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參數(shù)資料
| 型號(hào)： | MAX9939AUB+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 2/15頁 |
| 文件大?。?/td> | 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) |
MAX9939
SPI Programmable-Gain Amplifier
with Input VOS Trim and Output Op Amp
10
Maxim Integrated
Differential-Input, Differential-Output PGA
The output amplifier can be configured so that the
MAX9939 operates as a differential-input, differential-
output programmable gain amplifier. As shown in
Figure 4, use a 10k
resistor between OUTA and INB,
and between INB and OUTB. Such a differential-output
configuration is ideal for use in low-voltage applications
that can benefit from the 2X output voltage dynamic
range when compared to single-ended output format.
Use of Output Operational Amplifier as TIA
CMOS inputs on the output op amp makes it ideal for
use as an input transimpedance amplifier (TIA) in cer-
tain current-output sensor applications. In such a situ-
ation, keep in mind that the inverting input operates at
fixed voltage of VCC/2. Use a high-value resistor as a
feedback gain element, and use a feedback capacitor
in parallel with this resistor if necessary to aid amplifi-
er stability in the presence of high photodiode or
cable capacitance. The output of this TIA can be rout-
ed to INA+ or INA- for further processing and signal
amplification.
Power-Supply Bypassing
Bypass VCC to GND with a 0.1F capacitor in parallel
with a 1F low-ESR capacitor placed as close as possi-
ble to the MAX9939.
INPUT OFFSET VOLTAGE
(V4 = 0 TRIMS POSITIVE, V4 = 1 TRIMS NEGATIVE)
V3:V0
VOS (mV)
0000
0
0001
1.3
0010
2.5
0011
3.8
0100
4.9
0101
6.1
0110
7.3
0111
8.4
1000
10.6
1001
11.7
1010
12.7
1011
13.7
1100
14.7
1101
15.7
1110
16.7
1111
17.6
Table 4. Input Offset-Voltage Trim
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| 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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