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參數(shù)資料
| 型號： | MAX9943EVKIT+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 13/15頁 |
| 文件大?。?/td> | 0K |
| 描述： | EVALUATION KIT FOR MAX9943 |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 每 IC 通道數(shù)： | 1 - 單 |
| 放大器類型： | 通用 |
| 輸出類型： | 單端，滿擺幅 |
| 轉(zhuǎn)換速率： | 0.35 V/µs |
| 電流 - 輸出 / 通道： | 20mA |
| 工作溫度： | -40°C ~ 125°C |
| 電流供應(yīng)（主 IC）： | 550µA |
| 電壓 - 電源，單路/雙路(±)： | 6 V ~ 38 V，±3 V ~ 19 V |
| 板類型： | 完全填充 |
| 已供物品： | 板 |
| 已用 IC / 零件： | MAX9943 |
Detailed Description
The MAX9943/MAX9944 are single/dual operational
amplifiers designed for industrial applications. They
operate from 6V to 38V supply range while maintaining
excellent performance. These devices utilize a three-
stage architecture optimized for low offset voltage and
low input noise with only 550μA supply current. The
devices are unity gain stable with a 1nF capacitive
load. These well-matched devices guarantee the high
open-loop gain, CMRR, PSRR, and low voltage offset.
The MAX9943/MAX9944 provide a wide input/output
voltage range. The input terminals of the MAX9943/
MAX9944 are protected from excessive differential volt-
age with back-to-back diodes. The input signal current
is also limited by an internal series resistor. With a 40V
differential voltage, the input current is limited to 20mA.
The output can swing to the negative rail while deliver-
ing 20mA of current, which is ideal for loop-powered
system applications. The specifications and operation
of the MAX9943/MAX9944 family is guaranteed over the
-40°C to +125°C temperature range.
Application Information
Bias Current vs. Input Common Mode
The MAX9943/MAX9944 use an internal bias current
cancellation circuit to achieve very low bias current over
a wide input common-mode range. For such a circuit to
function properly, the input common mode must be at
least 300mV away from the negative supply VEE. The
input common mode can reach the negative supply
VEE. However, in the region between VEE and VEE +
0.3V, there is an increase in bias current for both inputs.
Capacitive Load Stability
Driving large capacitive loads can cause instability in
many op amps. The MAX9943/MAX9944 are stable with
capacitive loads up to 1nF. The Capacitive Load vs.
Resistive Load graph in the
Typical Operating
Characteristics gives the stable operation region for
capacitive versus resistive loads. Stability with higher
capacitive loads can be improved by adding an isola-
tion resistor in series with the op-amp output, as shown
in Figure 1. This resistor improves the circuit’s phase
margin by isolating the load capacitor from the amplifi-
er’s output.
MAX9943/MAX9944
High-Voltage, Precision, Low-Power Op Amps
_______________________________________________________________________________________
7
Pin Description
MAX9943
6 TDFN-EP
MAX9943
8 MAX
MAX9944
8 SO/TDFN-EP
NAME
FUNCTION
1
6
—
OUT
Output
—
1
OUTA
Output A
—
7
OUTB
Output B
24
4
VEE
Negative Power Supply. Bypass with a 0.1μF capacitor to ground.
3
—
IN+
Positive Input
—
3
INA+
Positive Input A
—
5
INB+
Positive Input B
4
2
—
IN-
Negative Input
—
2
INA-
Negative Input A
—
6
INB-
Negative Input B
5
1, 5, 8
—
N.C.
No Connection
67
8
VCC
Positive Power Supply. Bypass with a 0.1μF capacitor to ground.
——
—
EP
Exposed Pad (TDFN Only). Connect to a large VEE plane to maximize
thermal performance. Not intended as an electrical connection point.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX9943EVKIT+ | 功能描述:放大器 IC 開發(fā)工具 MAX9943 Eval Kit RoHS:否 制造商:International Rectifier 產(chǎn)品:Demonstration Boards 類型:Power Amplifiers 工具用于評估:IR4302 工作電源電壓:13 V to 23 V |
| MAX9944ASA+ | 功能描述:精密放大器 Precision Op Amp RoHS:否 制造商:Maxim Integrated 每芯片的通道數(shù)量: 輸入補(bǔ)償電壓:0.25 mV at +/- 5 V 輸入電壓范圍（最大值）: 安裝風(fēng)格: 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| MAX9944ASA+T | 功能描述:精密放大器 Precision Op Amp RoHS:否 制造商:Maxim Integrated 每芯片的通道數(shù)量: 輸入補(bǔ)償電壓:0.25 mV at +/- 5 V 輸入電壓范圍（最大值）: 安裝風(fēng)格: 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
| MAX9944ATA+ | 制造商:Maxim Integrated Products 功能描述: |
| MAX9944ATA+T | 功能描述:精密放大器 Precision Op Amp RoHS:否 制造商:Maxim Integrated 每芯片的通道數(shù)量: 輸入補(bǔ)償電壓:0.25 mV at +/- 5 V 輸入電壓范圍（最大值）: 安裝風(fēng)格: 封裝 / 箱體:SOIC-8 Narrow 封裝:Tube |
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