OPA641H BURR-BROWN [Burr-Brown Corporation], OPA641H Datasheet
OPA641H
Related parts for OPA641H
OPA641H Summary of contents
Page 1
Wideband Voltage Feedback OPERATIONAL AMPLIFIER FEATURES GAIN-BANDWIDTH: 1.6GHz STABLE IN GAINS 2 LOW DIFFERENTIAL GAIN/PHASE ERRORS: 0.015%/0.006 HIGH SLEW RATE: 650V/ s FAST 12-BIT SETTLING: 18ns (0.01%) HIGH COMMON-MODE REJECTION: 80dB LOW HARMONICS: –72dBc at 10MHz DESCRIPTION The OPA641 ...
Page 2
... G = +2, 2V Step +2, 2V Step 1.4V 150 0.015 1.4V 150 0.006 0.1 = 2Vp 2Vp Load 2.6 3 100 L 2.25 2.5 2.0 2 1MHz +2V/V 0.04 2 OPA641HSQ, PB, UB MAX MIN TYP MAX UNITS 1.0 2.5 * 2.0 1.2 4 nV/ Hz ...
Page 3
... Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems. OPA641H CONDITIONS MIN ...
Page 4
TYPICAL PERFORMANCE CURVES 100 , C = 2pF 402 PSR, CMR vs TEMPERATURE OL 90 +PSR 80 CMR 70 –PSR 60 A ...
Page 5
TYPICAL PERFORMANCE CURVES 100 , C = 2pF 402 RECOMMENDED ISOLATION RESISTANCE vs CAPACITIVE LOAD FOR ...
Page 6
TYPICAL PERFORMANCE CURVES 100 , C = 2pF 402 CLOSED-LOOP BANDWIDTH 100k 1M 10M 100M ...
Page 7
APPLICATIONS INFORMATION DISCUSSION OF PERFORMANCE The OPA641 provides a level of speed and precision not previously attainable in monolithic form. Unlike current feedback amplifiers, the OPA641’s design uses a “Classi- cal” operational amplifier architecture and can therefore be used in ...
Page 8
A longer feedback path than this will decrease the realized bandwidth substantially. 6) Due to the extremely high bandwidth of the OPA641, the SOIC package is strongly recommended due its low para- sitic impedance. The ...
Page 9
Many demanding high-speed applications such as ADC/DAC buffers require op amps with low wideband output impedance. For example, low output impedance is essential when driving the signal-dependent capacitances at the inputs of flash A/D converters. As shown in Figure 3, ...
Page 10
Settling time, specified in an inverting gain of one, occurs in only 18ns to 0.01% for a 2V step, making the OPA641 one of the fastest settling monolithic amplifiers commercially available. Settling time increases with closed-loop gain and output voltage ...
Page 11
NOISE FIGURE The OPA641 voltage and current noise spectral densities are specified in the Typical Performance Curves. For RF appli- cations, however, Noise Figure (NF) is often the preferred noise specification since it allows system noise performance to be more ...
Page 12
APPLICATIONS 402 Video Input FIGURE 8. Video Gain Amplifier. R 200 G FIGURE 9. Wideband, Fast-Settling Instrumentation Amplifier Differential R 200 G Input Differential Voltage Gain = 10V FIGURE 10. ...
Page 13
Differential OPA641 Input 200 402 FIGURE 11. Difference Amplifier with Gain. Input R S OPA641 402 499 100 FIGURE 12. Gain Amplifier for ADCs (G = +5V/V). (–) Single- (+) Ended Output High Speed NOTE: (1) Select J ...