参数资料
| 型号： | MAX4289ESA+T |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 6/9页 |
| 文件大小： | 0K |
| 描述： | IC OP AMP SNGL 8-SOIC |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 2,500 |
| 放大器类型： | 通用 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 0.006 V/µs |
| 增益带宽积： | 17kHz |
| 电流 - 输入偏压： | 5nA |
| 电压 - 输入偏移： | 200µV |
| 电流 - 电源： | 18µA |
| 电流 - 输出 / 通道： | 19mA |
| 电压 - 电源，单路/双路(±)： | 1 V ~ 5.5 V |
| 工作温度： | -40°C ~ 85°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 带卷 (TR) |
MAX4289
Detailed Description
The MAX4289 consumes ultra-low power (9A supply
current typically) and has a rail-to-rail output stage that
is specifically designed for low-voltage operation. The
input common-mode voltage range extends from VCC -
0.2V to ground, although full rail-to-rail input range is
possible with degraded performance. The input offset
voltage is typically 200V. Low-operating supply volt-
age, low supply current, and rail-to-rail outputs make
this operational amplifier an excellent choice for preci-
sion or general-purpose, low-voltage, battery-powered
systems.
Rail-to-Rail Output Stage
The MAX4289 output stage can drive a 5k
load and
still swing to within 7mV of the rails. Figure 1 shows the
output voltage swing of the MAX4289 configured as a
unity-gain buffer, powered from a single 2V supply volt-
age. The output for this setup typically swings from
+0.4mV to (VCC - 0.2mV) with a 100k
load.
Applications Information
Power-Supply Considerations
The MAX4289 operates from a single 1.0V to 5.5V supply
and consumes only 9A of supply current. A high power-
supply rejection ratio of 75dB allows the amplifier to be
powered directly off a decaying battery voltage, simplify-
ing design and extending battery life. The MAX4289 is
ideally suited for single-cell battery-powered systems.
Figures 2 and 3 show the supply current and PSRR as a
function of supply voltage and temperature.
1.0V Micropower, SOT23, Operational Amplifier
6
_______________________________________________________________________________________
Pin Description
PIN
SO
SOT23
NAME
FUNCTION
1, 5, 8
5
N.C.
No Connection. Not internally connected.
2
4
IN-
Inverting Input
3
IN+
Noninverting Input
4
2
GND
Ground
6
1
OUT
Amplifier Output
76
VCC
Positive Supply. Bypass with a 0.1F capacitor to GND.
200
s/div
IN
500mV/div
OUT
500mV/div
VIN = 2.0V
fIN = 1kHz
RL = 100k
Figure 1. Rail-to-Rail Input/Output Voltage Range
0
5
15
10
20
25
02
1
3
456
SUPPLY CURRENT
vs. SUPPLY VOLTAGE
SUPPLY VOLTAGE (V)
SUPPLY
CURRENT
(
A)
TA = +85
°C
TA = +25
°C
TA = -40
°C
Figure 2. ICC vs. VCC Over the Temperature Range
相关PDF资料 |
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相关代理商/技术参数 |
参数描述 |
|---|---|
| MAX4289EUT | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX4289EUT+ | 制造商:Maxim Integrated Products 功能描述:OP AMP SGL GP R-R O/P 5.5V 6PIN SOT-23 - Rail/Tube |
| MAX4289EUT+T | 功能描述:运算放大器 - 运放 1.0V uPower RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MAX4289EUT-T | 功能描述:运算放大器 - 运放 1.0V uPower RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| MAX428ACPA-2 | 功能描述:运算放大器 - 运放 RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
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