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OPA846IDR Datasheet

  • OPA846IDR

  • Wideband, Low-Noise, Voltage-Feedback OPERATIONAL AMPLIFIER

  • 388.20KB

  • 23頁

  • TI

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OPA846
OPA
846
OPA8
46
SBOS250C 鈥?JULY 2002 鈥?REVISED MAY 2003
Wideband, Low-Noise, Voltage-Feedback
OPERATIONAL AMPLIFIER
FEATURES
q
q
q
q
q
q
q
q
HIGH BANDWIDTH: 400MHz (G = +10)
LOW INPUT VOLTAGE NOISE: 1.2nV/
鈭欻z
VERY LOW DISTORTION: 鈥?00dBc (5MHz)
HIGH SLEW RATE: 625V/
碌
s
HIGH DC ACCURACY: V
IO
鹵
150
碌
V
LOW SUPPLY CURRENT: 12.6mA
HIGH GAIN BANDWIDTH PRODUCT: 1750MHz
STABLE FOR GAINS
鈮?/div>
7
APPLICATIONS
q
HIGH DYNAMIC RANGE ADC PREAMPS
q
LOW-NOISE, WIDEBAND, TRANSIMPEDANCE
AMPLIFIERS
q
WIDEBAND, HIGH GAIN AMPLIFIERS
q
LOW-NOISE DIFFERENTIAL RECEIVERS
q
VDSL LINE RECEIVERS
q
ULTRASOUND CHANNEL AMPLIFIERS
q
SECURITY SENSOR FRONT ENDS
q
UPGRADE FOR THE OPA686, CLC425, AND
LMH6624
A new external compensation technique can be used to give
a very flat frequency response below the minimum stable
gain for the OPA846, further improving its already excep-
tional distortion performance. Using this compensation makes
the OPA846 one of the premier 12- to 16-bit Analog-to-Digital
(A/D) converter input drivers. The supply current for the
OPA846 is precisely trimmed to 12.6mA at +25擄C. This,
along with carefully defined supply current tempco in the
input and output stages, combine to provide exceptional
performance over the full specified temperature range.
DESCRIPTION
The OPA846 combines very high gain bandwidth and large
signal performance with very low input voltage noise, while
dissipating a low 12.6mA supply current. The classical differ-
ential input stage, along with two stages of forward gain and
a high power output stage, combine to make the OPA846 an
exceptionally low distortion amplifier with excellent DC accu-
racy and output drive. The voltage-feedback architecture
allows all standard op amp applications to be implemented
with very high performance.
The combination of low input voltage and current noise,
along with a 1.75GHz gain bandwidth product, make the
OPA846 an ideal amplifier for wideband transimpedance
stages. As a voltage gain stage, the OPA846 is optimized for
a flat response at a gain of +10 and is stable down to a gain
of +7.
+5V
Power-supply
decoupling not shown.
100pF
0.1碌F
50k鈩?/div>
OPA846 RELATED PRODUCTS
SINGLES
OPA842
OPA843
OPA847
INPUT NOISE
VOLTAGE (nV/
鈭欻z
)
2.4
2.0
0.85
GAIN BANDWIDTH
PRODUCT (MHz)
200
800
3900
WIDEBAND TRANSIMPEDANCE
100
20 log(50k鈩? = 94dB鈩?/div>
95
OPA846
V
O
20 鈥?log(Z
T
) [5dB/div]
90
85
80
75
70
65
60
0.1
1
10
Frequency (MHz)
100
位
I
S
10pF
Photodiode
鈥揤
B
鈥?V
50k鈩?/div>
0.2pF
High Gain, 20MHz Transimpedance Amplifier
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Copyright 漏 2002-2003, Texas Instruments Incorporated
www.ti.com

OPA846IDR 產(chǎn)品屬性

  • 2,500

  • 集成電路 (IC)

  • Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

  • -

  • 電壓反饋

  • 1

  • -

  • 625 V/µs

  • 1.75GHz

  • -

  • 10µA

  • 150µV

  • 12.6mA

  • 80mA

  • 5 V ~ 12 V，±2.5 V ~ 6 V

  • -40°C ~ 85°C

  • 表面貼裝

  • 8-SOIC（0.154"，3.90mm 寬）

  • 8-SOIC

  • 帶卷 (TR)

  • 296-19716-ND - BOARD DEMO FOR SNGL 8SOIC OPAMPS

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