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參數(shù)資料
| 型號(hào)： | ADC78H89EVAL |
| 廠商： | National Semiconductor Corporation |
| 英文描述： | 7-Channel, 500 KSPS, 12-Bit A/D Converter |
| 中文描述： | 7通道，500 kSPS的，12位A / D轉(zhuǎn)換器 |
| 文件頁(yè)數(shù)： | 2/16頁(yè) |
| 文件大小： | 828K |
| 代理商： | ADC78H89EVAL |
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Block Diagram
20061607
Pin Descriptions and Equivalent Circuits
Pin No.
ANALOG I/O
5 - 11
Symbol
Equivalent Circuit
Description
AIN1 to AIN7
Analog inputs. These signals can range from 0V to AV
DD
.
This pin is not connected internally, and can be left floating,
or tied to ground.
2
NC
DIGITAL I/O
16
SCLK
Digital clock input. The range of frequencies for this input is
50 kHz to 8 MHz, with guaranteed performance at 8 MHz.
This clock directly controls the conversion and readout
processes.
Digital data output. The output samples are clocked out of this
pin on falling edges of the SCLK pin.
Digital data input. The ADC78H89’s Control Register is
loaded through this pin on rising edges of the SCLK pin.
Chip select. On the falling edge of CS, a conversion process
begins. Conversions continue as long as CS is held low.
15
DOUT
14
DIN
1
CS
POWER SUPPLY
3
AV
DD
Positive analog supply pin. This pin should be connected to a
quiet +2.7V to +5.25V source and bypassed to GND with 0.1
μF ceramic monolithic and 1 μF tantalum capacitors located
within 1 cm of the power pin.
Positive digital supply pin. This pin should be connected to a
+2.7V to AV
DD
supply, and bypassed to GND with a 0.1 μF
ceramic monolithic capacitor located within 1 cm of the power
pin.
The ground return for both analog and digital supplies. These
pins are tied directly together internally, so must be connected
to the same potential. If any potential exists across these
pins, large currents will flow through the device.
13
DV
DD
4, 12
GND
A
www.national.com
2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADC78H89 | 7 CHANNEL 500KSPS, 12 BIT A/D CONVERTER |
| ADC78H89CIMT | 7 CHANNEL 500KSPS, 12 BIT A/D CONVERTER |
| ADC78H89CIMTX | 7 CHANNEL 500KSPS, 12 BIT A/D CONVERTER |
| ADC78H90 | 8-Channel, 500 kSPS, 12-Bit A/D Converter |
| ADC78H90CIMT | 8-Channel, 500 kSPS, 12-Bit A/D Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADC78H90 | 制造商:NSC 制造商全稱(chēng):National Semiconductor 功能描述:8-Channel, 500 kSPS, 12-Bit A/D Converter |
| ADC78H90CIMT | 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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 |
| ADC78H90CIMT | 制造商:Texas Instruments 功能描述:12BIT ADC 500KSPS POWERWISE TSSOP16 |
| ADC78H90CIMT/NOPB | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8CH,500KSPS,12B 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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 |
| ADC78H90CIMTX | 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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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