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PDF OPA3682 Data sheet ( Hoja de datos )
| Número de pieza | OPA3682 | |
| Descripción | Triple / Wideband / Fixed Gain BUFFER AMPLIFIER With Disable | |
| Fabricantes | Burr-Brown | |
| Logotipo |  |
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®
OPA3682
OPA3682
For most current data sheet and other product
information, visit www.burr-brown.com
OPA3682
TM Triple, Wideband, Fixed Gain
BUFFER AMPLIFIER With Disable
FEATURES
q INTERNALLY FIXED GAIN: +2 or ±1
q HIGH BANDWIDTH (G = +2): 240MHz
q LOW SUPPLY CURRENT: 6mA/ch
q LOW DISABLED CURRENT: 320µA/ch
q HIGH OUTPUT CURRENT: 150mA
q OUTPUT VOLTAGE SWING: ±4.0V
q ±5V OR SINGLE +5V OPERATION
q IMPROVED HIGH FREQUENCY PINOUT
DESCRIPTION
The OPA3682 provides an easy-to-use, broadband fixed
gain, triple buffer amplifier. Depending on the external
connections, the internal resistor network may be used to
provide either a fixed gain of +2 video buffer, or a gain
of +1 or –1 voltage buffer. Operating on a very low
6mA/ch supply current, the OPA3682 offers a slew rate
and output power normally associated with a much
higher supply current. A new output stage architecture
delivers high output current with minimal headroom and
crossover distortion. This gives exceptional single-sup-
ply operation. Using a single +5V supply, the OPA3682
can deliver a 1V to 4V output swing with over 100mA
drive current and 200MHz bandwidth. This combination
of features makes the OPA3682 an ideal RGB line driver
or single-supply, triple ADC input driver.
The OPA3682’s low 6mA/ch supply current is precisely
trimmed at 25°C. This trim, along with low drift over
temperature, guarantees lower maximum supply current
than competing products that report only a room tempera-
ture nominal supply current. System power may be further
reduced by using the optional disable control pin. Leaving
this disable pin open, or holding it high, gives normal
operation. If pulled low, the OPA3682 supply current drops
to less than 320µA/ch while the output goes into a high
impedance state. This feature may be used for either power
savings or for video MUX applications.
APPLICATIONS
q RGB VIDEO LINE DRIVER
q VIDEO MULTIPLEXERS
q MULTIPLE LINE VIDEO D/As
q PORTABLE INSTRUMENTS
q ADC BUFFERS
q ACTIVE FILTERS
q WIDEBAND DIFFERENTIAL RECEIVERS
OPA3682 RELATED PRODUCTS
SINGLES
DUALS
Voltage Feedback
Current Feedback
Fixed Gain
OPA680
OPA681
OPA682
OPA2680
OPA2681
OPA2682
TRIPLES
OPA3680
OPA3681
OPA3682
VR
75.0Ω
VG
75.0Ω
VB
75.0Ω
400Ω
1/3
OPA3682
400Ω
75.0Ω 75Ω Cable
RG-59
400Ω
1/3
OPA3682
400Ω
75.0Ω 75Ω Cable
RG-59
400Ω
1/3
OPA3682
400Ω
75.0Ω 75Ω Cable
RG-59
Video RGB Amplifier
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/ • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132
©1998 Burr-Brown Corporation
PDS-1496B
Printed in U.S.A. June, 1999
1 page  
SPECIFICATIONS: VS = +5V (Cont.)
G = +2 (–IN grounded though 0.1µF) and RL = 100Ω to VS/2 (Figure 2 for AC performance only), unless otherwise noted.
OPA3682E, U
TYP
GUARANTEED(1)
PARAMETER
DISABLE/POWER DOWN (DIS Pin)
Power Down Supply Current (+VS)
Disable Time
Enable Time
Off Isolation
Output Capacitance in Disable
Turn On Glitch
Turn Off Glitch
Enable Voltage
Disable Voltage
Control Pin Input Bias Current (DIS)
POWER SUPPLY
Specified Single Supply Operating Voltage
Maximum Single Supply Operating Voltage
Max Quiescent Current (3 Channels)
Min Quiescent Current (3 Channels)
Power Supply Rejection Ratio (+PSRR)
TEMPERATURE RANGE
Specification: E, U
Thermal Resistance, θJA
E SSOP-16 Surface Mount
U SO-16 Surface Mount
CONDITIONS
VDIS = 0, All Channels
G = +2, 5MHz
G = +2, RL = 150Ω, VIN = 2.5V
G = +2, RL = 150Ω, VIN = 2.5V
VDIS = 0, Each Channel
VS = +5V
VS = +5V
Input Referred
+25°C
+25°C
0°C to
70°C
–40°C to
+85°C UNITS
MIN/ TEST
MAX LEVEL(2)
–810
µA typ C
100 ns typ C
25 ns typ C
65 dB typ C
4 pF typ C
±50 mV typ B
±20 mV typ B
3.3 3.5 3.6 3.7
V min A
1.8 1.7 1.6 1.5
V max A
100 µA typ C
5
12 12 12
14.4 15.9 16.2 16.2
14.4 12.3 11.1 10.8
50
V typ C
V max A
mA max A
mA min A
dB typ C
–40 to +85
100
100
°C typ C
°C/W typ C
°C/W typ C
NOTES: (1) Junction temperature = ambient temperature for low temperature limit and 25°C guaranteed specifications. Junction temperature = ambient temperature
+23°C at high temperature limit guaranteed specifications. (2) Test Levels: (A) 100% tested at 25°C. Over temperature limits by characterization and simulation.
(B) Limits set by characterization and simulation. (C) Typical value only for information. (3) Current is considered positive out-of-node. VCM is the input common-mode
voltage.
®
5 OPA3682
5 Page 
TYPICAL PERFORMANCE CURVES: VS = +5V
G = +2 and RL = 100Ω to VS /2, unless otherwise noted (see Figure 2).
2
1
0
–1
–2
–3
–4
–5
–6
–7
–8
0
SMALL-SIGNAL FREQUENCY RESPONSE
G = +2
G = +1
G = –1
250MHz
Frequency (50MHz/div)
500MHz
LARGE-SIGNAL FREQUENCY RESPONSE
8
7 RL = 100Ω to 2.5V
VO = 0.5Vp-p
6
5 VO = 1Vp-p
4 VO = 2Vp-p
3
2
1
0
–1
–2
0
125
Frequency (25MHz/div)
250
SMALL-SIGNAL PULSE RESPONSE
2.10
2.9 VO = 0.5Vp-p
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
Time (5ns/div)
LARGE-SIGNAL PULSE RESPONSE
4.5
4.1 VO = 2Vp-p
3.7
3.3
2.9
2.5
2.1
1.7
1.3
0.9
0.5
Time (5ns/div)
70
60
50
40
30
20
10
0
1
RECOMMENDED RS vs CAPACITIVE LOAD
10
Capacitive Load (pF)
100
FREQUENCY RESPONSE vs CAPACITIVE LOAD
15
12
CL = 47pF
CL = 10pF
9
6
+5V
3
806Ω
0 VIN 0.1µF
CL = 22pF
–3
–6
–9
–12
–15
0
57.6Ω 806Ω OPA3682
400Ω
RS CL
VO
1kΩ
0.1µF
400Ω
(1kΩ is optional)
CL = 100pF
100MHz
200MHz
Frequency (20MHz/div)
®
11 OPA3682
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet OPA3682.PDF ] | |
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