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ManualsBrandsTEXAS INSTRUMENTS ManualsLinear ICsLinear IC - Op-amp Voltage feedback PDIP 8

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OPA633

High Speed

BUFFER AMPLIFIER

DESCRIPTION

The OPA633 is a monolithic unity-gain buffer ampli-

fier featuring very wide bandwidth and high slew rate.

A dielectric isolation process incorporating both NPN

and PNP high frequency transistors achieves perfor-

mance unattainable with conventional integrated cir-

cuit technology. Laser trimming provides low input

offset voltage.

High output current capability allows the OPA633 to

drive 50Ω and 75Ω lines, making it ideal for RF, IF

and video applications. Low phase shift allows the

OPA633 to be used inside amplifier feedback loops.

OPA633 is available in a low cost plastic DIP package

specified for 0°C to +75°C operation.

FEATURES

● WIDE BANDWIDTH: 260MHz

● HIGH SLEW RATE: 2500V/

µs

● HIGH OUTPUT CURRENT: 100mA

● LOW OFFSET VOLTAGE: 1.5mV

● REPLACES HA-5033

● IMPROVED PERFORMANCE/PRICE:

LH0033, LTC1010, H0S200

APPLICATIONS

● OP AMP CURRENT BOOSTER

● VIDEO BUFFER

● LINE DRIVER

● A/D CONVERTER INPUT BUFFER

OUT

–V

1987 Burr-Brown Corporation PDS-699B Printed in U.S.A. October, 1993

SBOS150

Summary of content (9 pages)

PAGE 1
OPA633 ® High Speed BUFFER AMPLIFIER FEATURES APPLICATIONS ● ● ● ● ● ● ● ● WIDE BANDWIDTH: 260MHz HIGH SLEW RATE: 2500V/µs HIGH OUTPUT CURRENT: 100mA LOW OFFSET VOLTAGE: 1.5mV OP AMP CURRENT BOOSTER VIDEO BUFFER LINE DRIVER A/D CONVERTER INPUT BUFFER ● REPLACES HA-5033 ● IMPROVED PERFORMANCE/PRICE: LH0033, LTC1010, H0S200 DESCRIPTION +VS The OPA633 is a monolithic unity-gain buffer amplifier featuring very wide bandwidth and high slew rate.
PAGE 2
SPECIFICATIONS ELECTRICAL At +25°C, VS = ±12V, RS = 50Ω, RL = 100Ω, and CL = 10pF, unless otherwise specified. OPA633KP PARAMETER CONDITIONS FREQUENCY RESPONSE Small Signal Bandwidth Full Power Bandwidth Slew Rate Rise Time, 10% to 90% Propagation Delay Overshoot Settling Time, 0.
PAGE 3
TYPICAL PERFORMANCE CURVES At +25°C, VS = ±12V, RS = 50Ω, RL = 100Ω, and CL = 10pF, unless otherwise specified. SMALL SIGNAL BANDWIDTH vs TEMPERATURE GAIN/PHASE vs FREQUENCY 300 6 4 290 VS = ±15V Gain (dB) θ –2 –20 θ –4 –40 –60 –6 –8 RS = 300Ω –10 RS = 50Ω Phase (degrees) 0 0 Bandwidth (MHz) 2 –80 270 VS = ±5V 260 VO = 0.25Vrms RL = 100Ω 250 –100 240 –120 –12 10 280 100 –50 1000 –25 0 RS = 1kΩ 5 2.0 4 Sine Wave Square Wave RL = 100Ω 3 2.
PAGE 4
TYPICAL PERFORMANCE CURVES (CONT) At +25°C, VS = ±12V, RS = 50Ω, RL = 100Ω, and CL = 10pF, unless otherwise specified.
PAGE 5
TYPICAL PERFORMANCE CURVES (CONT) At +25°C, VS = ±12V, RS = 50Ω, RL = 100Ω, and CL = 10pF, unless otherwise specified. VOLTAGE GAIN vs LOAD RESISTANCE GAIN ERROR vs TEMPERATURE 100 1.00 VO = 10Vp-p VO – VIN (mV) Voltage Gain (V/V) 80 VO = 1Vp-p 0.95 0.90 f = 1kHz VO = ±10V RL = 1kΩ 60 40 0.85 20 0 0.80 10 100 1k –50 10k –25 0 OUTPUT ERROR vs INPUT VOLTAGE 100 0 –20 RL = 10kΩ VOS (mV) 20 RL = 1kΩ 0 2 0 –0.4 –40 –0.6 –60 –2 –0.8 –1.
PAGE 6
APPLICATIONS INFORMATION input voltage versus frequency curves. When used to buffer an op amp’s output, the input to the OPA633 is limited, in most cases, by the op amp. When high frequency inputs can exceed safe levels, the device must be protected by limiting the power supply current. As with any high frequency circuitry, good circuit layout technique must be used to achieve optimum performance. Power supply connections must be bypassed with high frequency capacitors.
PAGE 7
+12V +15V C1 0.1µF R2 50Ω R1 180Ω VIN RG-58 OPA633 C4 0.1µF VIN Coaxial Cable R10 50Ω Pulse Generator 50Ω C1 0.1µF VOUT OPA633 R5 50Ω Termination C4 0.1µF R10 RL –15V –12V POSITIVE PULSE RESPONSE LARGE SIGNAL RESPONSE 10V STEP — RL = 1kΩ 100mV VIN 0 10V 50mV VIN VOUT 0 0 10V VOUT 0 NEGATIVE PULSE RESPONSE 10ns/div 10V STEP — RL = 100kΩ 0 VIN –100mV 10V 0 VIN VOUT 0 –50mV 10V VOUT 0 FIGURE 1. Coaxial Cable Driver Circuit. 10ns/div SMALL SIGNAL RESPONSE 0.
PAGE 8
R9 10kΩ R9 1kΩ C5 500pF R4 1kΩ R8 150Ω OPA602 C5 50pF R8 150Ω OPA602 OPA633 OPA633 G = –10 FIGURE 3. Precision High Current Buffer. FIGURE 4. Buffered Inverting Amplifier. +VS 4.7Ω +VS (a) (b) 100Ω 1µF 1µF 2.7kΩ + Input OPA633 Tantalum + Output OPA633 Input 1µF + Tantalum Output 1µF + Tantalum Tantalum 100Ω –VS 4.7Ω –VS FIGURE 5. Output Protection Circuits.
PAGE 9
IMPORTANT NOTICE Texas Instruments and its subsidiaries (TI) reserve the right to make changes to their products or to discontinue any product or service without notice, and advise customers to obtain the latest version of relevant information to verify, before placing orders, that information being relied on is current and complete.