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參數(shù)資料
| 型號(hào)： | MAX197BEWI+T |
| 廠商： | Maxim Integrated Products |
| 文件頁(yè)數(shù)： | 14/16頁(yè) |
| 文件大小： | 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： | 1,000 |
| 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： | 帶卷 (TR) |
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MAX197
Multi-Range (±10V, ±5V, +10V, +5V),
Single +5V, 12-Bit DAS with 8+4 Bus Interface
_______________________________________________________________________________________
7
______________________________________________________________Pin Description
Digital Ground
DGND
28
+5V Supply. Bypass with 0.1F capacitor to AGND.
VDD
27
INT goes low when conversion is complete and output data is ready.
INT
24
Bandgap Voltage-Reference Output/External Adjust Pin. Bypass with a 0.01F capacitor to AGND. Connect
to VDD when using an external reference at the REF pin.
REFADJ
25
Reference Buffer Output/ADC Reference Input. In internal reference mode, the reference buffer provides a
4.096V nominal output, externally adjustable at REFADJ. In external reference mode, disable the internal
buffer by pulling REFADJ to VDD.
REF
26
Three-State Digital I/O. D2 output (HBEN = low), D10 output (HBEN = high).
D2/D10
12
Three-State Digital I/O. D1 output (HBEN = low), D9 output (HBEN = high).
D1/D9
13
Three-State Digital I/O. D0 output (HBEN = low), D8 output (HBEN = high). D0 = LSB.
D0/D8
14
Analog Ground
AGND
15
Analog Input Channels
CH0–CH7
16–23
Used to multiplex the 12-bit conversion result. When high, the 4 MSBs are multiplexed on the data bus;
when low, the 8 LSBs are available on the bus.
HBEN
5
Shutdown. Puts the device into full power-down (FULLPD) mode when pulled low.
SHDN
6
Three-State Digital I/O
D7–D4
7–10
Three-State Digital I/O. D3 output (HBEN = low), D11 output (HBEN = high).
D3/D11
11
If CS is low, a falling edge on RD will enable a read operation on the data bus.
RD
4
When CS is low, in the internal acquisition mode, a rising edge on WR latches in configuration data and starts an
acquisition plus a conversion cycle. When CS is low, in the external acquisition mode, the first rising edge on
WR starts an acquisition and a second rising edge on WR ends acquisition and starts a conversion cycle.
WR
3
PIN
Chip Select, active low.
CS
2
Clock Input. In external clock mode, drive CLK with a TTL/CMOS compatible clock. In internal clock mode,
place a capacitor from this pin to ground to set the internal clock frequency; fCLK = 1.56MHz typical with
CCLK = 100pF.
CLK
1
FUNCTION
NAME
100k
510k
24k
REFADJ
+5V
0.01
F
MAX197
Figure 1. Reference-Adjust Circuit
3k
3k
DOUT
+5V
a. HIGH-Z TO VOH AND VOL TO VOH
b. HIGH-Z TO VOL AND VOH TO VOL
CLOAD
Figure 2. Load Circuits for Enable Time
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| 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 |
| MAX197BMWI/TR | 制造商:Maxim Integrated Products 功能描述:MULTI-RANGE, SINGLE +5V, 12-BIT DAS WITH 8+4 - Bulk |
| MAX197BMYI | 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 |
| MAX197EVC16-DIP | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Programmers, Development Systems 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 |
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