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參數(shù)資料
| 型號： | MAX9939AUB+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 1/15頁 |
| 文件大小： | 0K |
| 描述： | IC AMP PGA SPI VOS I/O 10MSOP |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 50 |
| 放大器類型： | 可編程增益 |
| 電路數(shù)： | 2 |
| 輸出類型： | 差分 |
| 轉(zhuǎn)換速率： | 9 V/µs |
| 增益帶寬積： | 2.15MHz |
| 電流 - 輸入偏壓： | 1pA |
| 電壓 - 輸入偏移： | 1500µV |
| 電流 - 電源： | 3.4mA |
| 電流 - 輸出 / 通道： | 70mA |
| 電壓 - 電源，單路/雙路(±)： | 2.9 V ~ 5.5 V |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 10-TFSOP，10-MSOP（0.118"，3.00mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 10-µMAX |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁面： | 1392 (CN2011-ZH PDF) |
19-4329; Rev 3; 12/12
MAX9939
SPI Programmable-Gain Amplifier
with Input VOS Trim and Output Op Amp
For pricing, delivery, and ordering information, please contact Maxim Direct
at 1-888-629-4642, or visit Maxim’s website at www.maximintegrated.com.
General Description
The MAX9939 is a general-purpose, differential-input
programmable-gain amplifier (PGA) that is ideal for con-
ditioning a variety of wide dynamic range signals such
as those found in motor current-sense, medical instru-
mentation, and sonar data acquisition applications. It
features programmable differential gains from 0.2V/V to
157V/V, input offset-voltage compensation, and an out-
put amplifier that can be configured either as a high-
order active filter or to provide a differential output.
The PGA is optimized for high-signal bandwidth and its
gain can be programmed to be 0.2V/V, 1V/V, 10V/V,
20V/V, 30V/V, 40V/V, 60V/V, 80V/V, 119V/V, and 157V/V.
Precision resistor matching provides extremely low gain
tempco and high CMRR. Although the MAX9939 oper-
ates from a single supply VCC between 2.9V to 5.5V, it
can process signals both above and below ground due
to the use of an input level-shifting amplifier stage.
Furthermore, its inputs are protected to ±16V, allowing it
to withstand fault conditions and signal overranges.
The output amplifier is designed for high bandwidth
and low-bias currents, making it ideal for use in multi-
ple-feedback active filter topologies that offer much
higher Qs and stopband attenuation than Sallen-Key
architectures.
The MAX9939 draws 3.4mA of quiescent supply current
at 5V, and includes a software-programmable shut-
down mode that reduces its supply current to only
13A. The MAX9939 is available in a 10-pin MAX
package and operates over the -40°C to +125°C auto-
motive temperature range.
Applications
Sensorless Motor Control
Medical Signal Conditioning
Sonar and General Purpose Data Acquisition
Differential to Single-Ended Conversion
Differential-Input, Differential-Output Signal
Amplification
Sensor Interface and Signal Processing
Features
o SPI-Programmable Gains: 0.2V/V to 157V/V
o Extremely Low Gain Tempco
o Integrated Amplifier for R/C Programmable Active
Filter
o Input Offset-Voltage Compensation
o Input Protection to ±16V
o 13A Software Shutdown Mode
o -40°C to +125°C Operating Temperature Range
o 10-Pin MAX Package
Ordering Information
PART
TEMP RANGE
PIN-PACKAGE
MAX9939AUB+
-40°C to +125°C
10 MAX
MAX9939AUB/V+T
-40°C to +125°C
10 MAX
/V denotes an automotive-qualified part.
+
Denotes a lead(Pb)-free/RoHS-compliant package.
Functional Diagram appears at end of data sheet.
MAX is a registered trademark of Maxim Integrated Products, Inc.
1
2
3
4
5
10
9
8
7
6
VCC
OUTA
INB
INA-
GND
DIN
SCLK
MAX9939
MAX
TOP VIEW
OUTB
INA+
CS
+
Pin Configuration
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9939AUB/GG8 | 制造商:Maxim Integrated Products 功能描述:SPI-PROGRAMMABLE GAIN AMPLIFIER (PG - Rail/Tube |
| MAX9939AUB/GH9 | 制造商:Maxim Integrated Products 功能描述:SPI-PROGRAMMABLE GAIN AMPLIFIER - Rail/Tube |
| MAX9939AUB/V+ | 功能描述:特殊用途放大器 SPI-Programmable Gain Amplifier (PGA) with Input VOS Trim and Output Op Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| MAX9939AUB/V+T | 功能描述:特殊用途放大器 SPI-Programmable Gain Amplifier (PGA) with Input VOS Trim and Output Op Amp RoHS:否 制造商:Texas Instruments 通道數(shù)量:Single 共模抑制比（最小值）: 輸入補(bǔ)償電壓: 工作電源電壓:3 V to 5.5 V 電源電流:5 mA 最大功率耗散: 最大工作溫度:+ 70 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-20 封裝:Reel |
| MAX9939AUB+ | 功能描述:電流靈敏放大器 SPI-Programmable Gain Amplifier RoHS:否 制造商:Texas Instruments 通道數(shù)量: 共模抑制比（最小值）:110 dB 輸入補(bǔ)償電壓:80 uV 電源電壓-最大:5.5 V 電源電壓-最小:2.7 V 電源電流:350 uA 最大工作溫度:+ 125 C 最小工作溫度:- 40 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-16 封裝:Reel |
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