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PDF OPA2682 Data sheet ( Hoja de datos )
| Número de pieza | OPA2682 | |
| Descripción | Dual / Wideband / Fixed Gain BUFFER AMPLIFIER With Disable | |
| Fabricantes | Burr-Brown | |
| Logotipo |  |
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®
OPA2682
OPA2682
OPA2682
For most current data sheet and other
product information, visit www.burr-brown.com
TM Dual, 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
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 OPA2682 provides an easy to use, broadband fixed
gain, dual buffer amplifier. Depending on the external con-
nections, the internal resistor network may be used to pro-
vide 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 OPA2682 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 minimal headroom and crossover distortion. This
gives exceptional single supply operation. Using a single
+5V supply, the OPA2682 can deliver a 1V to 4V output
swing with over 100mA drive current and 200MHz band-
width. This combination of features makes the OPA2682 an
ideal RGB line driver or single-supply ADC input driver.
The OPA2682’s low 6mA/ch supply current is precisely
trimmed at 25°C. This trim, along with low drift over tempera-
ture, 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
OPA2682 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.
OPA2682 RELATED PRODUCTS
Voltage Feedback
SINGLES
OPA680
DUALS
OPA2680
Current Feedback
Fixed Gain
OPA681
OPA682
OPA2681
OPA2682
TRIPLES
OPA3680
OPA3681
OPA3682
V1 1/2
OPA2682
400Ω
400Ω
400Ω
400Ω
1/2
OPA2682
V2
249Ω
249Ω
OPA680
499Ω
499Ω
VOUT = 2 • (V1 – V2)
High-Speed Instrumentation
Differential 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-1477B
Printed in U.S.A. October, 1999
1 page  
SPECIFICATIONS: VS = +5V (Cont.)
G = +2 (–IN grounded though 0.1µF) and RL = 100Ω to VCM = 2.5V (Figure 2 for AC performance only), unless otherwise noted.
OPA2682U, 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
U SO-8
N SO-14
CONDITIONS
SO-14 Only
VDIS = 0, Both Channels
G = +2, 5MHz
G = +2, RL = 150Ω, VIN = VCM
G = +2, RL = 150Ω, VIN = VCM
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)
–540
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 V typ C
12 12 12
V max A
4.8 5.3 5.4 5.4 mA/chan max A
4.8 4.1 3.7 3.6 mA/chan min A
48 dB typ C
–40 to +85
125
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 OPA2682
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
–3
1/2
57.6Ω 806Ω OPA2682
–6
–9
–12
–15
0
400Ω
0.1µF
400Ω
RS CL
VO
1kΩ
(1kΩ is optional)
100MHz
CL = 22pF
CL = 100pF
200MHz
Frequency (20MHz/div)
®
11 OPA2682
11 Page | ||
| Páginas | Total 19 Páginas | |
| PDF Descargar | [ Datasheet OPA2682.PDF ] | |
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