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參數(shù)資料
| 型號： | LT1007ACN8 |
| 廠商： | LINEAR TECHNOLOGY CORP |
| 元件分類： | 運(yùn)動(dòng)控制電子 |
| 英文描述： | Low Noise, High Speed Precision Operational Amplifiers |
| 中文描述： | OP-AMP, 50 uV OFFSET-MAX, 8 MHz BAND WIDTH, PDIP8 |
| 封裝： | 0.300 INCH, PLASTIC, DIP-8 |
| 文件頁數(shù)： | 11/16頁 |
| 文件大?。?/td> | 365K |
| 代理商： | LT1007ACN8 |
11
LT1007/LT1037
The LT1007/LT1037 achieve their low noise, in part, by
operating the input stage at 120
μ
A versus the typical 10
μ
A
of most other op amps. Voltage noise is inversely propor-
tional while current noise is directly proportional to the
square root of the input stage current. Therefore, the
LT1007/LT1037’s current noise will be relatively high. At
low frequencies, the low 1/f current noise corner fre-
quency (
≈
120Hz) minimizes current noise to some extent.
In most practical applications, however, current noise will
not limit system performance. This is illustrated in the
Total Noise vs Source Resistance plot in the Typical
Performance Characteristics section, where:
Total Noise = [(voltage noise)
2
+ (current noise R
S
)
2
+
(resistor noise)
2
]
1/2
Three regions can be identified as a function of source
resistance:
(i) R
S
≤
400
. Voltage noise dominates
(ii) 400
≤
R
S
≤
50k at 1kHz
400
≤
R
S
≤
8k at 10Hz
(iii) R
S
> 50k at 1kHz
R
S
> 8k at 10Hz
Clearly the LT1007/LT1037 should not be used in region
(iii), where total system noise is at least six times higher
than the voltage noise of the op amp, i.e., the low voltage
noise specification is completely wasted.
TYPICAL APPLICATIO
N
S
1007/37 TA03
365
1%
15k
5%
20k
TRIM
–
+
LT1037
2
15V
–15V
INPUT
3
7
6
4
OUTPUT
RN60C FILM RESISTORS
340k
1%
THE HIGH GAIN AND WIDE BANDWIDTH OF THE LT1037 (AND LT1007) IS
USEFUL IN LOW FREQUENCY, HIGH CLOSED-LOOP GAIN AMPLIFIER
APPLICATIONS. A TYPICAL PRECISION OP AMP MAY HAVE AN OPEN-LOOP
GAIN OF ONE MILLION WITH 500kHz BANDWIDTH. AS THE GAIN ERROR
PLOT SHOWS, THIS DEVICE IS CAPABLE OF 0.1% AMPLIFYING ACCURACY
UP TO 0.3Hz ONLY. EVEN INSTRUMENTATION RANGE SIGNALS CAN VARY
AT A FASTER RATE. THE LT1037’S “GAIN PRECISION-BANDWIDTH
PRODUCT” IS 200 TIMES HIGHER AS SHOWN.
FREQUENCY (Hz)
0.1
0.001
G
0.01
0.1
1
1
10
100
TYPICAL
PRECISION
OP AMP
LT1007
LT1037
GAIN ERROR =COPEN-LOOP GAIN
Gain 1000 Amplifier with 0.01% Accuracy, DC to 5Hz
Gain Error vs Frequency
Closed-Loop Gain = 1000
}
Resistor noise
dominates
}
Current noise
dominates
APPLICATIO
S I
N
FOR
ATIO
U
W
U
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LT1007AMH | Low Noise, High Speed Precision Operational Amplifiers |
| LT1007AMJ8 | BACKPLANE VME J1/J2 5-SLOT MONO |
| LT1007CH | Low Noise, High Speed Precision Operational Amplifiers |
| LT1007CS8 | Low Noise, High Speed Precision Operational Amplifiers |
| LT1007MH | BACKPLANE VME J1/J2 7-SLOT MONO |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1007ACN8#PBF | 功能描述:IC PREC OP-AMP HI-SPD SNGL 8-DIP 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 |
| LT1007ACNB | 制造商:LT 功能描述: |
| LT1007ACP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| LT1007AMH | 制造商:Linear Technology 功能描述:OP Amp Single GP ±22V 8-Pin TO-5 |
| LT1007AMH/883 | 制造商:Linear Technology 功能描述:OP Amp Single GP |
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