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參數資料
| 型號： | TLV1548QDBRG4Q1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 8-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封裝： | GREEN, PLASTIC, SSOP-20 |
| 文件頁數： | 1/34頁 |
| 文件大小： | 532K |
| 代理商： | TLV1548QDBRG4Q1 |
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TLV1548Q1
LOW VOLTAGE 10BIT ANALOGTODIGITAL CONVERTER
WITH SERIAL CONTROL AND 8 ANALOG INPUTS
SGLS172B JUNE 2003 REVISED APRIL 2008
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
D Qualified for Automotive Applications
D ESD Protection Exceeds 2000 V Per
MIL-STD-883, Method 3015; Exceeds 200 V
Using Machine Model (C = 200 pF, R = 0)
D Conversion Time ≤ 10 s
D 10-Bit-Resolution ADC
D Programmable Power-Down
Mode ...1
A
D Wide Range Single-Supply Operation of
2.7 V dc to 5.5 V dc
D Analog Input Range of 0 V to VCC
D Built-in Analog Multiplexer with 8 Analog
Input Channels
D TMS320 DSP and Microprocessor SPI and
QSPI Compatible Serial Interfaces
D End-of-Conversion (EOC) Flag
D Inherent Sample-and-Hold Function
D Built-In Self-Test Modes
D Programmable Power and Conversion Rate
D Asynchronous Start of Conversion for
Extended Sampling
D Hardware I/O Clock Phase Adjust Input
description
The TLV1548 is a CMOS 10-bit switched-capacitor successive-approximation (SAR) analog-to-digital (A/D)
converter. The device has a chip select (CS), input-output clock (I/O CLK), data input (DATA IN) and serial data
output (DATA OUT) that provides a direct 4-wire synchronous serial peripheral interface (SPI
, QSPI) port
of a host microprocessor. When interfacing with a TMS320 DSP, an additional frame sync signal (FS) indicates
the start of a serial data frame. The device allows high-speed data transfers from the host. The INV CLK input
provides further timing flexibility for the serial interface.
In addition to a high-speed converter and versatile control capability, the device has an on-chip 11-channel
multiplexer that can select any one of eight analog inputs or any one of three internal self-test voltages. The
sample-and-hold function is automatic except for the extended sampling cycle, where the sampling cycle is
started by the falling edge of asynchronous CSTART. At the end of the A/D conversion, the end-of-conversion
(EOC) output goes high to indicate that the conversion is complete. The TLV1548 is designed to operate with
a wide range of supply voltages with very low power consumption. The power saving feature is further enhanced
with a software-programmed power-down mode and conversion rate. The converter incorporated in the device
features differential high-impedance reference inputs that facilitate ratiometric conversion, scaling, and
isolation of analog circuitry from logic and supply noise. A switched-capacitor design allows low-error
conversion over the full operating temperature range.
The TLV1548 has eight analog input channels. The TLV1548Q is characterized for operation over the full
automotive temperature range of 40
°C to 125°C.
Copyright
2008 Texas Instruments Incorporated
PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of Texas Instruments
standard warranty. Production processing does not necessarily include
testing of all parameters.
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
SPI and QSPI are registered trademarks of Motorola, Inc.
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A0
A1
A2
A3
A4
A5
A6
A7
CSTART
GND
VCC
EOC
I/O CLK
DATA IN
DATA OUT
CS
REF+
REF
FS
INV CLK
DB PACKAGE
(TOP VIEW)
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV1548QDBRQ1 | 功能描述:模數轉換器 - ADC 10B Analog/Digital Converter 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 |
| TLV1549 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL |
| TLV1549C | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL |
| TLV1549CD | 功能描述:模數轉換器 - ADC 3.3V 10bit A/D 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 |
| TLV1549CDG4 | 功能描述:模數轉換器 - ADC 10-Bit 38 kSPS Serial Out 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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