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参数资料
| 型号： | ADT7318ARU |
| 厂商： | ANALOG DEVICES INC |
| 元件分类： | 温度/湿度传感器 |
| 英文描述： | DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), 3Cel, RECTANGULAR, SURFACE MOUNT |
| 封装： | QSOP-16 |
| 文件页数： | 1/24页 |
| 文件大小： | 279K |
| 代理商： | ADT7318ARU |
ADT7316/7317/7318
=
REV. PrH 07/’01
Information furnished by Analog Devices is believed to be accurate and
reliable. However, no responsibility is assumed by Analog Devices for its
use, nor for any infringements of patents or other rights of third parties
which may result from its use. No license is granted by implication or
otherwise under any patent or patent rights of Analog Devices.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781/329-4700
World Wide Web Site: http://www.analog.com
Fax: 781/326-8703
Analog Devices, Inc., 2001
SPI/I
2CR Compatible, 10-Bit Digital Temperature
Sensor and Quad Voltage Output 12/10/8-Bit DAC
Preliminary Technical Data
PRELIMINARY TECHNICAL DATA
FEATURES
ADT7316 - Four 12-Bit DACs
ADT7317 - Four 10-Bit DACs
ADT7318 - Four 8-Bit DACs
Buffered Voltage Output
Guaranteed Monotonic By Design Over All Codes
10-Bit Temperature to Digital Converter
Temperature range:
-40
oC to +125oC
Temperature Sensor Accuracy of ±2oC
Supply Range : + 2.7 V to + 5.5 V
DAC Output Range: 0 - VREF
Power-Down Current 1
A
Internal 2.25 VRef Option
Double-Buffered Input Logic
Buffered / Unbuffered Reference Input Option
Power-on Reset to Zero Volts
Simultaneous Update of Outputs (
LDAC Function)
On-Chip Rail-to-Rail Output Buffer Amplifier
I2C, SPITM, QSPITM, MICROWIRETM and DSP-Compatible 5-
wire Serial Interface
16-Lead TSSOP Package
APPLICATIONS
Portable Battery Powered Instruments
Personal Computers
Telecommunications Systems
Electronic Test Equipment
Domestic Appliances
Process Control
GENERAL DESCRIPTION
The ADT7316/7317/7318 combines a 10-Bit Tempera-
ture-to-Digital Converter and a quad 12/10/8-Bit DAC
respectively, in a 16-Lead QSOP package. This includes a
bandgap temperature sensor and a 10-bit ADC to monitor
and digitize the temperature reading to a resolution of
0.25
oC. The ADT7316/17/18 operates from a single
+2.7 V to + 5.5 V supply. The output voltage of the DAC
ranges from 0 V to VDD , with an output voltage settling
time of typ 7 msec. The ADT7316/17/18 provides two
serial interface options, a four-wire serial interface which
is compatible with SPI
TM, QSPITM, MICROWIRETM and
DSP interface standards; and a two-wire I
2C interface. It
features a standby mode that is controlled via the serial
interface.
The reference for the four DACs is derived either inter-
nally or from two reference pins (one per DAC pair) .The
outputs of all DACs may be updated simultaneously using
the software LDAC function or external LDAC pin. The
ADT7316/7317/7318 incorporates a power-on-reset cir-
cuit, which ensures that the DAC output powers-up to
zero volts and it remains there until a valid write takes
place.
The ADT7316/7317/7318’s wide supply voltage range,
low supply current and SPI/I
2C-compatible interface,
make it ideal for a variety of applications, including per-
sonal computers, office equipment and domestic appli-
ances.
I
2C is a registered trademark of Philips Corporation
* Protected by U.S. Patent No. 5,969,657; other patents pending.
SPI and QSPI are trademarks of Motorola, INC.
MICROWIRE is a trademark of National Semiconductor Corporation.
FUNCTIONAL BLOCK DIAGRAM
V
RE F
AB
PO W ER-DO W N
LOGIC
GA IN -
SE LE CT
LO GI C
A/D
CONV ER TER
CONF IG .
R EG IST ER
MASK
T
HIGH
STA T U S
T
LO W
ON -C HIP
TE M P .
SEN SOR
AN ALO G
MU X
T EM P VALU E
R E GI ST ER
LIMI T
C O MPAR ATO R
ADD R ESS
R EG ISTER
IN P U T & D A C
R EG I ST ER
IN PU T & D A C
R EG IST ER
INPU T & DA C
R E GI ST ER
IN P U T & D A C
REG I STE R
S TRING
DA C A
ST RING
DA C B
S TRING
DA C C
INTE RNA L
RE FE RENCE
INTE RFA C E
LOG I C
D+
D-
CS
LD A C
SDA / D
IN
D
OU T
/A D D
GN D
AL ERT /OTI
V
REF
CD
V
OU T
A
V
OU T
B
V
OU T
D
V
OU T
C
L DAC
V
DD
SC L / SC L K
B U FFE R
BU FF ER
B U FFE R
2. 25 V V
RE F
2.25 V V
RE F
ST R IN G
DA C D
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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADT7320 | 制造商:AD 制造商全称:Analog Devices 功能描述:±0.25°C Accurate, 16-Bit Digital SPI Temperature Sensor |
| ADT7320_11 | 制造商:AD 制造商全称:Analog Devices 功能描述:?±0.25?°C Accurate, 16-Bit Digital SPI Temperature Sensor |
| ADT7320UCPZ | 制造商:AD 制造商全称:Analog Devices 功能描述:±0.25°C Accurate, 16-Bit Digital SPI Temperature Sensor |
| ADT7320UCPZ-R2 | 功能描述:板上安装温度传感器 +/-0.25C accurate SPI Temperature Sensor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
| ADT7320UCPZ-RL7 | 功能描述:板上安装温度传感器 +/-0.25C accurate SPI Temperature Sensor RoHS:否 制造商:Omron Electronics 输出类型:Digital 配置: 准确性:+/- 1.5 C, +/- 3 C 温度阈值: 数字输出 - 总线接口:2-Wire, I2C, SMBus 电源电压-最大:5.5 V 电源电压-最小:4.5 V 最大工作温度:+ 50 C 最小工作温度:0 C 关闭: 安装风格: 封装 / 箱体: 设备功能:Temperature and Humidity Sensor |
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