- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄180474 > MAT04FSZ-REEL (ANALOG DEVICES INC) 30 mA, 40 V, 4 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR PDF資料下載
參數(shù)資料
| 型號(hào)： | MAT04FSZ-REEL |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 小信號(hào)晶體管 |
| 英文描述： | 30 mA, 40 V, 4 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR |
| 封裝： | SO-14 |
| 文件頁數(shù)： | 10/12頁 |
| 文件大?。?/td> | 853K |
| 代理商： | MAT04FSZ-REEL |
MAT04
–7–
REV. D
Figure 4. Temperature Independent Current Sink, IOUT = 10 V/R
NONLINEAR FUNCTIONS
An application where precision matched-transistors are a power-
ful tool is in the generation of nonlinear functions. These circuits
are based on the transistor’s logarithmic property, which takes
the following idealized form:
V
kT
q
In
l
BE
C
S
=
The MAT04, with its excellent logarithmic conformance, main-
tains this idealized function over many decades of collector
current. This, in addition to the stringent parametric matching
of the MAT04, enables the implementation of extremely accu-
rate log/antilog circuits.
The circuit of Figure 5 is a vector summer that adds and sub-
tracts logged inputs to generate the following transfer function:
VV
V
OUT
A
B
=+
1
2
22
This circuit uses two MAT04 and maintains an accuracy of
better than 0.5% over an input range of 10 mV to 10 V. The
layout of the MAT04s reduces errors due to matching and
temperature differences between the two precision quad matched
transistors.
Op amps A1 and A2 translate the input voltages into logarithmic
valued currents (IA and IB in Figure 5) that flow through tran-
sistor Q3 and Q5. These currents are summed by transistor Q4
(
IO = IA + IB = ll
1
2
+
),
which feeds the current-to-voltage converter consisting of op amp
A3. To maintain accuracy, 1% metal-film resistors should be used.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| MAT14ARZ-RL | 30 mA, 40 V, 4 CHANNEL, NPN, Si, SMALL SIGNAL TRANSISTOR, MS-012AB |
| MAX11043ATL+ | 4-Channel, 16-Bit, Simultaneous Sampling ADCs with PGA, Filter, and 8-/12-Bit Dual-Stage DAC; Package: THIN QFN, 40 pin ; Temperature Range: -40°C to +125°C |
| MAX13223EEUP+ | ±70V Fault-Protected, 3.0V to 5.5V, 2Tx/2Rx RS-232 Transceiver; Package: TSSOP;20 pin;45 mm² ; Temperature: -40°C to +85°C |
| MAX13362ATL/V+ | 24-Channel Automotive Switch Monitor; Package: TQFN;40 pin;37 mm² ; Temperature: -40°C to +125°C |
| MAX14752EUE+ | 8-Channel/Dual 4-Channel 72V Analog Mux; Package: TSSOP, 16 pin ; Temperature Range: -40°C to +85°C |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAT04FY | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述: |
| MAT-04FY | 制造商:AD 制造商全稱:Analog Devices 功能描述:Matched Monolithic Quad Transistor |
| MAT04T | 制造商:TBA (ELECTRO CONDUCTIVE PRODUCTS) 功能描述:BENCH MAT |
| MAT-0TDC210 | 制造商:JDSU 制造商全稱:JDS Uniphase Corporation 功能描述:MEMS Variable Optical Attenuators |
| MAT-0TDO210 | 制造商:JDSU 制造商全稱:JDS Uniphase Corporation 功能描述:MEMS Variable Optical Attenuators |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。