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參數(shù)資料
| 型號： | ICL7650SCPD |
| 廠商： | Intersil |
| 文件頁數(shù)： | 11/13頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC OP AMP CHOP STAB 2MHZ 14-PDIP |
| 標準包裝： | 25 |
| 放大器類型： | 斷路器（零漂移） |
| 電路數(shù)： | 1 |
| 轉(zhuǎn)換速率： | 2.5 V/µs |
| 增益帶寬積： | 2MHz |
| 電流 - 輸入偏壓： | 4pA |
| 電壓 - 輸入偏移： | 700µV |
| 電流 - 電源： | 2mA |
| 電流 - 輸出 / 通道： | 30mA |
| 電壓 - 電源，單路/雙路(±)： | 4.5 V ~ 16 V，±2.25 V ~ 8 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 通孔 |
| 封裝/外殼： | 14-DIP（0.300"，7.62mm） |
| 供應(yīng)商設(shè)備封裝： | 14-PDIP |
| 包裝： | 管件 |
7
FN2920.10
April 12, 2007
Normal logarithmic amplifiers are limited in dynamic range in
the voltage-input mode by their input-offset voltage. The
built-in temperature compensation and convenience
features of the ICL8048 can be extended to a voltage-input
dynamic range of close to 6 decades by using the ICL7650S
to offset-null the ICL8048, as shown in Figure 6. The same
concept can also be used with such devices as the HA2500
or HA2600 families of op amps to add very low offset voltage
capability to their very high slew rates and bandwidths. Note
that these circuits will also have their DC gains, CMRR, and
PSRR enhanced.
7650S
+
-
0.1
μF
OUTPUT
C
R
C
R2
R1
CLAMP
INPUT
0.1
μF
(R1||R2) ≥ 100kΩ
For Full Clamp Effect
7650S
-
+
0.1
μF
OUT
CLAMP
IN
0.1
μF
741
-
+
-7.5V
+7.5V
+15V
-15V
10k
Ω
10k
Ω
NOTE: R1||R2 indicates the parallel combination of R1 and R2.
FIGURE 3. INVERTING AMPLIFIER WITH (OPTIONAL) CLAMP
FIGURE 4. USING 741 TO BOOST OUTPUT DRIVE CAPACITY
7650S
+
-
0.1
μF
VOUT
C
R
C
CLAMP
VIN
0.1
μF
VTH
200k
Ω - 2MΩ
R
FIGURE 5. LOW OFFSET COMPARATOR
A1
+
-
+
-
A2
ICL7650S
+
-
VOUT
R1
15.9k
Ω
680
Ω
R2
GROUND
RREF
R3
Q1
2k
Ω
V+
Q2
R5
VREF
IREF
GAIN
33k
Ω
33k
Ω
150pF
C1
R0
10k
Ω
(LOW T.C.)
IIN
RIN
VIN
715
10
12
13
16
(+15V)
1k
Ω
4
5
2
1
ICL8048
NOTE: For further Applications Assistance, see AN053.
FIGURE 6. ICL8048 OFFSET NULLED BY ICL7650S
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ICL7650SCPDR2207 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ICL7650SCPDZ | 功能描述:運算放大器 - 運放 W/ANNEAL OPAMP SUPER CHOPPER STABILIZED RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
| ICL7650SIJA-1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ICL7650SIPA-1 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| ICL7650SIPD | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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