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參數資料
| 型號： | MAX126CEAX+D |
| 廠商： | Maxim Integrated Products |
| 文件頁數： | 12/15頁 |
| 文件大小： | 0K |
| 描述： | IC DAS 14BIT 2X4CH 36-SSOP |
| 產品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 30 |
| 類型： | 數據采集系統(tǒng)（DAS） |
| 分辨率（位）： | 14 b |
| 數據接口： | 并聯 |
| 電壓電源： | 模擬和數字，雙 ± |
| 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： | 36-BSOP（0.295"，7.50mm 寬） |
| 供應商設備封裝： | 36-SSOP |
| 包裝： | 管件 |
_______________Detailed Description
The MAX125/MAX126 use a successive-approximation
conversion technique and four simultaneous-sampling
track/hold (T/H) amplifiers to convert analog signals into
14-bit digital outputs. Each T/H has two multiplexed
inputs, allowing a total of eight inputs. Each T/H output
is converted and stored in memory to be accessed
sequentially by the parallel interface with successive
read cycles. The MAX125/MAX126 internal micro-
sequencer can be programmed to digitize one, two,
three, or four inputs sampled simultaneously from either
of the two banks of four inputs (see Figure 2).
The conversion timing and control sequences are
derived from a 16MHz external clock, the CONVST
MAX125/MAX126
2x4-Channel, Simultaneous-Sampling
14-Bit DAS
6
_______________________________________________________________________________________
NAME
FUNCTION
1, 2
CH2B, CH2A
Channel 2 Multiplexed Inputs, single-ended
3, 4
CH1B, CH1A
Channel 1 Multiplexed Inputs, single-ended
PIN
5
AVDD
+5V ±5% Analog Supply Voltage
6
REFIN
External Reference Input/Internal Reference Output. Bypass with a 0.1F capacitor to AGND.
17
DVDD
+5V ±5% Digital Supply Voltage
9–16
D13–D6
Data Bits. D13 = MSB.
8, 36
AGND
Analog Ground. Both pins must be tied to ground.
7
REFOUT
Reference-Buffer Output. Bypass with a 4.7F capacitor to AGND.
26
CS
Chip-Select Input (active-low)
25
CLK
Clock Input (duty cycle must be 30% to 70%).
21–24
D3/A3–D0/A0
Bidirectional Data Bits/Address Bits. D0/A0 = LSB.
19, 20
D5, D4
Data Bits
18
DGND
Digital Ground
______________________________________________________________Pin Description
27
WR
Write Input (active-low)
28
RD
Read Input (active-low)
29
CONVST
Conversion-Start Input. Rising edge initiates sampling and conversion sequence.
30
INT
Interrupt Output. Falling edge indicates the end of a conversion sequence.
31
AVSS
-5V ±5% Analog Supply Voltage
32, 33
CH4A, CH4B
Channel 4 Multiplexed Inputs, single-ended
34, 35
CH3A, CH3B
Channel 3 Multiplexed Inputs, single-ended
Figure 1. Load Circuit for Access Time and Bus Relinquish Time
TO OUTPUT
PIN
120pF
1.0mA
1.6mA
1.6V
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相關代理商/技術參數 |
參數描述 |
|---|---|
| MAX126CEAX-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 |
| MAX126CEAX-TD | 制造商:Maxim Integrated Products 功能描述:- Rail/Tube |
| MAX126EVB16 | 功能描述:數據轉換 IC 開發(fā)工具 MAX126B16 Eval Kit RoHS:否 制造商:Texas Instruments 產品: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 |
| MAX126EVKIT | 功能描述:數據轉換 IC 開發(fā)工具 MAX125/126 Eval Kit RoHS:否 制造商:Texas Instruments 產品: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 |
| MAX1270ACAI | 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 |
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