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參數資料
| 型號： | LTC2351CUH-12#PBF |
| 廠商： | Linear Technology |
| 文件頁數： | 19/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT 1.5MSPS 32-QFN |
| 標準包裝： | 73 |
| 位數： | 12 |
| 采樣率（每秒）： | 1.5M |
| 數據接口： | 串行，SPI? |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 16.5mW |
| 電壓電源： | 單電源 |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 32-WFQFN 裸露焊盤 |
| 供應商設備封裝： | 32-QFN 裸露焊盤（5x5） |
| 包裝： | 管件 |
| 輸入數目和類型： | 12 個單端，單極；12 個單端，雙極；6 個差分，單極；6 個差分，雙極 |
| 配用： | DC1278A-ND - BOARD SAR ADC LTC2351-14 |
LTC2351-12
8
235112fa
PIN FUNCTIONS
SDO (Pin 1): Three-State Serial Data Output. Each set
of six output data words represent the six analog input
channels at the start of the previous conversion. Data for
CH0 comes out rst and data for CH5 comes out last. Each
data word comes out MSB rst.
OGND (Pin 2): Ground Return for SDO Currents. Connect
to the solid ground plane.
OVDD (Pin 3): Power Supply for the SDO Pin. OVDD
must be no more than 300mV higher than VDD and can
be brought to a lower voltage to interface to low voltage
logic families. The unloaded high state at SDO is at the
potential of OVDD.
CH0+ (Pin 4):
Non-Inverting Channel 0. CH0+ operates
fully differentially with respect to CH0– with a 0V to 2.5V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH0– (Pin 5):
Inverting Channel 0. CH0– operates fully
differentially with respect to CH0+ with a –2.5V to 0V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
GND (Pins 6, 9, 12, 13, 16, 19): Analog Grounds. These
ground pins must be tied directly to the solid ground plane
under the part. Analog signal currents ow through these
connections.
CH1+ (Pin 7):
Non-Inverting Channel 1. CH1+ operates
fully differentially with respect to CH1– with a 0V to 2.5V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH1– (Pin 8):
Inverting Channel 1. CH1– operates fully
differentially with respect to CH1+ with a –2.5V to 0V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH2+ (Pin 10):
Non-Inverting Channel 2. CH2+ operates
fully differentially with respect to CH2– with a 0V to 2.5V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH2– (Pin 11):
Inverting Channel 2. CH2– operates fully
differentially with respect to CH2+ with a –2.5V to 0V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH3+ (Pin 14):
Non-Inverting Channel 3. CH3+ operates
fully differentially with respect to CH3– with a 0V to 2.5V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH3– (Pin 15):
Inverting Channel 3. CH3– operates fully
differentially with respect to CH3+ with a –2.5V to 0V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH4+ (Pin 17):
Non-Inverting Channel 4. CH4+ operates
fully differentially with respect to CH4– with a 0V to 2.5V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH4– (Pin 18):
Inverting Channel 4. CH4– operates fully
differentially with respect to CH4+ with a –2.5V to 0V, or
±1.25V differential swing and a 0V to VDD absolute input
range.
CH5+ (Pin 20):
Non-Inverting Channel 5. CH5+ operates
fully differentially with respect to CH5– with a 0V to 2.5V,
or ±1.25V differential swing and a 0V to VDD absolute
input range.
CH5– (Pin 21):
Inverting Channel 5. CH5– operates fully
differentially with respect to CH5+ with a –2.5V to 0V, or
±1.25V differential swing and a 0V to VDD absolute input
range.
GND (PIN 22): Analog Ground for Reference. Analog
ground must be tied directly to the solid ground plane
under the part. Analog signal currents ow through this
connection. The 10μF reference bypass capacitor should
be returned to this pad.
VREF (Pin 23): 2.5V Internal Reference. Bypass to GND and
a solid analog ground plane with a 10μF ceramic capaci-
tor (or 10
μF tantalum in parallel with 0.1μF ceramic). Can
be overdriven by an external reference voltage between
2.55V and VDD, VCC.
VCC (Pin 24): 3V Positive Analog Supply. This pin sup-
plies 3V to the analog section. Bypass to the solid analog
ground plane with a 10μF ceramic capacitor (or 10μF
tantalum) in parallel with 0.1μF ceramic. Care should
be taken to place the 0.1μF bypass capacitor as close to
Pin 24 as possible. Pin 24 must be tied to Pin 25.
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| LTC2351CUH-14#PBF | 功能描述:IC ADC 14BIT 1.5MSPS 32-QFN RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 其它有關文件:TSA1204 View All Specifications 標準包裝:1 系列:- 位數:12 采樣率（每秒）:20M 數據接口:并聯(lián) 轉換器數目:2 功率耗散（最大）:155mW 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:48-TQFP 供應商設備封裝:48-TQFP（7x7） 包裝:Digi-Reel® 輸入數目和類型:4 個單端，單極；2 個差分，單極 產品目錄頁面:1156 (CN2011-ZH PDF) 其它名稱:497-5435-6 |
| LTC2351CUH-14#TRPBF | 功能描述:IC ADC 14BIT 1.5MSPS 32-QFN RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率（每秒）:300k 數據接口:并聯(lián) 轉換器數目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端，單極；1 個單端，雙極 |
| LTC2351HUH-12#PBF | 功能描述:IC ADC 12BIT 1.5MSPS 32-QFN RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率（每秒）:300k 數據接口:并聯(lián) 轉換器數目:1 功率耗散（最大）:75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端，單極；1 個單端，雙極 |
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