Os motores de busca de Datasheet de Componentes eletrônicos |
|
TLC27L1MP Folha de dados(PDF) 20 Page - Texas Instruments |
|
TLC27L1MP Folha de dados(HTML) 20 Page - Texas Instruments |
20 / 32 page TLC27L1, TLC27L1A, TLC27L1B LinCMOS LOW POWER OPERATIONAL AMPLIFIERS SLOS154B− DECEMBER 1995 − REVISED JUNE 2005 20 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 PARAMETER MEASUREMENT INFORMATION single-supply versus split-supply test circuits (continued) VDD VDD + 1/2 VDD 20 Ω VO 2 k Ω 20 Ω VDD − 20 Ω 20 Ω 2 k Ω VO (a) SINGLE SUPPLY (b) SPLIT SUPPLY Figure 34. Noise-Test Circuit 100 Ω VDD 10 k Ω VO CL 1/2 VDD VI VI CL 100 Ω VO 10 k Ω VDD + VDD − (a) SINGLE SUPPLY (b) SPLIT SUPPLY Figure 35. Gain-of-100 Inverting Amplifier input bias current Due to the high input impedance of the TLC27L1 operational amplifiers, attempts to measure the input bias current can result in erroneous readings. The bias current at normal room ambient temperature is typically less than 1 pA, a value that is easily exceeded by leakages on the test socket. Two suggestions are offered to avoid erroneous measurements: 1. Isolate the device from other potential leakage sources. Use a grounded shield around and between the device inputs (see Figure 36). Leakages that would otherwise flow to the inputs are shunted away. 2. Compensate for the leakage of the test socket by actually performing an input bias-current test (using a picoammeter) with no device in the test socket. The actual input bias current can then be calculated by subtracting the open-socket leakage readings from the readings obtained with a device in the test socket. One word of caution: many automatic testers as well as some bench-top operational amplifier testers use the servo-loop technique with a resistor in series with the device input to measure the input bias current (the voltage drop across the series resistor is measured and the bias current is calculated). This method requires that a device be inserted into the test socket to obtain a correct reading; therefore, an open-socket reading is not feasible using this method. |
Nº de peça semelhante - TLC27L1MP |
|
Descrição semelhante - TLC27L1MP |
|
|
Ligação URL |
Privacy Policy |
ALLDATASHEETPT.COM |
ALLDATASHEET é útil para você? [ DONATE ] |
Sobre Alldatasheet | Publicidade | Contato conosco | Privacy Policy | roca de Link | Lista de Fabricantes All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |