參數(shù)資料
型號(hào): LTC2391ILX-16#PBF
廠商: Linear Technology
文件頁數(shù): 24/24頁
文件大小: 0K
描述: IC ADC 16B SER/PAR 250K 48LQFP
標(biāo)準(zhǔn)包裝: 250
位數(shù): 16
采樣率(每秒): 250k
數(shù)據(jù)接口: 串行,并聯(lián)
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 125mW
電壓電源: 模擬和數(shù)字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 48-LQFP
供應(yīng)商設(shè)備封裝: 48-LQFP(7x7)
包裝: 托盤
輸入數(shù)目和類型: 1 個(gè)差分,雙極
配用: DC1500A-C-ND - BOARD SAR ADC LTC2391-16
LTC2391-16
9
239116fa
BUSY (Pin 29): Busy Output. A low-to-high transition oc-
curs when a conversion is started. It stays high until the
conversion is complete. The falling edge of BUSY can be
used as the data-ready clock signal.
RD (Pin 30): Read Data Input. When CS and RD are both
low, the parallel and serial output bus is enabled.
CS (Pin 31): Chip Select. When CS and RD are both low,
the parallel and serial output bus is enabled. CS is also
used to gate the external shift clock.
RESET (Pin 32): Reset Input. When high the LTC2391-16
is reset, and if this occurs during a conversion, the con-
version is halted and the data bus is put into Hi-Z mode.
PD (Pin 33): Power-Down Input. When high, the
LTC2391-16 is powered down and subsequent conversion
requests are ignored. Before entering power shutdown,
the digital output data should be read.
CNVST (Pin 34): Conversion Start Input. A falling edge
on CNVST puts the internal sample-and-hold into the hold
mode and starts a conversion. CNVST is independent of CS.
VCM (Pin 36): Common Mode Analog Output. Typically
the output voltage is 2.048V. Bypass to GND with a 10μF
capacitor.
REFOUT (Pin 37): Internal Reference Output. Nominal
output voltage is 4.096V. Connect this pin to REFIN if us-
ing the internal reference. If an external reference is used
connect REFOUT to ground.
REFIN (Pin 38): Reference Input. An external reference
can be applied to REFIN if a more accurate reference is
required. If an external reference is used tie REFOUT to
ground.
REFSENSE (Pin 39): Reference Input Sense. Leave
REFSENSE open when using the internal reference. If
an external reference is used connect REFSENSE to the
ground pin of the external reference.
IN, IN+ (Pin 42, Pin 43):
Differential Analog Inputs.
IN+ – (IN) can range up to ±VREF.
PIN FUNCTIONS
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