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參數資料
型號: TLC549IDR
廠商: TEXAS INSTRUMENTS INC
元件分類: ADC
英文描述: 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8
封裝: GREEN, PLASTIC, SOIC-8
文件頁數: 11/18頁
文件大?。?/td> 518K
代理商: TLC549IDR
TLC548C, TLC548I, TLC549C, TLC549I
8-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL
SLAS067C – NOVEMBER 1983 – REVISED SEPTEMBER 1996
2
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
description (continued)
Operation of the TLC548 and the TLC549 is very similar to that of the more complex TLC540 and TLC541
devices; however, the TLC548 and TLC549 provide an on-chip system clock that operates typically at 4 MHz
and requires no external components. The on-chip system clock allows internal device operation to proceed
independently of serial input/output data timing and permits manipulation of the TLC548 and TLC549 as desired
for a wide range of software and hardware requirements. The I/O CLOCK together with the internal system clock
allow high-speed data transfer and conversion rates of 45 500 conversions per second for the TLC548, and
40 000 conversions per second for the TLC549.
Additional TLC548 and TLC549 features include versatile control logic, an on-chip sample-and-hold circuit that
can operate automatically or under microprocessor control, and a high-speed converter with differential
high-impedance reference voltage inputs that ease ratiometric conversion, scaling, and circuit isolation from
logic and supply noises. Design of the totally switched-capacitor successive-approximation converter circuit
allows conversion with a maximum total error of
±0.5 least significant bit (LSB) in less than 17 s.
The TLC548C and TLC549C are characterized for operation from 0
°C to 70°C. The TLC548I and TLC549I are
characterized for operation from – 40
°C to 85°C.
functional block diagram
REF –
6
4
8
DATA
OUT
8-Bit
Analog-to
Digital
Converter
(Switched-
Capacitors)
8-to-1 Data
Selector
and
Driver
Output
Data
Regiser
Internal
System
Clock
Sample
and
Hold
7
5
2
3
1
ANALOG IN
REF +
CS
I/O CLOCK
Control
Logic and
Output Counter
typical equivalent inputs
INPUT CIRCUIT IMPEDANCE DURING SAMPLING MODE
INPUT CIRCUIT IMPEDANCE DURING HOLD MODE
1 k
TYP
Ci = 60 pF TYP
(equivalent input
capacitance)
5 M
TYP
ANALOG IN
相關PDF資料
PDF描述
TLC549IDG4 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8
TLC549CDRG4 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8
TLC549CPE4 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP8
TLC549IDRG4 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8
TLC549IPE4 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDIP8
相關代理商/技術參數
參數描述
TLC549IDRG4 功能描述:模數轉換器 - ADC 8-Bit 40kSPS Serial Out Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC549IP 功能描述:模數轉換器 - ADC 8bit A/D w/Serial RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC549IP 制造商:Texas Instruments 功能描述:IC 8BIT ADC 549 DIP8
TLC549IPE4 功能描述:模數轉換器 - ADC 8-Bit 40kSPS Serial Out Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
TLC549IPS 功能描述:模數轉換器 - ADC 8-Bit 40kSPS Serial Out Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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