- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄385929 > TLC2810Z (Texas Instruments, Inc.) LinCMOS Precision Dual Operational Amplifier(雙路低噪聲，單電源運放) PDF資料下載
參數(shù)資料
| 型號： | TLC2810Z |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | LinCMOS Precision Dual Operational Amplifier(雙路低噪聲，單電源運放) |
| 中文描述： | LinCMOS精密雙運算放大器（雙路低噪聲，單電源運放） |
| 文件頁數(shù)： | 20/23頁 |
| 文件大小： | 503K |
| 代理商： | TLC2810Z |
TLC2810Z, TLC2810Y
LinCMOS
PRECISION
DUAL OPERATIONAL AMPLIFIERS
SLOS120A – AUGUST 1993 – REVISED AUGUST 1994
2–20
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
POST OFFICE BOX 1443
HOUSTON, TEXAS 77251–1443
APPLICATION INFORMATION
input characteristics
The TLC2810Z is specified with a minimum and a maximum input voltage that, if exceeded at either input, could
cause the device to malfunction. Exceeding this specified range is a common problem, especially in
single-supply operation. The lower range limit includes the negative rail, while the upper range limit is specified
at V
DD
–1 V at T
A
= 25
°
C and at V
DD
– 1.2 V at all other temperatures.
The use of the polysilicon-gate process and the careful input circuit design give the TLC2810Z very good input
offset voltage drift characteristics relative to conventional metal-gate processes. Offset voltage drift in CMOS
devices is influenced by threshold voltage shifts caused by polarization of the phosphorus dopant implanted in
the oxide. Placing the phosphorus dopant in a conductor (such as a polysilicon gate) alleviates the polarization
problem, thus reducing threshold voltage shifts by more than an order of magnitude. The offset voltage drift with
time has been calculated to be typically 0.1
μ
V/month, including the first month of operation.
Because of the extremely high input impedance and resulting low-bias current requirements, the TLC2810Z is
well suited for low-level signal processing; however, leakage currents on printed-circuit boards and sockets can
easily exceed bias-current requirements and cause a degradation in device performance. It is good practice to
include guard rings around inputs (similar to those of Figure 29 in the Parameter Measurement Information
section). These guards should be driven from a low-impedance source at the same voltage level as the
common-mode input (see Figure 33).
Unused amplifiers should be connected as grounded voltage followers to avoid possible oscillation.
–
+
–
+
–
+
(a) NONINVERTING AMPLIFIER
(b) INVERTING AMPLIFIER
(c) UNITY-GAIN AMPLIFIER
VO
VI
VO
VO
VI
VI
Figure 33. Guard-Ring Schemes
noise performance
The noise specifications in operational amplifier circuits are greatly dependent on the current in the first-stage
differential amplifier. The low input bias current requirements of the TLC2810Z results in a very low noise current,
which is insignificant in most applications. This feature makes the devices especially favorable over bipolar
devices when using values of circuit impedance greater than 50 k
since bipolar devices exhibit greater noise
currents.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| TLC320AC02(中文) | Single-Supply Analog Interface Circuit(單電源模擬接口) |
| TLC320AD75(中文) | 20-Bit Sigma-Delta Stereo ADC Circuit(20位ΣΔ高性能音頻ADC) |
| TLC320AD90C | Stereo Audio Codec(立體聲音頻編碼譯碼器) |
| TLC34076-110 | Color-Palette(110MHz,與TLC34075兼容，另具24位和16位真彩色模式) |
| TLC34076-85 | Color-Palette(85MHz,與TLC34075兼容，另具24位和16位真彩色模式) |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLC2810ZP | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| TLC2906AIPWR | 制造商:Texas Instruments 功能描述: |
| TLC2906IPW | 制造商:Texas Instruments 功能描述: |
| TLC2932AIPW | 功能描述:鎖相環(huán) - PLL Phase Locked Loop Systems RoHS:否 制造商:Silicon Labs 類型:PLL Clock Multiplier 電路數(shù)量:1 最大輸入頻率:710 MHz 最小輸入頻率:0.002 MHz 輸出頻率范圍:0.002 MHz to 808 MHz 電源電壓-最大:3.63 V 電源電壓-最小:1.71 V 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:QFN-36 封裝:Tray |
| TLC2932AIPW | 制造商:Texas Instruments 功能描述:IC PHASE LOCK LOOP 75MHZ 14-TSSOP 制造商:Texas Instruments 功能描述:IC, PHASE LOCK LOOP, 75MHZ, 14-TSSOP |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。