参数资料
| 型号： | LTC6241HVCS8#PBF |
| 厂商： | Linear Technology |
| 文件页数： | 11/32页 |
| 文件大小： | 0K |
| 描述： | IC OP AMP DUAL R-R 8-SOIC |
| 标准包装： | 100 |
| 放大器类型： | 通用 |
| 电路数： | 2 |
| 输出类型： | 满摆幅 |
| 转换速率： | 10 V/µs |
| 增益带宽积： | 18MHz |
| 电流 - 输入偏压： | 0.5pA |
| 电压 - 输入偏移： | 50µV |
| 电流 - 电源： | 2.5mA |
| 电流 - 输出 / 通道： | 35mA |
| 电压 - 电源，单路/双路(±)： | 2.8 V ~ 11 V，±1.4 V ~ 5.5 V |
| 工作温度： | 0°C ~ 70°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-SO |
| 包装： | 管件 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页当前第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页
LTC6240/LTC6241/LTC6242
19
624012fe
Amplier Characteristics
Figure 1 is a simplied schematic of the amplier, which
has a pair of low noise input transistors M1 and M2. A
simple folded cascode Q1, Q2 and R1, R2 allow the input
stage to swing to the negative rail, while performing level
shift to the differential drive generator. Low offset voltage
is accomplished by laser trimming the input stage.
Capacitor C1 reduces the unity cross frequency and im-
proves the frequency stability without degrading the gain
bandwidth of the amplier. Capacitor CM sets the overall
amplier gain bandwidth. The differential drive generator
supplies signals to transistors M3 and M4 that swing the
output from rail-to-rail.
The photo of Figure 2 shows the output response to an
input overdrive with the amplier connected as a voltage
follower. If the negative going input signal is less than
a diode drop below V–, no phase inversion occurs. For
input signals greater than a diode drop below V–, limit the
current to 3mA with a series resistor RS to avoid phase
inversion.
ESD
The LTC6240/LTC6241/LTC6242 have reverse-biased ESD
protection diodes on all input and outputs as shown in
Figure 1. If these pins are forced beyond either supply,
unlimited current will ow through these diodes. If the
current is transient and limited to one hundred milliamps
or less, no damage to the device will occur.
The amplier input bias current is the leakage current of
these ESD diodes. This leakage is a function of the tempera-
ture and common mode voltage of the amplier, as shown
in the Typical Performance Characteristics curves.
Noise
The LTC6240/LTC6241/LTC6242 exhibit exceptionally
low 1/f noise in the 0.1Hz to 10Hz region. This 550nVP-P
noise allows these op amps to be used in a wide variety
of high impedance low frequency applications, where
zero-drift ampliers might be inappropriate due to their
charge injection.
In the frequency region above 1kHz the LTC6240/LTC6241/
LTC6242 also show good noise voltage performance. In
this frequency region, noise can easily be dominated by
the total source resistance of the particular application.
Specically, these ampliers exhibit the noise of a 3.1kΩ
resistor, meaning it is desirable to keep the source and
feedback resistance at or below this value, i.e. RS + RG||RFB
≤ 3.1kΩ. Above this total source impedance, the noise
voltage is not dominated by the amplier.
Noise current can be estimated from the expression in =
√2qIB, where q = 1.6 10–19 coulombs. Equating √4kTRΔf
and R√2qIBΔf shows that for source resistors below 50GΩ
the amplier noise is dominated by the source resistance.
See the Typical Performance Characteristics curve Noise
Current vs Frequency.
Figure 1. Simplied Schematic
Figure 2. Unity Gain Follower Test Circuit
APPLICATIONS INFORMATION
R2
Q2
6241 F01
VIN
+
ITAIL
VIN
–
VO
V+
V–
CM
DESD5
DIFFERENTIAL
DRIVE
GENERATOR
BIAS
DESD6
V+
DESD2
V+
DESD4
V–
DESD1
V–
DESD3
R1
Q1
M2
M1
M3
M4
C1
CLAMP
+2.5V
–2.5V
6241 F02
–
+
LTC6240
RS
VIN
VOUT
VOUT AND VIN OF FOLLOWER WITH LARGE INPUT OVERDRIVE
VDD =
+2.5V
VSS =
–2.5V
相关PDF资料 |
PDF描述 |
|---|---|
| RMCF0402JT1M00 | RES 1M OHM 1/16W 5% 0402 SMD |
| LT6200CS8#PBF | IC OPAMP R-R I/O 165MHZ 8-SOIC |
| SMCJ13A | TVS UNIDIRECT 1500W 13V SMC |
| KDE1208PTV1.13.MS.A.GN | FAN 12V 1.6W |
| RMCF0402JT100R | RES 100 OHM 1/16W 5% 0402 SMD |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LTC6241HVHS8 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Single/Dual/Quad 18MHz, Low Noise, Rail-to-Rail Output, CMOS Op Amps |
| LTC6241HVHS8#PBF | 功能描述:IC OP AMP DUAL R-R 8-SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 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:电流检测 电路数:1 输出类型:- 转换速率:- 增益带宽积:125kHz -3db带宽:- 电流 - 输入偏压:- 电压 - 输入偏移:100µV 电流 - 电源:1.1µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:4-WFBGA，CSPBGA 供应商设备封装:4-UCSP（2x2） 包装:剪切带 (CT) 其它名称:MAX9634WERS+TCT |
| LTC6241HVHS8#TRPBF | 功能描述:IC OP AMP DUAL R-R 8-SOIC RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:100 系列:- 放大器类型:通用 电路数:1 输出类型:- 转换速率:0.2 V/µs 增益带宽积:- -3db带宽:- 电流 - 输入偏压:100pA 电压 - 输入偏移:30µV 电流 - 电源:380µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):±2 V ~ 18 V 工作温度:0°C ~ 70°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-SO 包装:管件 |
| LTC6241HVIDD | 制造商:Linear Technology 功能描述:OP Amp Dual GP R-R O/P ±5.5V/11V 8-Pin DFN EP |
| LTC6241HVIDD#PBF | 功能描述:IC OP AMP DUAL R-R 8-DFN RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 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:电流检测 电路数:1 输出类型:- 转换速率:- 增益带宽积:125kHz -3db带宽:- 电流 - 输入偏压:- 电压 - 输入偏移:100µV 电流 - 电源:1.1µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):- 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:4-WFBGA，CSPBGA 供应商设备封装:4-UCSP（2x2） 包装:剪切带 (CT) 其它名称:MAX9634WERS+TCT |
发布紧急采购，3分钟左右您将得到回复。