參數資料
| 型號： | LT1007IS8#TR |
| 廠商： | Linear Technology |
| 文件頁數： | 3/16頁 |
| 文件大小： | 0K |
| 描述： | IC OP AMP PREC SGL HI SPD 8SOIC |
| 標準包裝： | 2,500 |
| 放大器類型： | 通用 |
| 電路數： | 1 |
| 轉換速率： | 2.5 V/µs |
| 增益帶寬積： | 8MHz |
| 電流 - 輸入偏壓： | 15nA |
| 電壓 - 輸入偏移： | 20µV |
| 電壓 - 電源，單路/雙路(±)： | ±4 V ~ 18 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SO |
| 包裝： | 帶卷 (TR) |
11
LT1007/LT1037
sn100737 100737fbs
The LT1007/LT1037 achieve their low noise, in part, by
operating the input stage at 120
A versus the typical 10A
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 RS)
2 +
(resistor noise)2]1/2
Three regions can be identified as a function of source
resistance:
(i) RS ≤ 400. Voltage noise dominates
(ii) 400
≤ RS ≤ 50k at 1kHz
400
≤ RS ≤ 8k at 10Hz
(iii) RS > 50k at 1kHz
RS > 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 APPLICATIONS
U
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
GAIN
ERROR
(%)
0.01
0.1
1
10
100
TYPICAL
PRECISION
OP AMP
LT1007
LT1037
GAIN ERROR =
CLOSED-LOOP GAIN
OPEN-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
APPLICATIONS INFORMATION
WU
U
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| 70280-0452 | CONN HDR DUAL 88POS .100 SRT AU |
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| 10-89-7722 | CONN HDR DUAL 72POS .100 SRT AU |
| RL1206FR-070R33L | RES 0.33 OHM 1/4W 1% 1206 SMD |
| 929665-09-09-I | CONN HEADER .100 DUAL STR 18POS |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LT1007MH | 制造商:Linear Technology 功能描述:OP Amp Single GP ±22V 8-Pin TO-5 |
| LT1007MH/883 | 制造商:Linear Technology 功能描述:OP Amp Single GP ±22V 8-Pin TO-5 制造商:Linear Technology 功能描述:OP Amp Single GP ??22V 8-Pin TO-5 |
| LT1007MJ8 | 制造商:Linear Technology 功能描述:OP Amp Single GP ±22V 8-Pin CDIP 制造商:Linear Technology 功能描述:OP Amp Single GP ??22V 8-Pin CDIP |
| LT1007MJG | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-NOISE, HIGH-SPEED, PRECISION OPERATIONAL AMPLIFIERS |
| LT1007ML | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Voltage-Feedback Operational Amplifier |
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