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參數(shù)資料
| 型號(hào)： | LT 2178 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 17μA, Dual, Single Supply, Precision Op Amps(17μA,雙路,單電源,精密運(yùn)算放大器) |
| 中文描述： | 17μA，雙，單電源，精密運(yùn)算放大器（17μA，雙路，單電源，精密運(yùn)算放大器） |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大?。?/td> | 266K |
| 代理商： | LT 2178 |
1
LT2178/LT2179
17
μ
A Max, Dual and Quad,
Single Supply, Precision Op Amps
DESCRIPTIO
U
The LT
2178 is a micropower dual op amp in a surface
mount standard 8-pin configuration, the LT2179 is a
micropower quad op amp offered in a surface mount 14-pin
package. Both devices are optimized for single supply opera-
tion at 5V. Specifications are also provided at
±
15V supply.
The extremely low supply current is combined with true
precision specifications: offset voltage is 30
μ
V and offset
current is 50pA. Both offset parameters have low drift
with temperature. The 1.5pA
P-P
current noise and
picoampere offset current permit the use the megohm
level source resistors without introducing serious errors.
Voltage noise, at 0.9
μ
V
P-P
, is remarkably low considering
the low supply current.
The LT2178/LT2179 can be operated from a single supply
(as low as one lithium-cell or two NiCd batteries). The input
range goes below ground. The all-NPN output stage swings
to within a few millivolts of ground while sinking current. No
power consuming pull down resistors are needed.
For surface mount applications where three times higher
supply current is acceptable, the micropower LT1077
single, LT2078 dual and LT2079 quad are recommended.
The LT1077/LT2078/LT2079 have significantly higher
bandwidth, slew rate, lower voltage noise and better
output drive capability. For applications requiring DIP
packages refer to the LT1178/LT1179.
FEATURES
I
SO Package with Standard Pinout
I
Supply Current per Amplifier: 17
μ
A Max
I
Offset Voltage: 70
μ
V Max
I
Offset Current: 250pA Max
I
Input Bias Current: 5nA Max
I
Voltage Noise: 0.9
μ
V
P-P
, 0.1Hz to 10Hz
I
Current Noise: 1.5pA
P-P
, 0.1Hz to 10Hz
I
Offset Voltage Drift: 0.5
μ
V/
°
C
I
Gain Bandwidth Product: 85kHz
I
Slew Rate: 0.04V/
μ
s
I
Single Supply Operation
Input Voltage Range Includes Ground
Output Swings to Ground while Sinking Current
No Pull-Down Resistors Needed
I
Output Sources and Sinks 5mA Load Current
I
Battery- or Solar-Powered Systems
Portable Instrumentation
Remote Sensor Amplifier
Satellite Circuitry
I
Micropower Sample-and-Hold
I
Thermocouple Amplifier
I
Micropower Filters
APPLICATIO
S
U
, LTC and LT are registered trademarks of Linear Technology Corporation.
TYPICAL APPLICATIO
N
U
Self-Buffered, Dual Output, Micropower Reference
Supply Current vs Temperature
–
1/2 LT2178
+
2
3
+
1/2 LT2178
–
5
6
1
0.1
μ
F
250k
1M*
1M*
LT1004-1.2
4
7
2M
0.1
μ
F
1.2365V
OUTPUT
2.470V
OUTPUT
4V TO 9V
LT2178/79 TA01
TOTAL BATTERY CURRENT = 28
μ
A
OUTPUT ACCURACY =
±
0.4% MAX
TEMPERATURE COEFFICIENT = 20ppm/
°
C
LOAD REGULATION = 25ppm/mA, I
L
≤
5mA, V
+
≥
5V
LINE REGULATION = 10ppm/V
*0.1% FILM RESISTORS
8
TEMPERATURE (
°
C)
–50
S
μ
A
–25
0
25
50
LT2178/79 TPC02
75
20
18
16
14
12
10
100
V
S
=
±
15V
V
S
= 5V, 0V
V
S
=
±
1.5V
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| LT2178A | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Precision Micropower RMS-to-DC Converter |
| LT2178ACS8 | 功能描述:IC OPAMP MICROPOWER DUAL 8-SOIC 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: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 |
| LT2178ACS8#PBF | 功能描述:IC OPAMP MICROPOWER DUAL 8-SOIC 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: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 |
| LT2178ACS8#TR | 功能描述:IC OPAMP PREC DUAL MCRPWR 8SOIC 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:J-FET 電路數(shù):2 輸出類型:- 轉(zhuǎn)換速率:13 V/µs 增益帶寬積:3MHz -3db帶寬:- 電流 - 輸入偏壓:65pA 電壓 - 輸入偏移:3000µV 電流 - 電源:1.4mA 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:-40°C ~ 85°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 |
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