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參數(shù)資料
| 型號： | MAX19527EXE+ |
| 廠商： | Maxim Integrated Products |
| 文件頁數(shù)： | 5/30頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT 8CH 50MSPS 144CTBGA |
| 應(yīng)用說明： | Ultrasound Imaging Systems Application Note |
| 產(chǎn)品培訓模塊： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 標準包裝： | 240 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 50M |
| 數(shù)據(jù)接口： | 串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 8 |
| 功率耗散（最大）： | 2.96W |
| 電壓電源： | 模擬和數(shù)字 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 144-TFBGA |
| 供應(yīng)商設(shè)備封裝： | 144-CTFBGA |
| 包裝： | 管件 |
| 輸入數(shù)目和類型： | 16 個單端，單極；8 個差分，單極 |
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Ultra-Low-Power, Octal, 12-Bit, 50Msps,
1.8V ADC with Serial LVDS Outputs
MAX19527
13
Detailed Description
The MAX19527 is an octal, 12-bit, 50Msps analog-
to-digital converter (ADC). The ADC features fully
differential inputs, a differential, pipelined architecture
with digital error correction, 3-wire SPI-compatible inter-
face for device configuration, serial LVDS digital outputs,
and fully configurable power management. The device
has an internal precision bandgap reference, but the
reference structure also allows the use of an external
reference. A flexible clock input circuit allows for a
single-ended or differential clock signal, while an on-chip
configurable PLL generates the multiplied (6x) clock
required for the serial LVDS digital outputs.
The ADC offers eight separate, fully differential
channels with synchronized inputs and outputs. The device
features a 9-stage, fully differential, pipelined architecture
that is ideal for high-speed conversion while minimizing
power consumption (Figure 1). Sampled signals taken at
a channel input move progressively through the pipeline
stages every half clock cycle. From input to serial out-
put, the total latency is 8.5 clock cycles. Each pipeline
stage converts its input voltage to a digital output code.
At every stage, except the last, the error between the
input voltage and the digital output code is multiplied
and passed on to the next pipeline stage. Digital error
correction compensates for ADC comparator offsets
in each pipeline stage and ensures that there are no
missing codes. See the Simplified Block Diagram.
Analog Inputs and
Common-Mode Reference
Apply the differential analog input signal to the
analog inputs (IN_+, IN_-), which are connected to
the input sampling switch (Figure 2). When the input
sampling switch is closed, the input signal is applied
to the sampling capacitors through the input switch
resistance. The input signal is sampled at the instant
the input switch opens. Carefully balance the input
impedance of IN_+ and IN_- for optimum performance.
Before the input switch is closed to begin the next
sampling cycle, the sampling capacitors are reset to the
input common-mode potential.
Common-mode bias can be provided externally (default)
or internally through 2kI resistors (programmed). In
DC-coupled applications, the signal source provides
the external bias and the bias current. In AC-coupled
applications, the input current is supplied by the
common-mode input voltage. For example, the input
current can be supplied through the center tap of a
transformer’s secondary winding.
Figure 1. Pipeline Architecture—Stage Blocks
IN1_+
STAGE 1
IN1_-
FLASH
ADC
DAC
C
X2
12
STAGE 2
STAGE 8
STAGE 9,
END OF
PIPELINE
DIGITAL ERROR CORRECTION
DATA[11:0]
MAX19527
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| MAX19527EXE+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12Bit 8Ch 50Msps 1.8V 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX19527EXE+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12Bit 8Ch 50Msps 1.8V 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX19528EVKIT+ | 制造商:Maxim Integrated Products 功能描述:ANALOG TO DIGITAL CONVERTER - Boxed Product (Development Kits) |
| MAX19528EXE+ | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Integrated Circuits (ICs) Analog to Digital Converters - IC ADC 12BIT 8CH 64MSPS 144CTBGA 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| MAX19528EXE+T | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Integrated Circuits (ICs) Analog to Digital Converters - IC ADC 12BIT 8CH 64MSPS 144CTBGA 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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