- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄1981 > AD7457BRTZ-REEL7 (Analog Devices Inc)IC ADC 12BIT PSEUDO-DIFF SOT23-8 PDF資料下載
參數(shù)資料
| 型號： | AD7457BRTZ-REEL7 |
| 廠商： | Analog Devices Inc |
| 文件頁數(shù)： | 20/21頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT PSEUDO-DIFF SOT23-8 |
| 標準包裝： | 1 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 100k |
| 數(shù)據(jù)接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉換器數(shù)目： | 1 |
| 功率耗散（最大）： | 3mW |
| 電壓電源： | 單電源 |
| 工作溫度： | -40°C ~ 85°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | SOT-23-8 |
| 供應商設備封裝： | SOT-23-8 |
| 包裝： | 標準包裝 |
| 輸入數(shù)目和類型： | 1 個偽差分，雙極 |
| 產(chǎn)品目錄頁面： | 777 (CN2011-ZH PDF) |
| 其它名稱： | AD7457BRTZ-REEL7DKR |
AD7457
Rev. A | Page 7 of 20
PIN CONFIGURATION AND FUNCTION DESCRIPTIONS
AD7457
TOP VIEW
(Not to Scale)
VDD 1
SCLK
2
SDATA
3
CS
4
VREF
VIN+
VIN–
GND
8
7
6
5
03157-0-002
Figure 4. 8-Lead SOT-23 Pin Configuration
Table 4. Pin Function Descriptions
Pin No.
Mnemonic
Description
1
VDD
Power Supply Input. VDD is 2.7 V to 5.25 V. This supply should be decoupled to GND with a 0.1 F capacitor and a
10 F tantalum capacitor.
2
SCLK
Serial Clock. Logic input. SCLK provides the serial clock for accessing data from the part. This clock input is also
used as the clock source for the conversion process.
3
SDATA
Serial Data. Logic output. The conversion result from the AD7457 is provided on this output as a serial data
stream. The bits are clocked out on the falling edge of the SCLK input. The data stream of the AD7457 consists of
four leading zeros followed by the 12 bits of conversion data that are provided MSB first. The output coding is
straight (natural) binary.
4
CS
Chip Select. This input provides the dual function of powering up the device and initiating a conversion on the
AD7457.
5
GND
Analog Ground. Ground reference point for all circuitry on the AD7457. All analog input signals and any external
reference signal should be referred to this GND voltage.
6
VIN–
Inverting Input. This pin sets the ground reference point for the VIN+ input. Connect to ground or to a dc offset to
provide a pseudo ground.
7
VIN+
Noninverting Analog Input.
8
VREF
Reference Input for the AD7457. An external reference in the range 100 mV to VDD must be applied to this input.
The specified reference input is 2.5 V. This pin should be decoupled to GND with a capacitor of at least 0.33 F.
相關PDF資料 |
PDF描述 |
|---|---|
| AD7467BRTZ-REEL | IC ADC 10BIT 1.6V MCRPWR SOT23-6 |
| AD7472ARU-REEL | IC ADC 12BIT PARALLEL 24-TSSOP |
| AD7476ABRM | IC ADC 12BIT 2.35V 1MSPS 8-MSOP |
| AD7478ARTZ-REEL | IC ADC 8BIT 1MSPS SOT23-6 |
| AD7482ASTZ | IC ADC 12BIT SAR 3MSPS 48LQFP |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| AD745AN | 制造商:AD 制造商全稱:Analog Devices 功能描述:Ultralow Noise, High Speed, BiFET Op Amp |
| AD745AQ | 制造商:Rochester Electronics LLC 功能描述:- Bulk 制造商:Analog Devices 功能描述: |
| AD745AR | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Operational Amplifier |
| AD745BQ | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
| AD745JN | 制造商:Rochester Electronics LLC 功能描述:ULTRA-LOW NOISE OP-AMP IC - Bulk 制造商:Analog Devices 功能描述: |
發(fā)布緊急采購，3分鐘左右您將得到回復。