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參數(shù)資料
| 型號： | MAX1377ATP+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 9/25頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT 1.25MSPS DL 20-TQFN |
| 產(chǎn)品培訓(xùn)模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標(biāo)準(zhǔn)包裝： | 60 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 1.25M |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 2 |
| 功率耗散（最大）： | 40mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 125°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 20-WQFN 裸露焊盤 |
| 供應(yīng)商設(shè)備封裝： | 20-TQFN-EP（5x5） |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 4 個單端，單極；4 個單端，雙極；2 個差分，單極；2 個差分，雙極 |
| 產(chǎn)品目錄頁面： | 1396 (CN2011-ZH PDF) |
MAX1377/MAX1379/MAX1383
Dual, 12-Bit, 1.25Msps Simultaneous-Sampling
ADCs with Serial Interface
______________________________________________________________________________________
17
The internal reference is continuously powered-up dur-
ing both normal and partial power-down modes. In full
power-down mode, the internal reference is disabled.
Allow at least 2ms recovery time after a power-on reset
or exiting full power-down mode for the reference to
settle to its intended value.
Input Voltage Range (MAX1383)
The input range on the MAX1383 has an 8x relationship
with the reference voltage. For example, when the refer-
ence voltage (internal or external) is 2.5V, the input
range is ±10V (20VP-P).
External Reference Mode
Drive REFSEL high to select external reference mode.
Apply a reference voltage at REF. Bypass REF with
a 10nF capacitor and a 4.7F capacitor to RGND. As
with the internal reference, it is important to select a low
ESR capacitor and keep the trace resistance as low
as possible.
Serial Interface
Initialization After Power-Up
Upon initial power-up, the MAX1377/MAX1379/ MAX1383
require a complete conversion cycle to initialize the inter-
nal calibration. Following this initialization, the ADC is
ready for normal operation. This initialization is only
required after a hardware power-on reset and is not
required after exiting partial or full power-down mode.
Starting a Conversion and Reading the Output
With SCLK idling high or low, a falling edge on CNVST
begins a conversion (see Figure 6). This causes the
analog input stage to transition from track to hold
mode. SCLK provides the timing for the conversion
process, and data is shifted out as each bit of the result
is determined. A rising edge in CNVST forces the
device into one of three modes. The mode is deter-
mined by the clock cycle in which the transition occurs
and whether the device is set for single or dual outputs.
Figures 7 and 8 show each mode that is activated with
a rising CNVST edge for single and dual outputs.
CNVST
SCLK
DOUT_
tSETUP
tCL
tCH
tDHOLD
tDOUT
tCSW
CS
tACQ
D11
D10
D9
D8
D7
D6
D5
D4
D3
14
13
1
tCST
TRACKING
HOLD MODE
INTERNAL T/H STATE
D2
D1
D0
Figure 6. Detailed Serial-Interface Timing Diagram
CNVST
SCLK
1
2
3
4
14
28
POWER-DOWN
CONTINUOUS MODE
DOUT1 GOES HI-Z
DOUT1 HI-Z
29
CS
Figure 7. Single-Output CNVST Transition Modes
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX1377ATP+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 1.25Msps 3.6V 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 |
| MAX1377ATP+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 1.25Msps 3.6V 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 |
| MAX1379ATP+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 1.25Msps 5.25V 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 |
| MAX1379ATP+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit 4Ch 1.25Msps 5.25V 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 |
| MAX1379EVKIT+ | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 MAX1379 Eval Kit RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
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