OPA698MJD中文资料
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Package drawings, standard packing quantities, thermal data, symbolization, and PCB design guidelines are available at /sc/package.
ELECTRICAL CHARACTERISTICS
VS = ±5 V, VICM = 0 V, RL = 500 Ω, limiter pins open (unless otherwise noted) (1)
PARAMETER AC PERFORMANCE (see Figure 47) VO < 0.2 Vp-p, G = +1, RF = 25 Ω Small signal bandwidth Gain-bandwidth product (G ≥ 5) Bandwidth for 0.1-dB gain flatness Gain peaking Large signal bandwidth Slew rate Rise and fall time Settling time to 0.05% Second harmonic distortion Third harmonic distortion Differential gain Differential phase Input noise, voltage noise density Input noise, current noise density VO < 0.2 Vp-p, G = +2 VO < 0.2 Vp-p, G = –1 VO < 0.2 Vp-p VO = 0.2 V VO < 0.2 Vp-p, G = +1, RF = 25 Ω VO = 4 Vp-p, VH = –VL = 2.5 V 4 V step, VH = –VL = 2.5 V 0.2 V step 2 V step VO = 2 Vp-p, f = 5 MHz VO = 2 Vp-p, f = 5 MHz RL = 500 Ω, NTSC, PAL RL = 500 Ω, NTSC, PAL f ≥ 1 MHz f ≥ 1 MHz 450 215 215 250 30 5 160 1100 1.6 8 –74 –87 0.012% 0.008 5.6 2.2 ° nV/√Hz pA/√Hz MHz MHz dB MHz V/µs ns ns dB dB MHz TEST CONDITIONS MIN TYP MAX UNIT
PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of the Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters.
RECOMMENDED OPERATING CONDITIONS
MIN Operating voltage Split-rail operation Single-supply operation –55 NOM ±5 5 MAX ±6 12 125 UNIT V °C
Operating free-air temperature
元器件交易网 OPA698M
SGLS287A – MAY 2005 – REVISED MARCH 2006
UNITY-GAIN STABLE WIDEBAND VOLTAGE LIMITING AMPLIFIER
FEATURES
• • • • • • • • • • • • • • • High Linearity Near Limiting Fast Recovery from Overdrive: 1 ns Limiting Voltage Accuracy: ±15 mV -3-dB Bandwidth (G = +1): 450 MHz Slew Rate: 1100 V/ms ±5-V and 5-V Supply Operation Unity Gain Version of the OPA699
Copyright © 2005–2006, Texas Instruments Incorporated
元器件交易网 OPA698M
SGLS287A – MAY 2005 – REVISED MARCH 2006
These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage tCRIPTION
The OPA698 is a wideband, unity gain stable voltage-feedback op amp that offers bipolar output voltage limiting. Two buffered limiting voltages take control of the output when it attempts to drive beyond these limits. This new output limiting architecture holds the limiter offset error to ±15 mV. The op amp operates linearly to within 30 mV of the output limit voltages. The combination of narrow nonlinear range and low limiting offset allows the limiting voltages to be set within 100 mV of the desired linear output range. A fast 1-ns recovery from limiting ensures that overdrive signals will be transparent to the signal channel. Implementing the limiting function at the output, as opposed to the input, gives the specified limiting accuracy for any gain and allows the OPA698 to be used in all standard op amp applications. Non-linear analog signal processing benefits from the ability of the OPA698 to sharply transition from linear operation to output limiting. The quick recovery time supports high-speed applications. The OPA698M is available in an industry standard pinout CDIP-8 package. For higher gain or transimpedance applications requiring output limiting with fast recovery, consider the OPA699M. ORDERING INFORMATION (1)
JD PACKAGE (TOP VIEW)
NC INVERTING INPUT NONINVERTING INPUT -V S
1 2 3 4
8 7 6 5
VH +VS OUTPUT VL
NC - No internal connection
P0013-01
APPLICATIONS
Fast Limiting ADC Input Buffers CCD Pixel Clock Stripping Video Sync Stripping HF Mixers IF Limiting Amplifiers AM Signal Generation Non-Linear Analog Signal Processing OPA688M Replacement
Stresses beyond those listed under absolute maximum ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated under recommended operating conditions is not implied. Exposure to absolute-maximum-rated conditions for extended periods may affect device reliability. The package thermal impedance is measured per MIL-STD-883, Method 1012.1.