參數資料
| 型號： | AD7451BRMZ |
| 廠商： | Analog Devices Inc |
| 文件頁數： | 2/25頁 |
| 文件大小： | 0K |
| 描述： | IC ADC 12BIT DIFF 1MSPS 8MSOP |
| 標準包裝： | 50 |
| 位數： | 12 |
| 采樣率（每秒）： | 1M |
| 數據接口： | DSP，MICROWIRE?，QSPI?，串行，SPI? |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 9.25mW |
| 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： | 8-TSSOP，8-MSOP（0.118"，3.00mm 寬） |
| 供應商設備封裝： | 8-MSOP |
| 包裝： | 管件 |
| 輸入數目和類型： | 1 個偽差分，單極 |
AD7441/AD7451
Rev. D | Page 9 of 24
PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS
VDD
SCLK
SDATA
CS
8
7
6
5
VREF 1
VIN+ 2
VIN– 3
GND 4
AD7441/
AD7451
TOP VIEW
(Not to Scale)
0
31
53
-00
6
Figure 5. 8-Lead MSOP Pin Configuration
VREF
VIN+
VIN–
GND
8
7
6
5
VDD 1
SCLK 2
SDATA 3
CS 4
AD7441/
AD7451
TOP VIEW
(Not to Scale)
0
31
53
-00
5
Figure 6. 8-Lead SOT-23 Pin Configuration
Table 5. Pin Function Descriptions
Pin. No.
Mnemonic
Description
MSOP
SOT-23
1
8
VREF
Reference Input for the AD7441/AD7451. An external reference in the range of 100 mV to VDD must be
applied to this input. The specified reference input is 2.5 V. This pin is decoupled to GND with a capacitor
of at least 0.1 μF.
2
7
VIN+
Noninverting Analog Input.
3
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.
4
5
GND
Analog Ground. Ground reference point for all circuitry on the AD7441/AD7451. All analog input signals
and any external reference signal are referred to this GND voltage.
5
4
CS
Chip Select. Active low logic input. This input provides the dual function of initiating a conversion on
the AD7441/AD7451 and framing the serial data transfer.
6
3
SDATA
Serial Data, Logic Output. The conversion result from the AD7441/AD7451 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 AD7451 consists of four leading zeros followed by the 12 bits of conversion data that are provided
MSB first; the data stream of the AD7441 consists of four leading zeros, followed by the 10 bits of con-
version data, followed by two trailing zeros. In both cases, the output coding is straight (natural) binary.
7
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.
8
1
VDD
Power Supply Input. VDD is 2.7 V to 5.25 V. This supply is decoupled to GND with a 0.1 μF capacitor and a
10 μF tantalum capacitor.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| AD7451BRMZ | 制造商:Analog Devices 功能描述:12BIT SAR ADC DIFF I/P SMD 7451 |
| AD7451BRT | 制造商:AD 制造商全稱:Analog Devices 功能描述:Pseudo Differential, 1MSPS, 12- & 10-Bit ADCs in 8-lead SOT-23 |
| AD7451BRT-R2 | 功能描述:IC ADC 12BIT W/DIFF INP SOT-23-8 RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 產品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:2,500 系列:- 位數:12 采樣率（每秒）:3M 數據接口:- 轉換器數目:- 功率耗散（最大）:- 電壓電源:- 工作溫度:- 安裝類型:表面貼裝 封裝/外殼:SOT-23-6 供應商設備封裝:SOT-23-6 包裝:帶卷 (TR) 輸入數目和類型:- |
| AD7451BRT-REEL7 | 制造商:Analog Devices 功能描述: |
| AD7452 | 制造商:AD 制造商全稱:Analog Devices 功能描述:Differential Input, 555 kSPS 12-Bit ADC in an 8-Lead SOT-23 |
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