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鍙冩暩(sh霉)璩囨枡
鍨嬭櫉(h脿o)锛� ISL26312FVZ-T7A
寤犲晢锛� Intersil
鏂囦欢闋�(y猫)鏁�(sh霉)锛� 13/23闋�(y猫)
鏂囦欢澶�?銆�?/td> 0K
鎻忚堪锛� IC ADC 12BIT SRL/SPI 16TSSOP
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浣嶆暩(sh霉)锛� 12
閲囨ǎ鐜囷紙姣忕锛夛細 125k
鏁�(sh霉)鎿�(j霉)鎺ュ彛锛� 涓茶锛孲PI?
杞�(zhu菐n)鎻涘櫒鏁�(sh霉)鐩細 1
鍔熺巼鑰楁暎锛堟渶澶э級锛� 80mW
闆诲闆绘簮锛� 鍠浕婧�
宸ヤ綔婧害锛� -40°C ~ 125°C
瀹夎椤炲瀷锛� 琛ㄩ潰璨艰
灏佽/澶栨锛� 16-TSSOP锛�0.173"锛�4.40mm 瀵級
渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁濓細 16-TSSOP
鍖呰锛� 妯�(bi膩o)婧�(zh菙n)鍖呰
杓稿叆鏁�(sh霉)鐩拰椤炲瀷锛� 2 鍊�(g猫)宸垎锛屽柈妤�
鍏跺畠鍚嶇ū锛� ISL26312FVZ-T7ADKR
ISL26310, ISL26311, ISL26312, ISL26313, ISL26314, ISL26315, ISL26319
20
FN7549.2
February 26, 2014
Device Configuration Registers
The Input Multiplexer Channel Select and power management
features are controlled by loading the appropriate bits into the
16-bit Configuration Register through the serial port, MSB-first,
as shown below. The first two Load bits LD1-LD0 must be set to
鈥�11鈥� in order to perform a Register update: any other setting will
leave the Register unchanged. Changes to the Configuration
Register will be implemented internally immediately following
the completion of the current conversion, or require a dummy
conversion in order to take effect. Also, in the case of all power
management features, a recovery time will be incurred when
returning to normal operation, as indicated.
Power Management Modes
In all SPI interface modes (RAC, RDC, etc.) the device has three
states of operation: Acquisition, Conversion and Idle. Power
management modes decide the state of the ADC in Idle mode
and are selected by the PM bits in the Configuration Register as
shown in Tables 3 and 4.
In the default mode (Continuous Operation) the ADC is fully
powered in the Idle state and can be taken back to the
Acquisition state instantaneously. In this mode the ADC can be
operated with maximum throughput and hence is ideally suitable
for applications where the ADC is operated continuously.
In Auto Sleep Mode the ISL263XX will be in a sleep state
consuming less than 0.4mA. However, it should be noted that the
requirements on tACQ are more stringent in Auto Sleep mode
since the device must wake up and then perform the Acquisition.
In Auto Power Down Mode (as selected by PM bits) the ADC will be in
power-down condition during the Idle period, consuming less than
5A of current. Wake-up time takes 150s. The acquisition time
(tACQ) must be increased to account for this delay.
The power management modes provide a high degree of
flexibility in trading average power consumption versus the
required throughput. Significant power savings can be achieved
by operating in either Auto Sleep Mode or Auto Power-Down
mode depending on the throughput requirements.
TABLE 3. CONFIGURATION REGISTER
BIT 15
(MSB)
14
13
12
11
10
9
8
LD1
LD0
ADDR2
ADDR1
ADDR0
PM1
PM0 Unused
BIT 7
BIT 6
BIT 5
BIT 4
BIT 3
BIT 2 BIT 1
BIT 0
(LSB)
RGRD
Unused
TABLE 4. CONFIGURATION REGISTER 2
BIT(S)
DESCRIPTION
15:14 Register Load word, set to 鈥�11鈥� to update registers,
otherwise previous settings are retained.
13:11 Multiplexer Channel Select word ADDR2:0.
000H: Channel AIN0 (single-ended input devices) or AIN0+/AIN0-
(differential input devices).
001H: Channel AIN1 or AIN1+/AIN1-
010H: Channel AIN2 or AIN2+/AIN2-
011H: Channel AIN3 or AIN3+/AIN3-
100H: Channel AIN4
101H: Channel AIN5
110H: Channel AIN6
111H: Channel AIN7
10:9 Power Management Configuration Control.
00H: Auto Power-Down mode. Device will go into Power-down
mode automatically at the end of the next conversion cycle.
01H: Continuous Operation mode (default). Device remains fully
powered at all times.
1xH: Auto Sleep Mode. Device will enter reduced-power Sleep
mode automatically at the end of the next conversion cycle. A "1"
in PM1 overrides the setting in PM0.
8Unused.
7
Register readback mode. "1" means register readback is enabled
resulting in configuration settings to be output along with
conversion results. "0" (default) mode of operation register
settings are not output.
6:0 Unused.
鐩搁棞(gu膩n)PDF璩囨枡
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ISL26313FBZ-T7A 鍔熻兘鎻忚堪:IC ADC 12BIT SPI/SRL 125K 8SOIC RoHS:鏄� 椤炲垾:闆嗘垚闆昏矾 (IC) >> 鏁�(sh霉)鎿�(j霉)閲囬泦 - 妯℃暩(sh霉)杞�(zhu菐n)鎻涘櫒 绯诲垪:- 鐢�(ch菐n)鍝佸煿瑷�(x霉n)妯″:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 妯�(bi膩o)婧�(zh菙n)鍖呰:250 绯诲垪:- 浣嶆暩(sh霉):12 閲囨ǎ鐜囷紙姣忕锛�:1.8M 鏁�(sh霉)鎿�(j霉)鎺ュ彛:骞惰伅(li谩n) 杞�(zhu菐n)鎻涘櫒鏁�(sh霉)鐩�:1 鍔熺巼鑰楁暎锛堟渶澶э級:1.82W 闆诲闆绘簮:妯℃摤鍜屾暩(sh霉)瀛� 宸ヤ綔婧害:-40°C ~ 85°C 瀹夎椤炲瀷:琛ㄩ潰璨艰 灏佽/澶栨:48-LQFP 渚涙噳(y墨ng)鍟嗚ō(sh猫)鍌欏皝瑁�:48-LQFP锛�7x7锛� 鍖呰:绠′欢 杓稿叆鏁�(sh霉)鐩拰椤炲瀷:2 鍊�(g猫)鍠锛屽柈妤�
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