参数资料
| 型号： | EL8188IW-T7A |
| 厂商： | Intersil |
| 文件页数： | 14/14页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP SGL MICROPOWER SOT23-6 |
| 标准包装： | 250 |
| 放大器类型： | 通用 |
| 电路数： | 1 |
| 输出类型： | 满摆幅 |
| 转换速率： | 0.15 V/µs |
| 增益带宽积： | 266kHz |
| 电流 - 输入偏压： | 1pA |
| 电压 - 输入偏移： | 50µV |
| 电流 - 电源： | 55µA |
| 电流 - 输出 / 通道： | 31mA |
| 电压 - 电源，单路/双路(±)： | 2.4 V ~ 5 V |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | SOT-23-6 |
| 供应商设备封装： | SOT-23-6 |
| 包装： | 带卷 (TR) |
9
FN7467.7
February 24, 2011
Application Information
Introduction
The EL8188 is a rail-to-rail input and output (RRIO),
micro-power, precision, single supply op amp. This amplifier
is designed to operate from single supply (2.4V to 5.5V) or
dual supply (
±1.2V to ±2.75V) while drawing only 55A of
supply current.The device achieves rail-to-rail input and
output operation while eliminating the drawbacks of many
conventional RRIO op amps.
Rail-to-Rail Input
The PFET input stage of the EL8188 has an input
common-mode voltage range that includes the negative and
positive supplies without introducing offset errors or
degrading performance like some existing rail-to-rail input op
amps. Many rail-to-rail input stages use two differential input
pairs: a long-tail PNP (or PFET) and an NPN (or NFET).
Severe penalties result from using this topology. As the input
signal moves from one supply rail to the other, the op amp
switches from one input pair to the other causing changes in
input offset voltage and an undesired change in the input
offset current’s magnitude and polarity.
The EL8188 achieves rail-to-rail input performance without
sacrificing important precision specifications and without
degrading distortion performance. The EL8188's input offset
voltage exhibits a smooth behavior throughout the entire
common-mode input range.
Rail-to-Rail Output
A pair of complementary MOSFET devices achieves rail-to-rail
output swing. The NMOS sinks current to swing the output in
the negative direction, while the PMOS sources current to
swing the output in the positive direction. The EL8188 with a
100k
Ω load swings to within 3mV of the supply rails.
Results of Over-Driving the Output
Caution should be used when over-driving the output for long
periods of time. Over-driving the output can occur in three
ways:
1. The input voltage times the gain of the amplifier exceeds the
supply voltage by a large value.
2. The output current required is higher than the output stage
can deliver.
3. Operating the device in Slew Rate Limit. These conditions
can result in a shift in the Input Offset Voltage (VOS) as
much as 1V/hr of exposer under these condition.
IN+ and IN- Input Protection
In addition to ESD protection diodes to each supply rail, the
EL8188 has additional back-to-back protection diodes across
the differential input terminals (see “Circuit 1” diagram on
page 8). If the magnitude of the differential input voltage
exceeds the diode’s VF, then one of these diodes will conduct.
For elevated temperatures, the leakage of the protection
diodes (Circuit 1 pin description table) increases, resulting in
Usage Implications
If the input differential voltage is expected to exceed 0.5V, an
external current limiting resistor must be used to ensure the
input current never exceeds 5mA. For noninverting unity gain
applications the current limiting can be via a series IN+ resistor,
or via a feedback resistor of appropriate value. For other gain
configurations, the series IN+ resistor is the best choice, unless
the feedback (RF) and gain setting (RG) resistors are both
sufficiently large to limit the input current to 5mA.
Pin Descriptions
8 LD SOIC
PIN NUMBER
SOT-23 PIN
NUMBER
6 Ld WLCSP
PIN NUMBER PIN NAME
EQUIVALENT
CIRCUIT
DESCRIPTION
1, 5
DNC
Do Not Connect; Internal connection - Must be left floating.
2
4
C1
IN-
Circuit 1
Amplifier’s inverting input
3
C2
IN+
Circuit 1
Amplifier’s non-inverting input
4
2
B2
V-
Circuit 3
Negative power supply
8
5
A1
DNC
Do not connect. Pin must be left floating.
6
1
A2
OUT
Circuit 2
Amplifier’s output
7
6
B1
V+
Circuit 3
Positive power supply
OUT
CIRCUIT 3
CIRCUIT 2
CAPACITIVELY
COUPLED
ESD CLAMP
V+
V-
IN-
V+
V-
CIRCUIT 1
IN+
EL8188
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相关代理商/技术参数 |
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| EL8188IWZ-T7A | 功能描述:IC OPAMP SGL R-R I/O SOT23-6 RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:通用 电路数:2 输出类型:满摆幅 转换速率:1.8 V/µs 增益带宽积:6.5MHz -3db带宽:4.5MHz 电流 - 输入偏压:5nA 电压 - 输入偏移:100µV 电流 - 电源:65µA 电流 - 输出 / 通道:35mA 电压 - 电源，单路/双路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:10-TFSOP，10-MSOP（0.118"，3.00mm 宽） 供应商设备封装:10-MSOP 包装:管件 |
| EL819 | 功能描述:晶体管输出光电耦合器 Photo-Coupler RoHS:否 制造商:Vishay Semiconductors 输入类型:DC 最大集电极/发射极电压:70 V 最大集电极/发射极饱和电压:0.4 V 绝缘电压:5300 Vrms 电流传递比:100 % to 200 % 最大正向二极管电压:1.65 V 最大输入二极管电流:60 mA 最大集电极电流:100 mA 最大功率耗散:100 mW 最大工作温度:+ 110 C 最小工作温度:- 55 C 封装 / 箱体:DIP-4 封装:Bulk |
| EL819M | 功能描述:晶体管输出光电耦合器 Photo-Coupler RoHS:否 制造商:Vishay Semiconductors 输入类型:DC 最大集电极/发射极电压:70 V 最大集电极/发射极饱和电压:0.4 V 绝缘电压:5300 Vrms 电流传递比:100 % to 200 % 最大正向二极管电压:1.65 V 最大输入二极管电流:60 mA 最大集电极电流:100 mA 最大功率耗散:100 mW 最大工作温度:+ 110 C 最小工作温度:- 55 C 封装 / 箱体:DIP-4 封装:Bulk |
| EL819S | 功能描述:晶体管输出光电耦合器 Photo-Coupler RoHS:否 制造商:Vishay Semiconductors 输入类型:DC 最大集电极/发射极电压:70 V 最大集电极/发射极饱和电压:0.4 V 绝缘电压:5300 Vrms 电流传递比:100 % to 200 % 最大正向二极管电压:1.65 V 最大输入二极管电流:60 mA 最大集电极电流:100 mA 最大功率耗散:100 mW 最大工作温度:+ 110 C 最小工作温度:- 55 C 封装 / 箱体:DIP-4 封装:Bulk |
| EL8200 | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:200MHz Rail-to-Rail Amplifiers |
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