OPA4830 ¨ www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 Quad, Low-Power, Single-Supply, Wideband Operational Amplifier FEATURES 1 DESCRIPTION • HIGH BANDWIDTH: 280MHz (G = +1) 120MHz (G = +2) • LOW SUPPLY CURRENT: 3.9mA/ch (VS = +5V) • FLEXIBLE SUPPLY RANGE: ±1.4V to ±5.5V Dual Supply +2.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... 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.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 ELECTRICAL CHARACTERISTICS: VS = ±5V Boldface limits are tested at +25°C. At TA = +25°C, G = +2, RF = 750Ω, and RL = 150Ω to GND, unless otherwise noted.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS: VS = ±5V (continued) Boldface limits are tested at +25°C. At TA = +25°C, G = +2, RF = 750Ω, and RL = 150Ω to GND, unless otherwise noted. OPA4830IPW TYP PARAMETER CONDITIONS +25°C MIN/MAX OVER TEMPERATURE +25°C (2) 0°C to +70°C (3) –40°C to +85°C (3) ±5.5 ±5.5 ±5.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 ELECTRICAL CHARACTERISTICS: VS = +5V Boldface limits are tested at +25°C. At TA = +25°C, G = +2, RF = 750Ω, and RL = 150Ω to VS/2, unless otherwise noted.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS: VS = +5V (continued) Boldface limits are tested at +25°C. At TA = +25°C, G = +2, RF = 750Ω, and RL = 150Ω to VS/2, unless otherwise noted.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 ELECTRICAL CHARACTERISTICS: VS = +3V Boldface limits are tested at +25°C. At TA = +25°C, G = +2, and RL = 150Ω to VS/3, unless otherwise noted. OPA4830IPW TYP MIN/MAX OVER TEMPERATURE CONDITIONS +25°C +25°C (2) 0°C to +70°C (3) UNITS MIN/ MAX TEST LEVEL (1) G = +2, VO ≤ 0.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com ELECTRICAL CHARACTERISTICS: VS = +3V (continued) Boldface limits are tested at +25°C. At TA = +25°C, G = +2, and RL = 150Ω to VS/3, unless otherwise noted.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 TYPICAL CHARACTERISTICS: VS = ±5V At TA = +25°C, G = +2V/V, RF = 750Ω, and RL = 150Ω to GND, unless otherwise noted (see Figure 74). NONINVERTING SMALL-SIGNAL FREQUENCY RESPONSE 6 3 G = +1V/V RF = 0W 0 G = +2V/V -3 G = +5V/V -6 G = +10V/V -9 -12 G = -1 -3 -6 G = -5 -9 G = -10 -12 VO = 0.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: VS = ±5V (continued) At TA = +25°C, G = +2V/V, RF = 750Ω, and RL = 150Ω to GND, unless otherwise noted (see Figure 74).
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 TYPICAL CHARACTERISTICS: VS = ±5V (continued) At TA = +25°C, G = +2V/V, RF = 750Ω, and RL = 150Ω to GND, unless otherwise noted (see Figure 74).
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: VS = ±5V, Differential Configuration At TA = +25°C, RF = 604Ω (as shown in Figure 18), and RL = 500Ω, unless otherwise noted.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 TYPICAL CHARACTERISTICS: VS = +5V At TA = +25°C, G = +2V/V, RF = 750Ω to VS/2, and input VCM = 2.5V, unless otherwise noted (see Figure 72).
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: VS = +5V (continued) At TA = +25°C, G = +2V/V, RF = 750Ω to VS/2, and input VCM = 2.5V, unless otherwise noted (see Figure 72).
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 TYPICAL CHARACTERISTICS: VS = +5V (continued) At TA = +25°C, G = +2V/V, RF = 750Ω to VS/2, and input VCM = 2.5V, unless otherwise noted (see Figure 72).
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: VS = +5V (continued) At TA = +25°C, G = +2V/V, RF = 750Ω to VS/2, and input VCM = 2.5V, unless otherwise noted (see Figure 72).
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 TYPICAL CHARACTERISTICS: VS = +5V, Differential Configuration At TA = +25°C, RF = 604Ω, and RL = 500Ω differential (as shown in Figure 47), unless otherwise noted. DIFFERENTIAL SMALL-SIGNAL FREQUENCY RESPONSE 3 +5V GD = 1 1.2kW 0 2.5V GD = 2 1/4 0.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: VS = +3V At TA = +25°C, G = +2V/V, and RL = 150Ω to VS/3, unless otherwise noted (see Figure 73).
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 TYPICAL CHARACTERISTICS: VS = +3V (continued) At TA = +25°C, G = +2V/V, and RL = 150Ω to VS/3, unless otherwise noted (see Figure 73).
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com TYPICAL CHARACTERISTICS: VS = +3V (continued) At TA = +25°C, G = +2V/V, and RL = 150Ω to VS/3, unless otherwise noted (see Figure 73). OUTPUT SWING vs LOAD RESISTANCE 3.5 3.0 Output Voltage (V) 2.5 2.0 G = +5V/V 1.5 1.0 0.5 0 -0.5 10 100 1k Load Resistance (W) Figure 65.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 TYPICAL CHARACTERISTICS: VS = +3V, Differential Configuration At TA = +25°C, RF = 604Ω, and RL = 500Ω differential (as shown in Figure 66), unless otherwise noted. DIFFERENTIAL SMALL-SIGNAL FREQUENCY RESPONSE 3 +3V 1V 1kW 0.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com APPLICATION INFORMATION WIDEBAND VOLTAGE-FEEDBACK OPERATION The OPA4830 is a unity-gain stable, very high-speed voltage-feedback op amp designed for single-supply operation (+3V to +10V). The input stage supports input voltages below ground and to within 1.7V of the positive supply.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 Figure 74 illustrates the dc-coupled, gain of +2V/V, dual power-supply circuit configuration used as the basis of the ±5V Electrical Characteristics and Typical Characteristics.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com +5V 1.87kW Video DAC 78.7W 47mF 1/4 OPA4830 75W VO 75W Load 22mF 845W 325W 528W 650W Figure 76. Video Line Driver with SAG Correction Low-power and low-cost video line drivers often buffer digital-to-analog converter (DAC) outputs with a gain of 2V/V into a doubly-terminated line.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 NONINVERTING AMPLIFIER WITH REDUCED PEAKING Figure 78 shows a noninverting amplifier that reduces peaking at low gains. The resistor RC compensates the OPA4830 to have higher noise gain (NG), which reduces the ac response peaking (typically 5dB at G = +1V/V without RC) without changing the dc gain.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com DIFFERENTIAL INTERFACE APPLICATIONS Dual and quad op amps are particularly suitable to differential input to differential output applications. Typically, these op amps fall into either ADC input interface or line driver applications.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 DC-COUPLED SINGLE-TO-DIFFERENTIAL CONVERSION common-mode voltage, VCM, is cut in half and applied to the noninverting input of the second stage. The signal path in this stage sees a gain of –1V/V while this (1/2 × VCM) voltage sees a gain of +2V/V.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com 100pF 100pF +5V 161W 77W 121W 100pF 294W 1/4 OPA4830 VO/VI = 4V/V 100pF 1/4 OPA4830 250W 500W 250W 100pF 161W 121W 1/4 OPA4830 PD = 225mW 250W 500W VI f-3dB = 10MHz VO 250W 100pF 77W 294W 100pF 1/4 OPA4830 100pF -5V GD = 2, wO = 2p 10MHz, Q = 0.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 DUAL-CHANNEL, DIFFERENTIAL ADC DRIVER Where a low-noise, single-supply, interface to a differential input +5V ADC is required, the circuit of Figure 85 can provide a high dynamic range, medium gain interface for dual high-performance ADCs.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com 625W 750W 75W Transmission Line 1/4 OPA4830 75W VOUT Video Input 75W 75W 75W VOUT 75W High output current drive capability allows three back-terminated 75W transmission lines to be simultaneously driven. 75W VOUT 75W Figure 86.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 The dc gain for this circuit is equal to RF. At high frequencies, the DAC output capacitance (CD) produces a zero in the noise gain for the OPA4830 that may cause peaking in the closed-loop frequency response. CF is added across RF to compensate for this noise-gain peaking.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com BANDWIDTH VS GAIN: NONINVERTING OPERATION Voltage-feedback op amps exhibit decreasing closed-loop bandwidth as the signal gain is increased. In theory, this relationship is described by the gain bandwidth product (GBP) shown in the Electrical Characteristics.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 The second major consideration, touched on in the previous paragraph, is that the signal source impedance becomes part of the noise gain equation and thus influences the bandwidth.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com DISTORTION PERFORMANCE ENI The OPA4830 provides good distortion performance into a 150Ω load. Relative to alternative solutions, it provides exceptional performance into lighter loads and/or operating on a single +3V supply.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 DC ACCURACY AND OFFSET CONTROL THERMAL ANALYSIS The balanced input stage of a wideband voltage-feedback op amp allows good output dc accuracy in a wide variety of applications. The power-supply current trim for the OPA4830 gives even tighter control than comparable products.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com BOARD LAYOUT GUIDELINES Achieving optimum performance with a high-frequency amplifier like the OPA4830 requires careful attention to board layout parasitics and external component types.
OPA4830 www.ti.com.................................................................................................................................................... SBOS350A – DECEMBER 2006 – REVISED MAY 2008 e) Socketing a high-speed part is not recommended. The additional lead length and pin-to-pin capacitance introduced by the socket can create an extremely troublesome parasitic network which can make it almost impossible to achieve a smooth, stable frequency response.
OPA4830 SBOS350A – DECEMBER 2006 – REVISED MAY 2008.................................................................................................................................................... www.ti.com Revision History Changes from Original (December 2006) to Revision A ................................................................................................ Page • 38 Changed rating for storage temperature range in Absolute Maximum Ratings table from –40°C to +125°C to –65°C to +125°C....
PACKAGE OPTION ADDENDUM www.ti.
PACKAGE OPTION ADDENDUM www.ti.
PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 TAPE AND REEL INFORMATION *All dimensions are nominal Device OPA4830IPWR Package Package Pins Type Drawing TSSOP PW 14 SPQ Reel Reel A0 Diameter Width (mm) (mm) W1 (mm) 2000 330.0 12.4 Pack Materials-Page 1 6.9 B0 (mm) K0 (mm) P1 (mm) 5.6 1.6 8.0 W Pin1 (mm) Quadrant 12.
PACKAGE MATERIALS INFORMATION www.ti.com 26-Jan-2013 *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) OPA4830IPWR TSSOP PW 14 2000 367.0 367.0 35.
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