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PDF OPA682 Data sheet ( Hoja de datos )
| Número de pieza | OPA682 | |
| Descripción | Wideband / Fixed Gain BUFFER AMPLIFIER With Disable | |
| Fabricantes | Burr-Brown | |
| Logotipo |  |
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®
OPA682
OPA682
OPA682
OPA682
TM 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
q LOW DISABLED CURRENT: 320µA
q HIGH OUTPUT CURRENT: 150mA
q OUTPUT VOLTAGE SWING: ±4.0V
q ±5V OR SINGLE +5V OPERATION
q SOT23-6 AVAILABLE
APPLICATIONS
q BROADBAND VIDEO LINE DRIVERS
q VIDEO MULTIPLEXERS
q MULTIPLE LINE VIDEO DA
q PORTABLE INSTRUMENTS
q ADC BUFFERS
q ACTIVE FILTERS
DESCRIPTION
The OPA682 provides an easy to use, broadband fixed gain
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 supply current, the
OPA682 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 a mini-
mal headroom and crossover distortion. This gives excep-
tional single supply operation. Using a single +5V supply,
the OPA682 can deliver a 1V to 4V output swing with over
100mA drive current and 200MHz bandwidth. This combi-
nation of features makes the OPA682 an ideal RGB line
driver or single supply ADC input driver.
The OPA682’s low 6mA 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 temperature 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
OPA682 supply current drops to less than 320µA while the
output goes into a high impedance state. This feature may be
used for either power savings or for video MUX applications.
OPA682 RELATED PRODUCTS
Voltage Feedback
SINGLES
OPA680
DUALS
OPA2680
Current Feedback
Fixed Gain
OPA681
OPA682
OPA2681
OPA2682
TRIPLES
OPA3680
OPA3681
OPA3682
OPA682
Video
In
1
2
75Ω –5V
3
4
8 DIS
7 +5V
6
5
8-Pin DIP, SO-8
G = +2
75Ω
RG-59
75Ω
RG-59
75Ω
RG-59
75Ω
RG-59
240MHz, 4-Output Component Video D/A
Video
Out
75Ω
75Ω
75Ω
75Ω
nternational 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
©1999 Burr-Brown Corporation
PDS-1428C
Printed in U.S.A. September, 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.
OPA682P, U, N
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
Min Quiescent Current
Power Supply Rejection Ratio (+PSRR)
TEMPERATURE RANGE
Specification: P, U, N
Thermal Resistance, θJA
P 8-Pin DIP
U SO-8
N SOT23-6
CONDITIONS
VDIS = 0
G = +2, 5MHz
G = +2, RL = 150Ω, VIN = 2.5V
G = +2, RL = 150Ω, VIN = 2.5V
VDIS = 0
VS = +5V
VS = +5V
Input Referred
+25°C
–270
100
25
65
4
±50
±20
3.3
1.8
100
+25°C
3.5
1.7
0°C to
70°C
–40°C to
+85°C
MIN/ TEST
UNITS MAX LEVEL(2)
µA typ C
ns typ C
ns typ C
dB typ C
pF typ C
mV typ B
mV typ B
3.6 3.7
V min B
1.6 1.5
V max B
µA typ C
5 V typ C
12 12 12
V max A
4.8 5.3 5.4 5.4 mA max A
4.8 4.1 3.7 3.6 mA min A
50 dB typ C
–40 to +85
100
125
150
°C typ C
°C/W 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 OPA682
5 Page 
TYPICAL PERFORMANCE CURVES: VS = +5V
G = +2 and RL = 100Ω to VCM = +2.5V, 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
2.10
2.9
2.8
2.7
2.6
2.5
2.4
2.3
2.2
2.1
2.0
SMALL-SIGNAL PULSE RESPONSE
VO = 0.5Vp-p
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 OPA682
400Ω
RS CL
VO
1kΩ
0.1µF
400Ω
(1kΩ is optional)
CL = 100pF
100MHz
200MHz
Frequency (20MHz/div)
®
11 OPA682
11 Page | ||
| Páginas | Total 20 Páginas | |
| PDF Descargar | [ Datasheet OPA682.PDF ] | |
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