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參數(shù)資料
| 型號： | LT1399CGN |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 2/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CRRNT FEEDBK AMP TRPL 16-SSOP |
| 標(biāo)準(zhǔn)包裝： | 100 |
| 放大器類型： | 電流反饋 |
| 電路數(shù)： | 3 |
| 轉(zhuǎn)換速率： | 800 V/µs |
| -3db帶寬： | 300MHz |
| 電流 - 輸入偏壓： | 10µA |
| 電壓 - 輸入偏移： | 1500µV |
| 電流 - 電源： | 4.6mA |
| 電流 - 輸出 / 通道： | 80mA |
| 電壓 - 電源，單路/雙路(±)： | 4 V ~ 12 V，±2 V ~ 6 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 16-SSOP（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 16-SSOP |
| 包裝： | 管件 |
10
LT1398/LT1399/LT1399HV
sn13989 13989fas
U
S
A
O
PPLICATI
WU
U
I FOR ATIO
Power Supplies
The LT1398/LT1399 will operate from single or split
supplies from
±2V (4V total) to ±6V (12V total). The
LT1399HV will operate from single or split supplies from
±2V (4V total) to ±7.5V (15V total). It is not necessary to
use equal value split supplies, however the offset voltage
and inverting input bias current will change. The offset
voltage changes about 600
V per volt of supply mis-
match. The inverting bias current will typically change
about 2
A per volt of supply mismatch.
Slew Rate
Unlike a traditional voltage feedback op amp, the slew rate
of a current feedback amplifier is not independent of the
amplifier gain configuration. In a current feedback ampli-
fier, both the input stage and the output stage have slew rate
limitations. In the inverting mode, and for gains of 2 or more
in the noninverting mode, the signal amplitude between the
input pins is small and the overall slew rate is that of the
output stage. For gains less than 2 in the noninverting mode,
the overall slew rate is limited by the input stage.
The input slew rate of the LT1398/LT1399/LT1399HV is
approximately 600V/
s and is set by internal currents and
capacitances. The output slew rate is set by the value of the
feedback resistor and internal capacitance. At a gain of 2
with 324
feedback and gain resistors and ±5V supplies,
the output slew rate is typically 800V/
s. Larger feedback
resistors will reduce the slew rate as will lower supply
voltages.
Enable/ Disable
Each amplifier of the LT1398/LT1399/LT1399HV has a
unique high impedance, zero supply current mode which
is controlled by its own EN pin. These amplifiers are
designed to operate with CMOS logic; the amplifiers draw
zero current when these pins are high. To activate each
amplifier, its EN pin is normally pulled to a logic low.
However, supply current will vary as the voltage between
the V + supply and EN is varied. As seen in Figure 1, +IS
does vary with (V + – VEN), particularly when the voltage
difference is less than 3V. For normal operation, it is
important to keep the EN pin at least 3V below the V +
supply. If a V + of less than 3V is desired, and the amplifier
will remain enabled at all times, then the EN pin should be
tied to the V – supply. The enable pin current is approxi-
mately 30
A when activated. If using CMOS open-drain
logic, an external 1k pull-up resistor is recommended to
ensure that the LT1399 remains disabled in spite of any
CMOS drain-leakage currents.
Figure 1. + IS vs (V
+ – VEN)
V + – VEN (V)
0
+I
S
(mA)
0.5
1.5
2.0
2.5
5.0
3.5
2
4
5
1398/99 F01
1.0
4.0
4.5
3.0
1
3
6
7
TA = 25°C
V + = 5V
V – = – 5V
V – = 0V
Figure 2. Amplifier Enable Time, AV = 2
VS = ±5V
VIN = 1V
RF = 324
RG = 324
RL = 100
1398/99 F02
OUTPUT
EN
Figure 3. Amplifier Disable Time, AV = 2
VS = ±5V
VIN = 1V
RF = 324
RG = 324
RL = 100
1398/99 F03
OUTPUT
EN
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| LT1399CGN#PBF | 功能描述:IC CRRNT FEEDBK AMP TRPL 16-SSOP 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 |
| LT1399CGN#TR | 功能描述:IC AMP CURR FEEDBACK TRPL 16SSOP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:3 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:1pA 電壓 - 輸入偏移:70µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:Digi-Reel® 其它名稱:MAX4475AUT#TG16DKR |
| LT1399CGN#TRPBF | 功能描述:IC CRRNT FEEDBK AMP TRPL 16-SSOP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 其它有關(guān)文件:Automotive Product Guide 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 放大器類型:通用 電路數(shù):1 輸出類型:滿擺幅 轉(zhuǎn)換速率:3 V/µs 增益帶寬積:10MHz -3db帶寬:- 電流 - 輸入偏壓:1pA 電壓 - 輸入偏移:70µV 電流 - 電源:2.5mA 電流 - 輸出 / 通道:48mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 5.5 V，±1.35 V ~ 2.75 V 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應(yīng)商設(shè)備封裝:SOT-6 包裝:Digi-Reel® 其它名稱:MAX4475AUT#TG16DKR |
| LT1399CS | 功能描述:IC CURRNT FEEDBK AMP TRPL 16SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 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:管件 產(chǎn)品目錄頁面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5 |
| LT1399CS#PBF | 功能描述:IC CURRNT FEEDBK AMP TRPL 16SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:2,500 系列:- 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.6 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:45nA 電壓 - 輸入偏移:2000µV 電流 - 電源:1.4mA 電流 - 輸出 / 通道:40mA 電壓 - 電源，單路/雙路(±):3 V ~ 32 V，±1.5 V ~ 16 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:14-TSSOP（0.173"，4.40mm 寬） 供應(yīng)商設(shè)備封裝:14-TSSOP 包裝:帶卷 (TR) 其它名稱:LM324ADTBR2G-NDLM324ADTBR2GOSTR |
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