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參數資料
| 型號： | AD8137YRZ-REEL7 |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 運動控制電子 |
| 英文描述： | Low Cost, Low Power 12-Bit Differential ADC Driver |
| 中文描述： | OP-AMP, 2600 uV OFFSET-MAX, PDSO8 |
| 封裝： | ROHS COMPLIANT, MS-012AA, SOIC-8 |
| 文件頁數： | 1/24頁 |
| 文件大小： | 594K |
| 代理商： | AD8137YRZ-REEL7 |
Low Cost, Low Power 12-Bit
Differential ADC Driver
AD8137
FEATURES
Rev.
A
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.326.8703
2004 Analog Devices, Inc. All rights reserved.
www.analog.com
Fully differential
Extremely low power with power-down feature
2.6 mA quiescent supply current @ 5 V
450 μA in power-down mode @ 5 V
High speed
110 MHz large signal 3 dB bandwidth @ G = 1
450 V/μs slew rate
12-bit SFDR performance @ 500 kHz
Fast settling time: 100 ns to 0.02%
Low input offset voltage: ±2.6 mV max
Low input offset current: 0.45 μA max
Differential input and output
Differential-to-differential or single-ended-to-differential
operation
Rail-to-rail output
Adjustable output common-mode voltage
Externally adjustable gain
Wide supply voltage range: 2.7 V to 12 V
Available in small SOIC package
APPLICATIONS
12-bit ADC drivers
Portable instrumentation
Battery-powered applications
Single-ended-to-differential converters
Differential active filters
Video amplifiers
Level shifters
GENERAL DESCRIPTON
FUNCTIONAL BLOCK DIAGRAM
0
–IN
1
V
OCM
2
V
S+
3
+OUT
4
+IN
8
PD
7
V
S–
6
–OUT
5
AD8137
Figure 1.
R
G
= 1k
V
O, dm
= 0.1V p-p
FREQUENCY (MHz)
N
3
2
1
0
–12
–11
–10
–9
–8
–7
–6
–5
–4
–3
–2
–1
0.1
1
10
100
1000
0
G = 5
G = 10
G = 1
G = 2
Figure 2. Small Signal Response for Various Gains
The AD8137 is a low cost differential driver with a rail-to-rail
output that is ideal for driving 12-bit ADCs in systems that are
sensitive to power and cost. The AD8137 is easy to apply, and its
internal common-mode feedback architecture allows its output
common-mode voltage to be controlled by the voltage applied
to one pin. The internal feedback loop also provides inherently
balanced outputs as well as suppression of even-order harmonic
distortion products. Fully differential and single-ended-to-
differential gain configurations are easily realized by the
AD8137. External feedback networks consisting of four resistors
determine the amplifier’s closed-loop gain. The power-down
feature is beneficial in critical low power applications.
The AD8137 is manufactured on Analog Devices’ proprietary
second generation XFCB process, enabling it to achieve high
levels of performance with very low power consumption.
The AD8137 is available in the small 8-lead SOIC package and
3 mm × 3 mm LFCSP. It is rated to operate over the extended
industrial temperature range of 40°C to +125°C.
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