công cụ tìm kiếm bảng dữ liệu linh kiện điện tử |
|
ADC78H90 bảng dữ liệu(PDF) 2 Page - Texas Instruments |
|
ADC78H90 bảng dữ liệu(HTML) 2 Page - Texas Instruments |
2 / 24 page ADC78H90 SNAS227D – NOVEMBER 2003 – REVISED MARCH 2013 www.ti.com PIN DESCRIPTIONS AND EQUIVALENT PIN DESCRIPTIONS AND EQUIVALENT CIRCUITS (continued) CIRCUITS (continued) Pin Equivalent Description Pin Equivalent Description Symbol Symbol No. Circuit No. Circuit Digital clock input. The range of Positive analog supply pin. This frequencies for this input is 50 pin should be connected to a kHz to 8 MHz, with ensured quiet +2.7V to +5.25V source 16 SCLK performance at 8 MHz. This and bypassed to GND with a 1 2 AVDD clock directly controls the µF tantalum capacitor and a 0.1 conversion and readout µF ceramic monolithic capacitor processes. located within 1 cm of the power pin. Digital data output. The output samples are clocked out of this Positive digital supply pin. This 15 DOUT pin on falling edges of the pin should be connected to a SCLK pin. +2.7V to AVDD supply, and 13 DVDD bypassed to GND with a 0.1 µF Digital data input. The ceramic monolithic capacitor ADC78H90's Control Register 14 DIN located within 1 cm of the is loaded through this pin on power pin. rising edges of the SCLK pin. The ground return for the Chip select. On the falling edge 3 AGND analog supply and signals. of CS, a conversion process 1 CS begins. Conversions continue The ground return for the digital 12 DGND as long as CS is held low. supply and signals. POWER SUPPLY These devices have limited built-in ESD protection. The leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the MOS gates. Absolute Maximum Ratings (1) (2) Analog Supply Voltage AVDD −0.3V to 6.5V Digital Supply Voltage DVDD −0.3V to AVDD + 0.3V, max 6.5V Voltage on Any Pin to GND −0.3V to AVDD +0.3V Input Current at Any Pin (3) ±10 mA Package Input Current(3) ±20 mA Power Dissipation at TA = 25°C See (4) ESD Susceptibility (5) Human Body Model 2500V Machine Model 250V Soldering Temperature, Infrared, 10 seconds (6) 260°C Junction Temperature +150°C Storage Temperature −65°C to +150°C (1) Absolute Maximum Ratings indicate limits beyond which damage to the device may occur. Operating Ratings indicate conditions for which the device is functional, but do not ensure specific performance limits. For ensured specifications and test conditions, see the Electrical Characteristics. The ensured specifications apply only for the test conditions listed. Some performance characteristics may degrade when the device is not operated under the listed test conditions. (2) If Military/Aerospace specified devices are required, please contact the Texas Instruments Sales Office/ Distributors for availability and specifications. (3) When the input voltage at any pin exceeds the power supplies (that is, VIN < AGND or VIN >VA or VD), the current at that pin should be limited to 10 mA. The 20 mA maximum package input current rating limits the number of pins that can safely exceed the power supplies with an input current of 10 mA to two. (4) The absolute maximum junction temperature (TJmax) for this device is 150°C. The maximum allowable power dissipation is dictated by TJmax, the junction-to-ambient thermal resistance (θJA), and the ambient temperature (TA), and can be calculated using the formula PDMAX = (TJmax − TA)/θJA. In the 16-pinTSSOP, θJA is 96°C/W, so PDMAX = 1,200mW at 25°C and 625 mW at the maximum operating ambient temperature of85°C. Note that the power consumption of this device under normal operation is a maximum of 12 mW. The values for maximum power dissipation listed above will be reached only when the ADC78H90 is operated in a severe fault condition (e.g. when input or output pins are driven beyond the power supply voltages, or the power supply polarity is reversed). Obviously, such conditions should always be avoided. (5) Human body model is 100 pF capacitor discharged through a 1.5 k Ω resistor. Machine model is 220 pF discharged through ZERO ohms (6) See AN450, “Surface Mounting Methods and Their Effect on Product Reliability”, or the section entitled “Surface Mount” found in any post 1986 Texas Instruments Linear Data Book, for other methods of soldering surface mount devices. 2 Submit Documentation Feedback Copyright © 2003–2013, Texas Instruments Incorporated Product Folder Links: ADC78H90 |
Số phần tương tự - ADC78H90_14 |
|
Mô tả tương tự - ADC78H90_14 |
|
|
Link URL |
Chính sách bảo mật |
ALLDATASHEET.VN |
Cho đến nay ALLDATASHEET có giúp ích cho doanh nghiệp của bạn hay không? [ DONATE ] |
Alldatasheet là | Quảng cáo | Liên lạc với chúng tôi | Chính sách bảo mật | Trao đổi link | Tìm kiếm theo nhà sản xuất 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 |