −1V/V −15 RL = 100Ω See Figure 2 −18 1 10 100 Frequency (MHz) 500 INVERTING PULSE RESPONSE 0.4 G = −1V/V 0.3 See Figure 2 0.2 0.1 0 Small−Signal ± 100mV Left Scale −0.1 −0.2 Large−Signal ± 1V −0.3 Right Scale −0.4 Time (10ns/div) 2.0 1.5 1.0 0.5 0 −0.5 −1.0 −1.5 −2.0 5 5 Page www.ti.com TYPICAL CHARACTERISTICS: VS = +5V (continued) RF = 402Ω, RL = 100Ω to VS/2, and G = +2, unless otherwise noted. OPA4820 SBOS317C − SEPTEMBER 2004 − REVISED JUNE 2006 HARMONIC DISTORTION vs LOAD RESISTANCE −60 −65 G = +2V/V f = 1MHz −70 VO = 2VPP −75 2nd−Harmonic −80 −85 −90 3rd−Harmonic −95 −100 −105 100 Resistance (Ω) 1000 HARMONIC DISTORTION vs FREQUENCY −60 −65 G = +2V/V RL = 200Ω −70 VO = 2VPP 2nd−Harmonic −75 −80 −85 −90 3rd−Harmonic −95 −100 −105 0.1 1 Frequency (MHz) 10 HARMONIC DISTORTION vs OUTPUT VOLTAGE −60 G = +2V/V −65 f = 1MHz −70 RL = 200Ω See Figure 3 −75 −80 2nd−Harmonic −85 −90 −95 −100 3rd−Harmonic −105 0.1 1 Output Voltage Swing (VPP) 10 HARMONIC DISTORTION vs INVERTING GAIN −60 f = 1MHz −65 RL = 200Ω −70 VO = 2VPP See Figure 4 2nd−Harmonic −75 −80 −85 3rd−Harmonic −90 −95 −100 −105 1 Gain ( V/V ) 10 HARMONIC DISTORTION vs NONINVERTING GAIN −60 f = 1MHz −65 RL = 200Ω −70 VO = 2VPP See Figure 3 −75 2nd−Harmonic −80 −85 −90 3rd−Harmonic −95 −100 −105 1 Gain (V/V) 10 40 35 30 25 20 15 0 TWO−TONE, 3RD−ORDER INTERMODULATION INTERCEPT +5V 0.01µF 806Ω P I 57.6Ω 1/4 806Ω OPA4820 402Ω 402Ω 0.1µF PO 200Ω 0.1µF 5 10 15 20 25 30 Frequency (MHz) 11 11 Page

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