- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄9496 > MAX197BEWI+ (Maxim Integrated Products)IC DAS 12BIT SNGL 28-SOIC PDF資料下載
參數(shù)資料
| 型號(hào)： | MAX197BEWI+ |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 2/16頁(yè) |
| 文件大?。?/td> | 0K |
| 描述： | IC DAS 12BIT SNGL 28-SOIC |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 25 |
| 類型： | 數(shù)據(jù)采集系統(tǒng)（DAS） |
| 分辨率（位）： | 12 b |
| 采樣率（每秒）： | 100k |
| 數(shù)據(jù)接口： | 并聯(lián) |
| 電壓電源： | 單電源 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SOIC（0.295"，7.50mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 28-SOIC W |
| 包裝： | 管件 |
| 產(chǎn)品目錄頁(yè)面： | 1393 (CN2011-ZH PDF) |
第1頁(yè)當(dāng)前第2頁(yè)第3頁(yè)第4頁(yè)第5頁(yè)第6頁(yè)第7頁(yè)第8頁(yè)第9頁(yè)第10頁(yè)第11頁(yè)第12頁(yè)第13頁(yè)第14頁(yè)第15頁(yè)第16頁(yè)
MAX197
How to Start a Conversion
Conversions are initiated with a write operation, which
selects the mux channel and configures the MAX197 for
either unipolar or bipolar input range. A write pulse (WR
+ CS) can either start an acquisition interval or initiate a
combined acquisition plus conversion. The sampling
interval occurs at the end of the acquisition interval.
The ACQMOD bit in the input control byte offers two
options for acquiring the signal: internal or external.
The conversion period lasts for 12 clock cycles in either
internal or external clock or acquisition mode.
Writing a new control byte during conversion cycle will
abort conversion and start a new acquisition interval.
Internal Acquisition
Select internal acquisition by writing the control byte
with the ACQMOD bit cleared (ACQMOD = 0). This
causes the write pulse to initiate an acquisition interval
whose duration is internally timed. Conversion starts
when this six-clock-cycle acquisition interval (3s with
fCLK = 2MHz) ends. See Figure 5.
External Acquisition
Use the external acquisition timing mode for precise con-
trol of the sampling aperture and/or independent control
of acquisition and conversion times. The user controls
acquisition and start-of-conversion with two separate
write pulses. The first pulse, written with ACQMOD = 1,
starts an acquisition interval of indeterminate length. The
second write pulse, written with ACQMOD = 0, termi-
nates acquisition and starts conversion on WR’s rising
edge (Figure 6). However, if the second control byte
contains ACQMOD = 1, an indefinite acquisition interval
is restarted.
The address bits for the input mux must have the same
values on the first and second write pulses. Power-
down mode bits (PD0, PD1) can assume new values on
the second write pulse (see Power-Down Mode).
Multi-Range (±10V, ±5V, +10V, +5V),
Single +5V, 12-Bit DAS with 8+4 Bus Interface
10
______________________________________________________________________________________
tCS
tCSWS
tWR
tACQI
tCONV
tDH
tDS
tINT1
tD0
tD01
tTR
HGH-Z
tCSRS
tCSRH
CS
WR
D7–D0
INT
RD
HBEN
DOUT
ACQMOD ="0"
HIGH / LOW
BYTE VALID
HIGH / LOW
BYTE VALID
CONTROL
BYTE
tCSWH
Figure 5. Conversion Timing Using Internal Acquisition Mode
Table 6. Data-Bus Output
PIN
HBEN = LOW
HBEN = HIGH
D0
B0 (LSB)
B8
D1
B1
B9
D2
B2
B10
D3
B3
B11 (MSB)
D4
B4
B11 (BIP = 1) / 0 (BIP = 0)
D5
B5
B11 (BIP = 1) / 0 (BIP = 0)
D6
B6
B11 (BIP = 1) / 0 (BIP = 0)
D7
B7
B11 (BIP = 1) / 0 (BIP = 0)
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1296BCSW#PBF | IC DATA ACQ SYSTEM 12BIT 20-SOIC |
| AD7890ARZ-4 | IC DAS 12BIT 8CH 24SOIC |
| MAX1270AEAI+ | IC ADC 12BIT SERIAL 28-SSOP |
| V150A5M300BL3 | CONVERTER MOD DC/DC 5V 300W |
| VE-B6L-IU | CONVERTER MOD DC/DC 28V 200W |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX197BEWI+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 100ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX197BEWI+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 8Ch 100ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX197BEWI-T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX197BMWI/PR | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Multi-Range ( 10V 5V +10V +5V) Single +5V 12-Bit DAS with 8+4 Bus Interface RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX197BMWI/PR-T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Multi-Range (110V 15V +10V +5V) Single +5V 12-Bit DAS with 8+4 Bus Interface RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。