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PDF BUF601AU Data sheet ( Hoja de datos )
| Número de pieza | BUF601AU | |
| Descripción | HIGH-SPEED BUFFER AMPLIFIER | |
| Fabricantes | Burr-Brown Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de BUF601AU (archivo pdf) en la parte inferior de esta página. Total 14 Páginas | ||
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®
BUF600
BUF600
BUF601
BUF600
BUF601
HIGH-SPEED BUFFER AMPLIFIER
FEATURES
q OPEN-LOOP BUFFER
q HIGH-SLEW RATE: 3600V/µs, 5.0Vp-p
q BANDWIDTH: 320MHz, 5.0Vp-p
900MHz, 0.2Vp-p
q LOW INPUT BIAS CURRENT: 0.7µA/1.5µA
q LOW QUIESCENT CURRENT: 3mA/6mA
q GAIN FLATNESS: 0.1dB, 0 to 300MHz
DESCRIPTION
The BUF600 and BUF601 are monolithic open-loop
unity-gain buffer amplifiers with a high symmetrical
slew rate of up to 3600V/µs and a very wide band-
width of 320MHz at 5Vp-p output swing. They use a
complementary bipolar IC process, which incorpo-
rates pn-junction isolated high-frequency NPN and
PNP transistors to achieve high-frequency performance
previously unattainable with conventional integrated
circuit technology.
Their unique design offers a high-performance alter-
native to expensive discrete or hybrid solutions.
The BUF600 and BUF601 feature low quiescent
current, low input bias current, small signal delay time
and phase shift, and low differential gain and phase
errors.
The BUF600 with 3mA quiescent current is well-
suited for operation between high-frequency
processing stages. It demonstrates outstanding perfor-
mance even in feedback loops of wide-band amplifiers
or phase-locked loop systems.
APPLICATIONS
q VIDEO BUFFER/LINE DRIVER
q INPUT/OUTPUT AMPLIFIER FOR
MEASUREMENT EQUIPMENT
q PORTABLE SYSTEMS
q TRANSMISSION SYSTEMS
q TELECOMMUNICATIONS
q HIGH-SPEED ANALOG SIGNAL
PROCESSING
q ULTRASOUND
The BUF601, with 6mA quiescent current and there-
fore lower output impedance, can easily drive 50Ω
inputs or 75Ω systems and cables.
The broad range of analog and digital applications
extends from decoupling of signal processing stages,
impedance transformation, and input amplifiers for
RF equipment and ATE systems to video systems,
distribution fields, IF/communications systems, and
output drivers for graphic cards.
V+ = +5V
(1)
VIN
(4)
Bias
Circuitry
BUFFER
VOUT
(8)
Simplified Circuit Diagram
V– = –5V
(5)
International Airport Industrial Park • Mailing Address: PO Box 11400, Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd., Tucson, AZ 85706 • Tel: (520) 746-1111 • Twx: 910-952-1111
Internet: http://www.burr-brown.com/ • FAXLine: (800) 548-6133 (US/Canada Only) • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
© 1991 Burr-Brown Corporation
PDS-1128F
BUFP6rin0te0d ,in U6.S0.A1. March, 1998
®
1 page  
TYPICAL PERFORMANCE CURVES (CONT)
At VCC = ±5V, RLOAD = 10kΩ, and TA = 25°C, unless otherwise noted.
INPUT VOLTAGE NOISE
SPECTRAL DENSITY BUF600/601
100
10
1
100
BUFF600
BUFF601
1000
10k
Frequency (Hz)
100k
QUIESCENT CURRENT vs TEMPERATURE
12
10
BUF601
8
6
BUF600
4
2
0
–40
–20
0 20 40 60
Temperature (°C)
80
100
BUF600 TRANSFER FUNCTION
5
4 BUF600 RLOAD = 200Ω
3
2
1
0
–1
–2
–3
–4
–5
–5 –4 –3 –2 –1 0 1 2 3 4 5
Input Voltage (V)
BUF601 TRANSFER FUNCTION
5
4 BUF601 RLOAD = 100Ω
3
2
1
0
–1
–2
–3
–4
–5
–5 –4 –3 –2 –1 0 1 2 3 4 5
Input Voltage (V)
BUF600 GAIN ERROR vs INPUT VOLTAGE
14
(Full Temperature Range, RLOAD = 200Ω)
12
–40°C
10
+25°C
8
85°C
6
4
2
0
–5 –4 –3 –2 –1 0 1 2 3 4
Input Voltage (V)
5
BUF601 GAIN ERROR vs INPUT VOLTAGE
14
(Full Temperature Range, RLOAD = 100Ω)
12
–40°C
10 +25°C
+85°C
8
6
4
2
0
–5 –4 –3 –2 –1 0 1 2 3 4
Input Voltage (V)
5
®
5 BUF600, 601
5 Page 
Direct Drive
+5V
AV =
ZO
ZO + RO
1
VI
4 BUF 8
ZO
VO
150Ω
5
ZO ZO
–5V
+5V
ROUT = ZO – RO
1
VI
4 BUF 8
ZO
VO
150Ω
5 ROUT
ZO ZO
–5V AV = – 6dB
Double Matched
FIGURE 4. Driving Cables.
DRIVING CABLES
The most obvious way is to connect the cable directly to the
output of the buffer. This results in a gain determined by the
buffer output resistance and the characteristic impedance of
the cable, assuming it is properly terminated.
Double termination of a cable is the cleanest way to drive it,
since reflections are absorbed on both ends of the cable. The
cable source resistor is equal to the characteristic impedance
less the output resistance of the buffer amplifiers. The gain
is –6dB excluding of the cable attenuation.
VIDEO DISTRIBUTION AMPLIFIER
In this broadcast quality circuit, the OPA623 provides a very
high input impedance so that it may be used with a wide
variety of signal sources including video DACs, CCD cam-
eras, video switches or 75Ω cables. The OPA623 provides a
voltage gain of 2.5V/V, while the potentiometer of 200Ω
allows the overall gain to be adjusted to drive the standard
signal levels into the back-terminated 75Ω cables. Back
matching prevents multiple reflections in the event that the
remote end of the cable is not properly terminated.
+5V
470nF
2.2µF
120Ω
1
4 BUF601 8
5
+5V
470nF 2.2µF
68Ω
–5V
470nF 2.2µF
VO
120Ω
1
4 BUF601 8
68Ω
VO
+5V 5
VI
150Ω
37
6
OPA658
2
+5V
470nF 2.2µF
–5V
470nF 2.2µF
75Ω 4
–5V
200Ω
120Ω
1
4 BUF601 8
68Ω
VO
250Ω
100Ω
5
2.2µF
470nF
FIGURE 5. Video Distribution Amplifier.
–5V
11
BUF600, 601
®
11 Page | ||
| Páginas | Total 14 Páginas | |
| PDF Descargar | [ Datasheet BUF601AU.PDF ] | |
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