參數資料
型號: LTC2367IMS-18#TRPBF
廠商: Linear Technology
文件頁數: 23/24頁
文件大?。?/td> 0K
描述: IC ADC 18BIT 500K 1CH 16MSOP
產品培訓模塊: LTC2369- 18-/16-bit Pseudo-Differential SAR ADC Family Overview
標準包裝: 2,500
位數: 18
采樣率(每秒): 500k
數據接口: 串行,SPI?
轉換器數目: 1
功率耗散(最大): 8mW
電壓電源: 模擬和數字
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 16-TFSOP(0.118",3.00mm 寬)
供應商設備封裝: 16-MSOP
包裝: 帶卷 (TR)
輸入數目和類型: 1 個偽差分,單極
配用: DC1813A-G-ND - BOARD SAR ADC LTC2367-18
LTC2367-18
8
236718f
CHAIN (Pin 1): Chain Mode Selector Pin. When low, the
LTC2367-18 operates in normal mode and the RDL/SDI
input pin functions to enable or disable SDO. When high,
the LTC2367-18 operates in chain mode and the RDL/SDI
pin functions as SDI, the daisy-chain serial data input.
Logic levels are determined by OVDD.
VDD (Pin 2): 2.5V Power Supply. The range of VDD is
2.375V to 2.625V. Bypass VDDtoGNDwitha10Fceramic
capacitor.
GND (Pins 3, 6, 10 and 16): Ground.
IN+ (Pin 4): Analog Input. IN+ operates differential with
respect to INwith an IN+-INrange of 0V to VREF.
IN(Pin 5): Analog Ground Sense. INhas an input range
of ±100mV with respect to GND and must be tied to the
ground plane or a remote ground sense.
REF(Pins7,8):ReferenceInputs.TherangeofREFis2.5V
to 5.1V. This pin is referred to the GND pin and should be
decoupled closely to the pin with a 47F ceramic capacitor
(X5R, 0805 size).
CNV (Pin 9): Convert Input. A rising edge on this input
powers up the part and initiates a new conversion. Logic
levels are determined by OVDD.
BUSY (Pin 11): BUSY Indicator. Goes high at the start of
a new conversion and returns low when the conversion
has finished. Logic levels are determined by OVDD.
RDL/SDI (Pin 12): When CHAIN is low, the part is in nor-
mal mode and the pin is treated as a bus enabling input.
When CHAIN is high, the part is in chain mode and the
pin is treated as a serial data input pin where data from
another ADC in the daisy chain is input. Logic levels are
determined by OVDD.
SCK(Pin13):SerialDataClockInput.WhenSDOisenabled,
the conversion result or daisy-chain data from another
ADC is shifted out on the rising edges of this clock MSB
first. Logic levels are determined by OVDD.
SDO (Pin 14): Serial Data Output. The conversion result
or daisy-chain data is output on this pin on each rising
edge of SCK MSB first. The output data is in straight binary
format. Logic levels are determined by OVDD.
OVDD (Pin 15): I/O Interface Digital Power. The range of
OVDD is 1.71V to 5.25V. This supply is nominally set to
the same supply as the host interface (1.8V, 2.5V, 3.3V,
or 5V). Bypass OVDD to GND with a 0.1F capacitor.
GND (Exposed Pad Pin 17, DFN Package Only): Ground.
Exposedpadmustbesoldereddirectlytothegroundplane.
PIN FUNCTIONS
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