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參數資料
| 型號： | TLV1548I |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | LOW-VOLTAGE 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 4/8 ANALOG INPUTS |
| 中文描述： | 低電壓10位模擬到數字與串行控制和4月8日模擬輸入變換器 |
| 文件頁數： | 1/37頁 |
| 文件大小： | 577K |
| 代理商： | TLV1548I |
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TLV1544C, TLV1544I, TLV1548C, TLV1548I, TLV1548M
LOW-VOLTAGE 10-BIT ANALOG-TO-DIGITAL CONVERTERS
WITH SERIAL CONTROL AND 4/8 ANALOG INPUTS
SLAS139C – DECEMBER 1996 – REVISED JANUARY 1999
1
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
Conversion Time
≤
10
μ
s
10-Bit-Resolution ADC
Programmable Power-Down
Mode . . . 1
μ
A
Wide Range Single-Supply Operation of
2.7 V dc to 5.5 V dc
Analog Input Range of 0 V to V
CC
Built-in Analog Multiplexer with 8 Analog
Input Channels
TMS320 DSP and Microprocessor SPI and
QSPI Compatible Serial Interfaces
End-of-Conversion (EOC) Flag
Inherent Sample-and-Hold Function
Built-In Self-Test Modes
Programmable Power and Conversion Rate
Asynchronous Start of Conversion for
Extended Sampling
Hardware I/O Clock Phase Adjust Input
description
The TLV1544 and TLV1548 are CMOS 10-bit
switched-capacitor successive-approximation (SAR)
analog-to-digital (A/D) converters. Each device
has a chip select (CS), input-output clock (I/O
CLK), data input (DATA IN) and serial data output
(DATA OUT) that provide 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 devices allow 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 TLV1544 and TLV1548 are 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.
SPI and QSPI are registered trademarks of Motorola, Inc.
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A0
A1
A2
A3
A4
A5
A6
A7
CSTART
GND
V
CC
EOC
I/O CLK
DATA IN
DATA OUT
CS
REF+
REF–
FS
INV CLK
DB OR J PACKAGE
(TOP VIEW)
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DATA OUT
DATA IN
I/O CLK
EOC
V
CC
A0
A1
A2
CS
REF+
REF–
FS
INV CLK
GND
CSTART
A3
D OR PW PACKAGE
(TOP VIEW)
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2
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I/O CLK
DATA IN
DATA OUT
CS
REF+
A3
A4
A5
A6
A7
A
A
A
V
E
G
I
F
R
C
FK PACKAGE
(TOP VIEW)
C
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.
Copyright
1999, Texas Instruments Incorporated
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| TLV2217 | LOW-DROPOUT 3.3-V FIXED-VOLTAGE REGULATORS |
| TLV2217-25PW | LOW DROPOUT FIXED VOLTAGE REGULATORS |
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TLV1548IDB | 功能描述:模數轉換器 - ADC 10bit A/D w/DSP Int 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 |
| TLV1548IDBG4 | 功能描述:模數轉換器 - ADC 10-Bit 85 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 |
| TLV1548IDBR | 功能描述:模數轉換器 - ADC 10-Bit 85 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 |
| TLV1548IDBRG4 | 功能描述:模數轉換器 - ADC 10-Bit 85 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 |
| TLV1548M | 制造商:TI 制造商全稱:Texas Instruments 功能描述:LOW-VOLTAGE 10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 4/8 ANALOG INPUTS |
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