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參數(shù)資料
| 型號： | LT1639 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 1.2MHz, 0.4V/μs Over-The-TopTM Micropower Rail-to-Rail Input and Output Op Amps(1.2MHz, 0.4V/μs，微功耗四路滿幅度輸入和輸出運(yùn)算放大器) |
| 中文描述： | 1.2MHz的，0.4V/μs的Over - The - TopTM微軌到軌輸入和輸出運(yùn)算放大器（1.2MHz的，0.4V/μs，微功耗四路滿幅度輸入和輸出運(yùn)算放大器） |
| 文件頁數(shù)： | 12/12頁 |
| 文件大?。?/td> | 198K |
| 代理商： | LT1639 |
12
LT1638/LT1639
16389fs, sn16389 LT/TP 1098 4K PRINTED IN USA
LINEAR TECHNOLOGY CORPORATION 1998
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900
G
FAX: (408) 434-0507
G
www.linear-tech.com
TYPICAL APPLICATIO
N
U
The battery monitor in Figure 5 also demonstrates the
LT1638’s ability to operate with its inputs above the
positive rail. In this application, a conventional amplifier
would be limited to a battery voltage between 5V and
ground, but the LT1638 can handle battery voltages as
high as 44V. When the battery is charging, Amp B senses
the voltage drop across R
S
. The output of Amp B causes
Q2 to drain sufficient current through R
B
to balance the
input of Amp B. Likewise, Amp A and Q1 form a closed
RA, 2k
Q2
2N3904
S1
S1 = OPEN, GAIN = 1
S1 = CLOSED, GAIN = 10
R
A
= R
B
V
S
= 5V, 0V
10k
90.9k
V
OUT
LOGIC
1638/39 F05
LOGIC HIGH (5V) = CHARGING
LOGIC LOW (0V) = DISCHARGING
R
G
10k
Q1
2N3904
R
S
, 0.2
CHARGER
VOLTAGE
R
A
',
2k
R
B
'
,
2k
R
B
, 2k
V
BATT
= 12V
I
BATT
+
LOAD
OUT
S
)(R
G
/R
A
)(GAIN)
V
OUT
GAIN
I
BATT
= (R
–
+
A
1/4 LT1639
–
+
B
1/4 LT1639
–
+
C
1/4 LT1639
–
+
D
1/4 LT1639
Figure 5. Battery Monitor
PART NUMBER
LT1078/LT1079
LT2078/LT2079
LT1178/LT1179
LT2178/LT2179
LT1366/LT1367
LT1490/LT1491
DESCRIPTION
Dual/Quad 55
μ
A Max, Single Supply, Precision Op Amps
COMMENTS
Input/Output Common Mode Includes Ground, 70
μ
V V
OS(MAX)
and 2.5
μ
V/
°
C Drift (Max), 200kHz GBW, 0.07V/
μ
s Slew Rate
Input/Output Common Mode Includes Ground, 70
μ
V V
OS(MAX)
and 4
μ
V/
C Drift (Max), 85kHz GBW, 0.04V/
μ
s Slew Rate
475
μ
V V
OS(MAX)
, 500V/mV A
VOL(MIN)
, 400kHz GBW
Single Supply Input Range: –0.4V to 44V, Micropower 50
μ
A
per Amplifier, Rail-to-Rail Input and Output, 200kHz GBW
55
μ
A Supply Current, V
CM
Extends 44V above V
EE
,
Independent of V
CC
; MSOP Package, Shutdown Function
Dual/Quad 17
μ
A Max, Single Supply, Precison Op Amps
Dual/Quad Precision, Rail-to-Rail Input and Output Op Amps
Dual/Quad Over-The-Top Micropower, Rail-to-Rail Input and
Output Op Amps
Single Over-The-Top Micropower Rail-to-Rail Input and Output
Op Amp
LT1636
RELATED PARTS
loop when the battery is discharging. The current through
Q1 or Q2 is proportional to the current in R
S
and this
current flows into R
G
and is converted into a voltage. Amp
D buffers and amplifies the voltage across R
G
. Amp C
compares the output of Amp A and Amp B to determine
the polarity of current through R
S
. The scale factor for
V
OUT
with S1 open is 1V/A. With S1 closed the scale factor
is 1V/100mA and currents as low as 500
μ
A can be
measured.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1639CN | 功能描述:IC OPAMP R-R IN/OUT QUAD 14-DIP RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Over-The-Top® 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| LT1639CN#PBF | 功能描述:IC OPAMP R-R IN/OUT QUAD 14-DIP RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Over-The-Top® 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| LT1639CS | 功能描述:IC OPAMP R-R IN/OUT QUAD 14SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Over-The-Top® 標(biāo)準(zhǔn)包裝:50 系列:- 放大器類型:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:3.5 V/µs 增益帶寬積:1MHz -3db帶寬:- 電流 - 輸入偏壓:30pA 電壓 - 輸入偏移:2000µV 電流 - 電源:200µA 電流 - 輸出 / 通道:- 電壓 - 電源，單路/雙路(±):7 V ~ 36 V，±3.5 V ~ 18 V 工作溫度:0°C ~ 70°C 安裝類型:通孔 封裝/外殼:8-DIP（0.300"，7.62mm） 供應(yīng)商設(shè)備封裝:8-PDIP 包裝:管件 |
| LT1639CS#PBF | 功能描述:IC OPAMP R-R IN/OUT QUAD 14SOIC RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Over-The-Top® 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 |
| LT1639CS#TR | 功能描述:IC OPAMP R-R I/O QUAD 14SOIC RoHS:否 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:Over-The-Top® 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:0.028 V/µs 增益帶寬積:105kHz -3db帶寬:- 電流 - 輸入偏壓:3nA 電壓 - 輸入偏移:100µV 電流 - 電源:3.3µA 電流 - 輸出 / 通道:12mA 電壓 - 電源，單路/雙路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作溫度:-40°C ~ 85°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:剪切帶 (CT) 其它名稱:OP481GRUZ-REELCT |
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