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參數(shù)資料
| 型號： | MAX1617AMEE |
| 廠商： | MAXIM INTEGRATED PRODUCTS INC |
| 元件分類： | 溫度/濕度傳感器 |
| 英文描述： | Remote/Local Temperature Sensor with SMBus Serial Interface |
| 中文描述： | DIGITAL TEMP SENSOR-SERIAL, 8BIT(s), 3Cel, RECTANGULAR, SURFACE MOUNT |
| 封裝： | PLASTIC, QSOP-16 |
| 文件頁數(shù)： | 13/18頁 |
| 文件大?。?/td> | 234K |
| 代理商： | MAX1617AMEE |
successful read of the status byte, unless the fault per-
sists. Note that the
ALERT
interrupt latch is not auto-
matically cleared when the status flag bit is cleared.
When auto-converting, if the T
HIGH
and T
LOW
limits are
close together, it’s possible for both high-temp and low-
temp status bits to be set, depending on the amount of
time between status read operations (especially when
converting at the fastest rate). In these circumstances,
it’s best not to rely on the status bits to indicate rever-
sals in long-term temperature changes and instead use
a current temperature reading to establish the trend
direction.
Conversion Rate Byte
The conversion rate register (Table 7) programs the time
interval between conversions in free-running auto-convert
mode. This variable rate control reduces the supply cur-
rent in portable-equipment applications. The conversion
rate byte’s POR state is 02h (0.25Hz). The MAX1617A
looks only at the 3 LSB bits of this register, so the upper 5
bits are “don’t care” bits, which should be set to zero. The
conversion rate tolerance is ±25% at any rate setting.
Valid A/D conversion results for both channels are avail-
able one total conversion time (125ms nominal, 156ms
maximum) after initiating a conversion, whether conver-
sion is initiated via the RUN/STOP bit, hardware
STBY
pin, one-shot command, or initial power-up. Changing the
conversion rate can also affect the delay until new results
are available (Table 8).
Manufac turer and Devic e ID Codes
Two ROM registers provide manufacturer and device ID
codes (Table 4). Reading the manufacturer ID returns
4Dh, which is the ASCII code “M” (for Maxim). Reading
the device ID returns 01h, indicating a MAX1617A
device. If READ WORD 16-bit SMBus protocol is
employed (rather than the 8-bit READ BYTE), the least
significant byte contains the data and the most signifi-
cant byte contains 00h in both cases.
S lave Addresses
The MAX1617A appears to the SMBus as one device
having a common address for both ADC channels. The
device address can be set to one of nine different val-
ues by pin-strapping ADD0 and ADD1 so that more
than one MAX1617A can reside on the same bus with-
out address conflicts (Table 9).
M
Remote/Loc al Temperature S ensor
with S MBus S erial Interfac e
______________________________________________________________________________________
13
RUN/
STOP
6
0
0
POR
STATE
Standby mode control
bit. If high, the device
immediately stops con-
verting and enters stand-
by mode. If low, the
device converts in either
one-shot or timer mode.
Masks all
ALERT
inter-
rupts when high.
FUNCTION
RFU
5–0
0
Reserved for future use
MASK
7 (MSB)
BIT
NAME
Table 5. Configuration-Byte Bit
Assignments
Table 7. Conversion-Rate Control Byte
Table 6. Status-Byte Bit Assignments
*These flags stay high until cleared by POR, or until the status
byte register is read.
LHIGH*
6
A high indicates that the local high-
temperature alarm has activated.
A high indicates that the ADC is busy
converting.
FUNCTION
LLOW*
5
A high indicates that the local low-
temperature alarm has activated.
RHIGH*
4
A high indicates that the remote high-
temperature alarm has activated.
RLOW*
3
A high indicates that the remote low-
temperature alarm has activated.
OPEN*
2
A high indicates a remote-diode conti-
nuity (open-circuit) fault.
Reserved for future use (returns 0)
RFU
1
0
BUSY
7
(MSB)
RFU
(LSB)
Reserved for future use (returns 0)
BIT
NAME
0.125
0.25
0.5
1
2
4
8
01h
02h
03h
04h
05h
06h
07h
33
35
48
70
128
225
425
30
0.0625
00h
RFU
08h to
FFh
—
DATA
CONVERSION
RATE
(Hz)
AVERAGE SUPPLY
CURRENT
(μA typ, at V
CC
= 3.3V)
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| MAX1617AMEE+ | 功能描述:板上安裝溫度傳感器 Remote/Local w/SMBus Serial Interface RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX1617AMEE+ | 制造商:Maxim Integrated Products 功能描述:IC TEMP SENSOR 8BIT ?2.5 |
| MAX1617AMEE+T | 功能描述:板上安裝溫度傳感器 Remote/Local w/SMBus Serial Interface RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX1617AMEE+TW | 功能描述:板上安裝溫度傳感器 Remote/Local Temperature Sensor with SMBus Serial Interface RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
| MAX1617AMEE+W | 功能描述:板上安裝溫度傳感器 Remote/Local Temperature Sensor with SMBus Serial Interface RoHS:否 制造商:Omron Electronics 輸出類型:Digital 配置: 準(zhǔn)確性:+/- 1.5 C, +/- 3 C 溫度閾值: 數(shù)字輸出 - 總線接口:2-Wire, I2C, SMBus 電源電壓-最大:5.5 V 電源電壓-最小:4.5 V 最大工作溫度:+ 50 C 最小工作溫度:0 C 關(guān)閉: 安裝風(fēng)格: 封裝 / 箱體: 設(shè)備功能:Temperature and Humidity Sensor |
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