參數(shù)資料
型號(hào)： OPA685U
元件分類： 運(yùn)動(dòng)控制電子
英文描述： Ultra-Wideband, Current-Feedback OPERATIONAL AMPLIFIER With Disable TM
中文描述： 超寬帶，電流反饋運(yùn)算放大器商標(biāo)使用禁用
文件頁(yè)數(shù)： 1/28頁(yè)
文件大?。?/td> 283K
代理商： OPA685U
Ultra-Wideband, Current-Feedback
OPERATIONAL AMPLIFIER With Disable
TM
DESCRIPTION
The OPA685 is a very high bandwidth, current-feed-
back op amp that combines exceptional 4200V/
μ
s slew
rate and low input voltage noise to deliver a precision
low cost, high dynamic range Intermediate Frequency
(IF) amplifier. Optimized for high gain operation, the
OPA685 is ideally suited to buffering Surface Acoustic
Wave (SAW) filters in an IF strip or delivering high
output power at low distortion for cable modem up-
stream line drivers. Even higher bandwidth at lower
gains gives a 900MHz video line driver for high
resolution workstation graphics.
The OPA685’s low 12.9mA supply current is pre-
cisely trimmed at +25
°
C. This trim, along with a low
temperature drift, guarantees low system power over-
OPA685
FEATURES
G
GAIN = +2 BANDWIDTH (900MHz)
G
GAIN = +8 BANDWIDTH (420MHz)
G
OUTPUT VOLTAGE SWING:
±
3.6V
G
ULTRA-HIGH SLEW RATE: 4200V/
μ
s
G
3RD-ORDER INTERCEPT: > 40dBm (f < 50MHz)
G
LOW POWER: 129mW
G
LOW DISABLED POWER: 3mW
APPLICATIONS
G
LOW COST PRECISION IF AMPLIFIER
G
CABLE MODEM UPSTREAM DRIVER
G
BROADBAND VIDEO LINE DRIVER
G
VERY WIDEBAND ADC BUFFER
G
PORTABLE INSTRUMENTS
G
ACTIVE FILTERS
G
ARB WAVEFORM OUTPUT DRIVER
OPA685 RELATED PRODUCTS
SINGLES
DUALS
OPA658
OPA681
OPA682
OPA2658
OPA2681
OPA2682
1999 Burr-Brown Corporation
PDS-1499A
Printed in U.S.A. April, 1999
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
temperature. System power may be further reduced
using the optional disable control pin. Leaving this pin
open, or holding it HIGH, gives normal operation. If
pulled LOW, the OPA685 supply current drops to less
than 320
μ
A. This power-savings feature, along with
exceptional single +5V operation, and ultra-small
SOT23-6 packaging, make the OPA685 ideal for por-
table communications requirements.
Low Distortion, 12dB Gain SAW Driver
OPA685
OPA685
For most current data sheet and other product
information, visit www.burr-brown.com
OPA685
SAW
Filter
+5V
–5V
Matching
Network
50
Source
50
50
400
50
50
40
30
20
10
Center Frequency (MHz)
0
50
150
250
200
100
TWO-TONE, 3rd-ORDER
INTERMODULATION INTERCEPT
O
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
OPA685U/2K5 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Current-Feedback Operational Amplifier
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OPA686N 制造商:BB 制造商全稱:BB 功能描述:Wideband, Low Noise, Voltage Feedback OPERATIONAL AMPLIFIER
OPA686N/250 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Texas Instruments 功能描述:
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