OPA622AP BURR-BROWN [Burr-Brown Corporation], OPA622AP Datasheet

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OPA622AP

Manufacturer Part Number
OPA622AP
Description
Wide-Bandwidth OPERATIONAL AMPLIFIER
Manufacturer
BURR-BROWN [Burr-Brown Corporation]
Datasheet
FEATURES
DESCRIPTION
The OPA622 is a monolithic amplifier component
designed for precision wide-bandwidth systems
including high-resolution video, RF and IF circuitry,
and communications equipment. It includes a mono-
lithic integrated current-feedback operational
amplifier block and a voltage buffer block, which,
when combined, form a voltage-feedback operational
amplifier.
When combined as a current-feedback amplifier, it
provides a 280MHz large-signal bandwidth at 2.5V
output level and a 1700V/ s slew rate. The output
buffer stage can deliver 70mA output current. The
high output current capability allows the OPA622 to
drive two 50
making it ideal along with the low differential
gain/phase errors for RF, IF, and video applications.
International Airport Industrial Park
© 1991 Burr-Brown Corporation
Tel: (520) 746-1111
V
LARGE SIGNAL BANDWIDTH:
150MHz (AP), 200MHz (AU)
(Voltage-Feedback)
HIGH OUTPUT CURRENT: 70mA
SLEW RATE: 1500V/ s (AP), 1700V/ s (AU)
DIFFERENTIAL GAIN: 0.15%
DIFFERENTIAL PHASE: 0.08
EXCELLENT BANDWIDTH/SUPPLY
CURRENT RATIO: 200MHz/5mA
LOW INPUT BIAS CURRENT: –1.2 A
IN
50
R
R
IN
1
or 75
Adjust
I
Twx: 910-952-1111
–In
+In
Q
3
4
OPA622
2
lines with 3V output swing,
VFA
–5V
®
R
OPERATIONAL AMPLIFIER
13
BUF+
Q
R
2
R
BUF–
Mailing Address: PO Box 11400
OG
10
C
OTA
8
VOLTAGE-FEEDBACK
9
Cable: BBRCORP
Wide-Bandwidth
50
V
OUT
Telex: 066-6491
PDS-1131E
Tucson, AZ 85734
The feedback buffer stage provides 700MHz band-
width, a very high slew rate, and a very short signal
delay time. It is designed primarily for interstage
buffering and not for driving long cables. When com-
bined with the current-feedback amplifier section, the
OPA622 can be interconnected as a voltage-feedback
amplifier with two identical high-impedance inputs.
In this configuration, it features a low common-mode
gain, low input offset, and, due to the delay time of the
additional feedback buffer, a decrease in frequency
bandwidth compared with the current-feedback
configuration. Unlike “classical” operational amplifi-
ers, the OPA622 achieves a nearly constant bandwidth
over a wide gain and output voltage range. The
external setting of the open-loop gain with R
a large compensation capacitor, improves the slew
rate, and allows a frequency response adaption to
various gains and load conditions.
APPLICATIONS
V
IN
BROADCAST/HDTV EQUIPMENT
COMMUNICATIONS
PULSE/RF AMPLIFIERS
ACTIVE FILTER
HIGH SPEED ANALOG SIGNAL
PROCESSING
MULTIPLIER OUTPUT AMP
DIFFERENTIATOR FOR DIGITIZED
VIDEO SIGNALS
FAX: (520) 889-1510
• Street Address: 6730 S. Tucson Blvd.
50
R
R
IN
1
BUF+
Adjust
I
+In
Q
13
4
OPA622
2
Immediate Product Info: (800) 548-6132
CFA
–5V
R
R
Q
2
10
3
C
Printed in U.S.A. March, 1995
100
OTA
CURRENT-FEEDBACK
OPA622
9
• Tucson, AZ 85706
50
OG
avoids
V
OUT

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OPA622AP Summary of contents

Page 1

Wide-Bandwidth OPERATIONAL AMPLIFIER FEATURES LARGE SIGNAL BANDWIDTH: 150MHz (AP), 200MHz (AU) (Voltage-Feedback) HIGH OUTPUT CURRENT: 70mA SLEW RATE: 1500V/ s (AP), 1700V/ s (AU) DIFFERENTIAL GAIN: 0.15% DIFFERENTIAL PHASE: 0.08 EXCELLENT BANDWIDTH/SUPPLY CURRENT RATIO: 200MHz/5mA LOW INPUT BIAS CURRENT: ...

Page 2

... I = 0mA 4 Useful Range 0mA O Ambient Temperature –40 Ambient Temperature –40 ORDERING INFORMATION MODEL to 0.7V OPA622AP CC OPA622AU . CC PACKAGE DRAWING (1) NUMBER 010 235 2 = +25 C, unless otherwise specified. A OPA622AP, AU TYP MAX UNITS 210 V/ C –50 dB –43 dB –51 dB –1 nA nA/V 170 nA/V 58 nA/V 0 ...

Page 3

... Third Harmonic 3f GAIN FLATNESS PEAKING TIME DOMAIN Rise Time Fall Time SLEW RATE Positive Negative SETTLING TIME = 430 , R = 150 and T SOURCE Q OG OPA622AP CONDITIONS TYP V = 2.8Vp-p, Gain = +1V/V 220 2.8Vp-p, Gain = +2V/V 200 2.8Vp-p, Gain = +5V/V 170 2.8Vp-p, Gain = +10V/V ...

Page 4

DICE INFORMATION OPA622AD DIE TOPOGRAPHY PIN CONFIGURATION Top View OPA622 OTA 2 I Adjust – + – – Biasing CC OUT 7 NC ...

Page 5

TYPICAL PERFORMANCE CURVES VOLTAGE-FEEDBACK AMPLIFIER (Figure 5V 5mA +2V/ 100 , LOAD INPUT BIAS CURRENT vs TEMPERATURE 0 –0.2 Input Bias Offset Current –0.4 –0.6 Positive ...

Page 6

TYPICAL PERFORMANCE CURVES VOLTAGE-FEEDBACK AMPLIFIER (Figure 5V 5mA +2V/ 100 , LOAD COMMON-MODE REJECTION vs COMMON-MODE INPUT VOLTAGE –5 –55 –60 –65 –70 –75 –80 –85 ...

Page 7

TYPICAL PERFORMANCE CURVES VOLTAGE-FEEDBACK AMPLIFIER (Figure 5V 5mA +2V/ 100 , LOAD SMALL SIGNAL PULSE RESPONSE 160 120 –40 –80 –120 G = ...

Page 8

TYPICAL PERFORMANCE CURVES VOLTAGE-FEEDBACK AMPLIFIER (Figure 5V 5mA +2V/ 100 , LOAD BANDWIDTH vs OUTPUT VOLTAGE 20 5Vp-p 15 2.8Vp 1.4Vp-p 0 0.6Vp-p –5 ...

Page 9

TYPICAL PERFORMANCE CURVES VOLTAGE-FEEDBACK AMPLIFIER (Figure 5V 5mA +2V/ 100 , LOAD HARMONIC DISTORTION vs FREQUENCY +2V/ 2.8Vp- OUT ...

Page 10

INPUT PROTECTION The need for protection from static damage has long been recognized for MOSFET devices, but all semiconductor devices deserve protection from this potentially damaging source. The OPA622 incorporates on-chip ESD protection diodes as shown in Figure 1. These ...

Page 11

Application circuits generally do not show the resistor R , but it is required for proper operation. Q With a fixed R , the quiescent current increases with tem- Q perature (see Typical Performance Curves.) This variation of the quiescent ...

Page 12

CONFIGURATIONS VOLTAGE-FEEDBACK AMPLIFIER The OPA622’s internal design differs from a “classical” operational amplifier structure, but it can nevertheless be used in all traditional operational amplifier applications. As with conventional op amps, the feedback network connected to the inverting input controls ...

Page 13

The additional signal delay time through the feedback buffer determines the difference in AC performance between voltage and current feedback. The specifications for offset voltage, CMMR, and settling ...

Page 14

The elements R and C current source output and the output buffer form the first open-loop pole T . The signal delay time the output buffer, combines several small phase-shifting time constants and delay times. They ...

Page 15

... 390 – 200 – 120 CL OG –5 –10 –15 –20 OPA622AP V = 1.4Vp-p, Refer to Table I for –25 O recommended component values. –30 100k 1M 10M Frequency (Hz) FIGURE 11. Optimum Response vs Closed-Loop Gains – 150 OG – 300 OG – ...

Page 16

FIGURE 15. Average Supply Current vs Frequency (Square Wave). – 150 In O POS SOURCE 100 100 = NEG ( SOURCE ...

Page 17

... R is decreased and will OG roll off more gradually when R is increased. The C OG capacitor is responsible for the first open-loop pole and a small external capacitor for the gains +1V/V and +2V/V is OPA622AP 5mA 430 Q QC PLASTIC DIP G CL Component ...

Page 18

... Video Input 75 Bandwidth, (5Vp-p) = 150MHz (OPA622AP) High output current drive capability (6Vp-p into 50 ) allows three back-terminated 75 transmission lines to be simultaneously driven. FIGURE 18. Video Distribution Amplifier IN1 Wideband Multiplier Y Y – IN2 50 FIGURE 19. Wideband Multiplier Output Amplifier. ...

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