参数资料
| 型号： | LT1793IS8 |
| 厂商： | Linear Technology |
| 文件页数： | 1/12页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP PREC JFET LOWNOIS 8SOIC |
| 标准包装： | 100 |
| 放大器类型： | J-FET |
| 电路数： | 1 |
| 转换速率： | 3.4 V/µs |
| 增益带宽积： | 4.2MHz |
| 电流 - 输入偏压： | 4pA |
| 电压 - 输入偏移： | 250µV |
| 电流 - 电源： | 4.2mA |
| 电压 - 电源，单路/双路(±)： | ±4.5 V ~ 20 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-SO |
| 包装： | 管件 |
1
LT1793
Low Noise,
Picoampere Bias Current,
JFET Input Op Amp
1kHz Output Voltage Noise
Density vs Source Resistance
SOURCE RESISTANCE (
)
10k
1k
100
10
1
100
10k
100k
1M
1k
10M
1793 TA02
TOTAL
1kHz
VOLTAGE
NOISE
DENSITY
(nV/
√
Hz)
100M 1G
–
+
VN
RSOURCE
TA = 25°C
VS = ±15V
VN
SOURCE
RESISTANCE
ONLY
VN =
√(V
OP AMP)
2 + 4kTRS + 2qIBRS2
The LT
1793 achieves a new standard of excellence in
noise performance for a JFET op amp. For the first time low
voltage noise (6nV/
√Hz) is simultaneously offered with
extremely low current noise (0.8fA/
√Hz), providing the
lowest total noise for high impedance transducer applica-
tions. Unlike most JFET op amps, the very low input bias
current (3pA typ) is maintained over the entire common
mode range which results in an extremely high input resis-
tance (1013
). When combined with a very low input ca-
pacitance (1.5pF) an extremely high input impedance
results, making the LT1793 the first choice for amplifying
low level signals from high impedance transducers. The
low input capacitance also assures high gain linearity when
buffering AC signals from high impedance transducers.
The LT1793 is unconditionally stable for gains of 1 or more,
even with 1000pF capacitive loads. Other key features are
250
V VOS and a voltage gain over 4 million. Each indi-
vidual amplifier is 100% tested for voltage noise, slew rate
(3.4V/
s) and gain-bandwidth product (4.2MHz).
Specifications at
±5V supply operation are also provided.
For an even lower voltage noise please see the LT1792 data
sheet.
s
Input Bias Current, Warmed Up: 10pA Max
s
100% Tested Low Voltage Noise: 8nV/
√Hz Max
s
A Grade 100% Temperature Tested
s
Offset Voltage Over Temp: 1mV Max
s
Input Resistance: 1013
s
Very Low Input Capacitance: 1.5pF
s
Voltage Gain: 1 Million Min
s
Gain-Bandwidth Product: 4.2MHz Typ
s
Guaranteed Specifications with
±5V Supplies
s
Photocurrent Amplifiers
s
Hydrophone Amplifiers
s
High Sensitivity Piezoelectric Accelerometers
s
Low Voltage and Current Noise Instrumentation
Amplifier Front Ends
s
Two and Three Op Amp Instrumentation Amplifiers
s
Active Filters
, LTC and LT are registered trademarks of Linear Technology Corporation.
1793 TA01
R1
1M
C1
2pF
–
+
LT1097
R2C2 > C1R1
CD = PARASITIC PHOTODIODE CAPACITANCE
VOUT = 100mV/WATT FOR 200nm WAVE LENGTH
330mV/
WATT FOR 633nm WAVE LENGTH
R5
10k
D2
1N914
V –
V +
R4
1k
D1
1N914
R3
1k
6
7
4
3
2 –
+
LT1793
V +
V –
C2 0.022
F
HAMAMATSU
S1336-5BK
(908) 231-0960
VOUT
R2
100k
CD
2N3904
Low Noise Light Sensor with DC Servo
FEATURES
DESCRIPTIO
U
APPLICATIO S
U
TYPICAL APPLICATIO
U
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1793IS8#PBF | 功能描述:IC OPAMP PREC JFET LOWNOIS 8SOIC 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 |
| LT1793IS8#TR | 功能描述:IC OPAMP PREC JFET LONOISE 8SOIC RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:- 放大器类型:J-FET 电路数:2 输出类型:- 转换速率:3.5 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:30pA 电压 - 输入偏移:2000µV 电流 - 电源:200µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-PDIP 包装:管件 |
| LT1793IS8#TRPBF | 功能描述:IC OPAMP PREC JFET LOWNOIS 8SOIC 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:J-FET 电路数:2 输出类型:- 转换速率:3.5 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:30pA 电压 - 输入偏移:2000µV 电流 - 电源:200µA 电流 - 输出 / 通道:- 电压 - 电源，单路/双路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作温度:0°C ~ 70°C 安装类型:通孔 封装/外壳:8-DIP（0.300"，7.62mm） 供应商设备封装:8-PDIP 包装:管件 |
| LT1794 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Dual 500mA, 200MHz xDSL Line Driver Amplifier |
| LT1794CFE | 功能描述:IC AMP XDSL LINE DRIVER 20TSSOP RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:- 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC 包装:管件 |
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