- 您現在的位置：買賣IC網 > PDF目錄9462 > MAX197ACWI+T (Maxim Integrated Products)IC DAS 12BIT SNGL 28-SOIC PDF資料下載
參數資料
| 型號： | MAX197ACWI+T |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 2/16頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC DAS 12BIT SNGL 28-SOIC |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 1,000 |
| 類型： | 數據采集系統(tǒng)（DAS） |
| 分辨率（位）： | 12 b |
| 采樣率（每秒）： | 100k |
| 數據接口： | 并聯 |
| 電壓電源： | 單電源 |
| 電源電壓： | 4.75 V ~ 5.25 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 28-SOIC（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 28-SOIC W |
| 包裝： | 帶卷 (TR) |
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PDF資料 |
PDF描述 |
|---|---|
| LTC6902CMS | IC OSC SILICON 20MHZ 10MSOP |
| M83723/72R2219N | CONN RCPT 19POS WALL MT W/PINS |
| MAX198ACWI+T | IC DAS 12BIT 6CH 28-SOIC |
| MS27473T24B1PB | CONN PLUG 128POS STRAIGHT W/PINS |
| MAX198BEWI+T | IC DAS 12BIT 6CH 28-SOIC |
相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX197AEAI | 功能描述:模數轉換器 - ADC Integrated Circuits (ICs) RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX197AEAI+ | 功能描述:模數轉換器 - ADC 12-Bit 8Ch 100ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX197AEAI+T | 功能描述:模數轉換器 - ADC 12-Bit 8Ch 100ksps 4.18V Precision ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX197AEAI-T | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX197AENI | 功能描述:模數轉換器 - ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
發(fā)布緊急采購，3分鐘左右您將得到回復。