参数资料
| 型号： | ISL28268FBZ |
| 厂商： | Intersil |
| 文件页数： | 4/17页 |
| 文件大小： | 0K |
| 描述： | IC OP AMP DUAL RRIO 34UA 8-SOIC |
| 标准包装： | 97 |
| 放大器类型： | 通用 |
| 电路数： | 2 |
| 输出类型： | 满摆幅 |
| 转换速率： | 0.1 V/µs |
| 增益带宽积： | 200kHz |
| -3db带宽： | 420kHz |
| 电流 - 输入偏压： | 10pA |
| 电压 - 输入偏移： | 90µV |
| 电流 - 电源： | 34µA |
| 电流 - 输出 / 通道： | 30mA |
| 电压 - 电源，单路/双路(±)： | 2.4 V ~ 5.5 V，±1.2 V ~ 2.75 V |
| 工作温度： | -40°C ~ 125°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： | 管件 |
| 产品目录页面： | 1234 (CN2011-ZH PDF) |
12
FN6378.4
July 25, 2011
Applications Information
Introduction
The ISL28168 is a single CMOS rail-to-rail input, output
(RRIO) operational amplifier with an enable feature. The
ISL28268 is a dual version without the enable feature. Both
devices are designed to operate from single supply (2.4V to
5.5V) or dual supplies (±1.2V to ±2.75V).
Rail-to-Rail Input/Output
Many rail-to-rail input stages use two differential input pairs,
a long-tail PNP (or PFET) and an NPN (or NFET). Severe
penalties have to be paid for this circuit topology. As the
input signal moves from one supply rail to another, the
operational amplifier switches from one input pair to the
other causing drastic changes in input offset voltage and an
undesired change in magnitude and polarity of input offset
current.
The ISL28168 and ISL28268 achieve input rail-to-rail
operation without sacrificing important precision
specifications and degrading distortion performance. The
devices’ input offset voltage exhibits a smooth behavior
throughout the entire common-mode input range. The input
bias current versus the common-mode voltage range gives
us an undistorted behavior from typically 100mV below the
negative rail, and 0.25V higher than the V+ rail. The CMOS
output stage features excellent drive capability, typically
swinging to within 6mV of either rail with a 100k
Ω load.
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 two
ways.
1. The input voltage times the gain of the amplifier exceeds
the supply voltage by a large value
FIGURE 37. VOUT LOW vs TEMPERATURE, V+, V- = ±2.5V,
RL = 1k
FIGURE 38. VOUT LOW vs TEMPERATURE, V+, V- = ±2.5V,
RL = 100k
FIGURE 39. IO+ SHORT CIRCUIT OUTPUT CURRENT vs
TEMPERATURE, VIN = -2.55V, RL = 10k,
V+, V- = ±2.5V
FIGURE 40. IO- SHORT CIRCUIT OUTPUT CURRENT vs
TEMPERATURE, VIN = +2.55V, RL = 10k,
V+, V- = ±2.5V
Typical Performance Curves V+ = 5V, V- = 0V, VCM = 2.5V, RL = Open (Continued)
100
110
120
130
140
150
160
170
180
190
-40
-20
0
20406080
100
120
TEMPERATURE (°C)
MAX
N = 1000
MIN
MEDIAN
V
OU
T
(mV
)
4.0
4.5
5.0
5.5
6.0
6.5
7.0
7.5
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (°C)
V
OU
T
(m
V
)
MEDIAN
MAX
N = 1000
MIN
20
25
30
35
40
45
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (°C)
I O
+
SHORT
C
IRCUIT
CURR
E
N
T
(mA)
MEDIAN
MAX
N = 1000
MIN
-32
-30
-28
-26
-24
-22
-20
-40
-20
0
20
40
60
80
100
120
TEMPERATURE (°C)
I O
-SHORT
CIRCUIT
CURRENT
(m
A)
MEDIAN
MAX
N = 1000
MIN
ISL28168, ISL28268
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相关代理商/技术参数 |
参数描述 |
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| ISL28268FBZ-T7 | 功能描述:IC OP AMP DUAL RRIO 34UA 8-SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 放大器类型:通用 电路数:1 输出类型:满摆幅 转换速率:3 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:1pA 电压 - 输入偏移:70µV 电流 - 电源:2.5mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 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-6 包装:Digi-Reel® 其它名称:MAX4475AUT#TG16DKR |
| ISL28268FUZ | 功能描述:IC OP AMP DUAL RRIO 34UA 8-MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 放大器类型:通用 电路数:1 输出类型:满摆幅 转换速率:3 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:1pA 电压 - 输入偏移:70µV 电流 - 电源:2.5mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 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-6 包装:Digi-Reel® 其它名称:MAX4475AUT#TG16DKR |
| ISL28268FUZ-T7 | 功能描述:IC OP AMP DUAL RRIO 34UA 8-MSOP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- 放大器类型:通用 电路数:1 输出类型:满摆幅 转换速率:3 V/µs 增益带宽积:10MHz -3db带宽:- 电流 - 输入偏压:1pA 电压 - 输入偏移:70µV 电流 - 电源:2.5mA 电流 - 输出 / 通道:48mA 电压 - 电源，单路/双路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 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-6 包装:Digi-Reel® 其它名称:MAX4475AUT#TG16DKR |
| ISL28268MSOPEVAL1Z | 功能描述:EVALUATION BOARD ISL28268 8MSOP RoHS:是 类别:编程器，开发系统 >> 评估板 - 运算放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
| ISL28268SOICEVAL1Z | 功能描述:EVALUATION BOARD ISL28268 8SOIC RoHS:是 类别:编程器，开发系统 >> 评估板 - 运算放大器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:1 系列:- |
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