MAX4249

更新时间： 2024-11-30 22:55:23

品牌	Logo	应用领域
美信 - MAXIM		运算放大器
页数	文件大小	规格书
16页	240K
描述
SOT23, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps

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MAX4249 数据手册

19-1295; Rev 2; 4/98

S OT2 3 , S in g le -S u p p ly, Lo w -No is e ,

Lo w -Dis t o rt io n , Ra il-t o -Ra il Op Am p s

9–MAX4257

Ge n e ra l De s c rip t io n

____________________________Fe a t u re s

♦ Low Input Voltage Noise Density: 7.9nV/√Hz

♦ Low Input Current Noise Density: 0.5fA/√Hz

♦ Low Distortion: 0.0002% THD (1kΩ load)

The MAX4249–MAX4257 low-noise, low-distortion oper-

ational amplifiers offer Rail-to-Rail outputs and single-

supply operation down to 2.4V. They draw only 400µA

of quiescent supply current per amplifier while featuring

ultra-low distortion (0.0002% THD), as well as low input

voltage noise density (7.9nV/√Hz) and low input current

noise density (0.5fA/√Hz). These features make the

devices an ideal choice for portable/battery-powered

applications that require low distortion and/or low noise.

♦ 400µA Quiescent Supply Current per Amplifier

♦ Single-Supply Operation from +2.4V to +5.5V

♦ Input Common-Mode Voltage Range Includes

Ground

♦ Outputs Swing within 8mV of Rails with a 10kΩ Load

For a d d itiona l p owe r c ons e rva tion, the MAX4249/

MAX4251/MAX4253/MAX4256 offer a low-power shut-

down mode that reduces supply current to 0.5µA and

puts the amplifiers’ outputs into a high-impedance state.

The MAX4249–MAX4257’s outputs swing rail-to-rail and

the ir inp ut c ommon-mod e volta g e ra ng e inc lud e s

ground. The MAX4250–MAX4254 are unity-gain stable;

the MAX4249/MAX4255/MAX4256/MAX4257 are internal-

ly compensated for gains of 10V/V or greater. The single

MAX4250/MAX4255 are available in a space-saving,

5-pin SOT23 package.

♦ 3MHz GBW Product, Unity-Gain Stable

(MAX4250–MAX4254)

22MHz GBW Product, Stable with A ≥ 10V/V

(MAX4249/MAX4255/MAX4256/MAX4257)

♦ Excellent DC Characteristics:

= 70µV

= 1pA

BIAS

Large-Signal Voltage Gain = 116dB

♦ Low-Power Shutdown Mode:

Reduces Supply Current to 0.5µA

Places Outputs in a High-Impedance State

Ap p lic a t io n s

Portable/Battery-Powered Equipment

Medical Instrumentation

ADC Buffers

♦ 400pF Capacitive-Load Handling Capability

♦ Available in Space-Saving SOT23 and µMAX

Packages

Ord e rin g In fo rm a t io n

Digital Scales

Strain Gauges

PIN-

SOT

PART

TEMP. RANGE

PACKAGE TOP MARK

Sensor Amplifiers

MAX4249ESD

-40°C to +85°C 14 SO

—

Portable Communications Devices

MAX4249EUB

-40°C to +85°C 10 µMAX

Pin Configurations and Typical Operating Circuit appear at

end of data sheet.

MAX4250EUK-T -40°C to +85°C 5 SOT23-5

ACCI

Ordering Information continued at end of data sheet.

S e le c t o r Gu id e

GAIN

BANDWIDTH

(MHz)

MINIMUM

STABLE

GAIN (V/V)

NO. OF AMPLIFIERS

PER PACKAGE

SHUTDOWN

MODE

PART

PACKAGES

MAX4249

MAX4250

MAX4251

MAX4252

MAX4253

MAX4254

MAX4255

MAX4256

MAX4257

Yes

—

10-pin µMAX, 14-pin SO

5-pin SOT23

Yes

—

8-pin µMAX/SO

10-pin µMAX, 14-pin SO

14-pin SO

Yes

—

5-pin SOT23

Yes

—

8-pin µMAX/SO

Rail-to-Rail is a registered trademark of Nippon Motorola Ltd.

________________________________________________________________ Maxim Integrated Products

For free samples & the latest literature: http://www.maxim-ic.com, or phone 1-800-998-8800.

For small orders, phone 408-737-7600 ext. 3468.

12 3 4 5 6 7...16

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与MAX4249相关器件

型号	品牌	获取价格	描述	数据表
MAX4249_11	MAXIM	获取价格	UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps
MAX4249ESD	MAXIM	获取价格	SOT23, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps
MAX4249ESD+	MAXIM	获取价格	UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps
MAX4249ESD+T	MAXIM	获取价格	Operational Amplifier, 2 Func, 750uV Offset-Max, BICMOS, PDSO14, 0.150 INCH, SOIC-14
MAX4249ESD-T	MAXIM	获取价格	暂无描述
MAX4249EUB	MAXIM	获取价格	SOT23, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps
MAX4249EUB+	MAXIM	获取价格	UCSP, Single-Supply, Low-Noise, Low-Distortion, Rail-to-Rail Op Amps
MAX4249EUB+T	MAXIM	获取价格	暂无描述
MAX4249EUB-T	MAXIM	获取价格	Operational Amplifier, 2 Func, 750uV Offset-Max, BICMOS, PDSO10, MICRO, MO-187C-BA, SOP-10
MAX425	MAXIM	获取价格

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