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TLV1571_00

更新时间： 2024-11-09 03:59:23
品牌 Logo 应用领域
德州仪器 - TI 转换器
页数 文件大小 规格书
33页 627K
描述
2.7 V TO 5.5 V, 1-/8-CHANNEL, 10-BIT, PARALLEL ANALOG-TO-DIGITAL CONVERTERS

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TLV1571_00 数据手册

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TLV1571, TLV1578  
2.7 V TO 5.5 V, 1-/8-CHANNEL, 10-BIT,  
PARALLEL ANALOG-TO-DIGITAL CONVERTERS  
SLAS170D –MARCH 1999 – REVISED JULY 2000  
features  
TLV1578  
DA PACKAGE  
(TOP VIEW)  
Fast Throughput Rate: 1.25 MSPS at 5 V,  
625 KSPS at 3 V  
CH0  
CH1  
CH2  
CH3  
CS  
WR  
RD  
CLK  
DGND  
CH7  
CH6  
CH5  
CH4  
MO  
1
32  
31  
30  
29  
28  
27  
26  
25  
24  
23  
22  
21  
20  
19  
18  
17  
Wide Analog Input: 0 V to AV  
DD  
2
Differential Nonlinearity Error: < ± 1 LSB  
3
4
Integral Nonlinearity Error: < ± 1 LSB  
8-to-1 Analog MUX – TLV1578  
Internal OSC  
5
6
AIN  
AV  
7
DD  
8
AGND  
REFM  
REFP  
CSTART  
D9/A1  
D8/A0  
D7  
9
Single 2.7-V to 5.5-V Supply Operation  
Low Power: 12 mW at 3 V and 35 mW at 5 V  
Auto Power Down of 1 mA Max  
Software Power Down: 10 µA Max  
Hardware Configurable  
10  
11  
12  
13  
14  
15  
16  
DV  
DD  
INT/EOC  
D0  
D1  
D2  
D3  
D4  
D6  
D5  
DSP and Microcontroller Compatible  
Parallel Interface  
TLV1571  
DW OR PW PACKAGE  
(TOP VIEW)  
Binary/Twos Complement Output  
Hardware Controlled Extended Sampling  
CS  
WR  
RD  
1
24  
23  
22  
21  
20  
19  
18  
17  
16  
15  
14  
13  
NC  
AIN  
Channel Sweep Mode Operation and  
Channel Select  
2
3
AV  
DD  
4
CLK  
DGND  
AGND  
REFM  
REFP  
CSTART  
D9/A1  
D8/A0  
D7  
Hardware or Software Start of Conversion  
applications  
5
6
DV  
DD  
7
INT/EOC  
D0  
8
Mass Storage and HDD  
Automotive  
9
D1  
D2  
D3  
D4  
10  
11  
12  
D6  
D5  
Digital Servos  
Process Control  
General-Purpose DSP  
Image Sensor Processing  
NC – No internal connection  
description  
The TLV1571/1578 is a 10-bit data acquisition system that combines an 8-channel input multiplexer (MUX), a  
high-speed 10-bit ADC, and a parallel interface. The device contains two on-chip control registers allowing  
control of channel selection, software conversion start, and power down via the bidirectional parallel port. The  
control registers can be set to a default mode by applying a dummy RD signal when WR is tied low. This allows  
the TLV1571/1578 to be configured by hardware. The MUX is independently accessible. This allows the user to  
insert a signal conditioning circuit such as an antialiasing filter or an amplifier, if required, between the MUX and  
the ADC. Therefore, one signal conditioning circuit can be used for all eight channels. The TLV1571 is a single  
channel analog input device with all the same functions as the TLV1578.  
The TLV1571/TLV1578 operates from a single 2.7-V to 5.5-V power supply. It accepts an analog input range  
from0VtoAV anddigitizestheinputatamaximum1.25MSPSthroughputrateat5V. Thepowerdissipations  
DD  
are only 12 mW with a 3-V supply or 35 mW with a 5-V supply. The device features an auto power-down mode  
that automatically powers down to 1 mA 50 ns after conversion is performed. In software power-down mode, the  
ADC is further powered down to only 10 µA.  
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.  
Copyright 2000, 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.  
1
POST OFFICE BOX 655303 • DALLAS, TEXAS 75265  
1234567...33

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