- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄377781 > LTC2055 (Linear Technology Corporation) Dual/Quad 18MHz, Low Noise, Rail-to-Rail, CMOS Op Amps PDF資料下載
參數(shù)資料
| 型號： | LTC2055 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | Dual/Quad 18MHz, Low Noise, Rail-to-Rail, CMOS Op Amps |
| 中文描述： | 雙/四路18MHz的，低噪聲，軌到軌CMOS運(yùn)算放大器 |
| 文件頁數(shù)： | 19/24頁 |
| 文件大小： | 490K |
| 代理商： | LTC2055 |
LTC6241/LTC6242
19
62412f
APPLICATIU
Low Noise Shock Sensor Amplifiers
Figures 9 and 10 show the LTC6241 realizing two different
approaches to amplifying signals from a capacitive sensor.
The sensor in both cases is a 770pF piezoelectric shock
sensor accelerometer, which generates charge under
physical acceleration.
Figure 9 shows the classical “charge amplifier” approach.
The LTC6241 is in the inverting configuration so the sensor
looks into a virtual ground. All of the charge generated
by the sensor is forced across the feedback capacitor
by the op amp action. Because the feedback capacitor
is 100 times smaller than the sensor, it will be forced to
100 times what would have been the sensor’s open circuit
voltage. So the circuit gain is 100. The benefit of this ap-
proach is that the signal gain of the circuit is independent
of any cable capacitance introduced between the sensor
and the amplifier. Hence this circuit is favored for remote
W
U
U
BIAS RESISTOR
VISHAY-TECHNO
CRHV2512AF1007G
(OR EQUIVALENT)
MAIN
GAIN-SETTING
ELEMENT IS A
CAPACITOR
SHOCK SENSOR
MURATA-ERIE
PKGS-00LD
770pF
CABLE HAS
UNKNOWN C
R
f
1G
6241 F09
V
OUT
= 110mV/g
–
+
1/2
LTC6241
C
f
7.7pF
Figure 9. Classical Inverting Charge Amplifier
accelerometers where the cable length may vary. Difficulties
with the circuit are inaccuracy of the gain setting with the
small capacitor, and low frequency cutoff due to the bias
resistor working into the small feedback capacitor.
Figure 10 shows a non-inverting amplifier approach. This
approach has many advantages. First of all, the gain is set
accurately with resistors rather than with a small capaci-
tor. Second, the low frequency cutoff is dictated by the
bias resistor working into the large 770pF sensor, rather
than into a small feedback capacitor, for lower frequency
response. Third, the non-inverting topology can be paral-
leled and summed (as shown) for scalable reductions in
voltage noise. The only drawback to this circuit is that the
parasitic capacitance at the input reduces the gain slightly.
This circuit is favored in cases where parasitic input
capacitances such as traces and cables will be relatively
small and invariant.
BIAS RESISTOR
VISHAY-TECHNO
CRHV2512AF1007G
(OR EQUIVALENT)
1G
V
S+
6241 F10
10k
1k
1k
100
V
OUT
= 110mV/g
V
±
1.4V to
±
5.5V
BW = 0.2Hz to 10kHz
V
OUT
–
+
1/2
LTC6241HV
V
S–
10k
100
–
+
1/2
LTC6241HV
SHOCK SENSOR
MURATA-ERIE
PKGS-00LD
770pF
Figure 10. Low Noise Non-Inverting Shock Sensor Amplifier
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC6242HVIDHC | Dual/Quad 18MHz, Low Noise, Rail-to-Rail, CMOS Op Amps |
| LTC6242HVIGN | Dual/Quad 18MHz, Low Noise, Rail-to-Rail, CMOS Op Amps |
| LTC6241HVIS8 | Dual/Quad 18MHz, Low Noise, Rail-to-Rail, CMOS Op Amps |
| LTC6241HVCDD | Dual/Quad 18MHz, Low Noise, Rail-to-Rail, CMOS Op Amps |
| LTC6241HVCS8 | Dual/Quad 18MHz, Low Noise, Rail-to-Rail, CMOS Op Amps |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LTC2055CDD | 功能描述:IC OPAMP ZERO DRIFT DUAL LP 8DFN RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉(zhuǎn)換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| LTC2055CDD#PBF | 功能描述:IC OPAMP ZERO DRIFT DUAL LP 8DFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:通用 電路數(shù):2 輸出類型:滿擺幅 轉(zhuǎn)換速率:1.8 V/µs 增益帶寬積:6.5MHz -3db帶寬:4.5MHz 電流 - 輸入偏壓:5nA 電壓 - 輸入偏移:100µV 電流 - 電源:65µA 電流 - 輸出 / 通道:35mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 5.25 V，±0.9 V ~ 2.625 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:10-TFSOP，10-MSOP（0.118"，3.00mm 寬） 供應(yīng)商設(shè)備封裝:10-MSOP 包裝:管件 |
| LTC2055CDD#TR | 功能描述:IC OPAMP ZERO DRIFT DUAL LP 8DFN RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOICN 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:680 (CN2011-ZH PDF) 其它名稱:MCP6L04T-E/SLCT |
| LTC2055CDD#TRPBF | 功能描述:IC OPAMP ZERO DRIFT DUAL LP 8DFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:2pA 電壓 - 輸入偏移:1000µV 電流 - 電源:85µA 電流 - 輸出 / 通道:20mA 電壓 - 電源，單路/雙路(±):1.8 V ~ 6 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOICN 包裝:剪切帶 (CT) 產(chǎn)品目錄頁面:680 (CN2011-ZH PDF) 其它名稱:MCP6L04T-E/SLCT |
| LTC2055CMS8 | 功能描述:IC OPAMP ZERO DRFT DUAL LP 8MSOP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 放大器類型:電壓反饋 電路數(shù):4 輸出類型:滿擺幅 轉(zhuǎn)換速率:33 V/µs 增益帶寬積:20MHz -3db帶寬:30MHz 電流 - 輸入偏壓:2nA 電壓 - 輸入偏移:3000µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:帶卷 (TR) |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。