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參數(shù)資料
| 型號(hào)： | ADS1251 |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | "ResolutionPlus 24-Bit |
| 中文描述： | ResolutionPlus 24 位 20kHz 低功耗模數(shù)轉(zhuǎn)換器 |
| 文件頁數(shù)： | 11/17頁 |
| 文件大?。?/td> | 323K |
| 代理商： | ADS1251 |
ADS1251
3
SBAS184A
www.ti.com
ELECTRICAL CHARACTERISTICS (Cont.)
All specifications at TMIN to TMAX, VDD = +5V, CLK = 8MHz, and VREF = 4.096, unless otherwise specified.
ADS1251U
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
VOLTAGE REFERENCE
VREF
0.5
4.096
VDD
V
Load Current
32
A
DIGITAL INPUT/OUTPUT
Logic Family
CMOS
Logic Level: VIH
+4.0
+VDD + 0.3
V
VIL
–0.3
+0.8
V
VOH
IOH = –500A
+4.5
V
VOL
IOL = 500A
0.4
V
Input (SCLK, CLK) Hysteresis
0.6
V
Data Format
Offset Binary Two’s Complement
POWER-SUPPLY REQUIREMENTS
Operation
+4.75
+5
+5.25
VDC
Quiescent Current
VDD = +5VDC
1.5
2
mA
Operating Power
7.5
10
mW
Power-Down Current
0.4
1
A
TEMPERATURE RANGE
Operating
–40
+85
°C
Storage
–60
+100
°C
PIN CONFIGURATION
Top View
SO
PIN DESCRIPTIONS
PIN
NAME
PIN DESCRIPTION
1+VIN
Analog Input: Positive Input of the Differen-
tial Analog Input
2–VIN
Analog Input: Negative Input of the Differ-
ential Analog Input.
3+VDD
Input: Power-Supply Voltage, +5V
4
CLK
Digital Input: Device System Clock. The
system clock is in the form of a CMOS-
compatible clock. This is a Schmitt-Trigger
input.
5
DOUT/DRDY
Digital Output: Serial Data Output/Data
Ready. This output indicates that a new
output word is available from the ADS1251
data output register. The serial data is
clocked out of the serial data output shift
register using SCLK.
6
SCLK
Digital Input: Serial Clock. The serial clock
is in the form of a CMOS-compatible clock.
The serial clock operates independently
from the system clock, therefore, it is pos-
sible to run SCLK at a higher frequency
than CLK. The normal state of SCLK is
LOW. Holding SCLK HIGH will either ini-
tiate a modulator reset for synchronizing
multiple converters or enter power-down
mode. This is a Schmitt-Trigger input.
7
GND
Input: Ground
8VREF
Analog Input: Reference Voltage Input
+V
IN
ADS1251U
GND
–V
IN
V
REF
+V
DD
SCLK
DOUT/DRDY
CLK
1
2
3
4
8
7
6
5
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS1251EVM | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS1251 ADC Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| ADS1251U | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC ResolutionPlus 24Bit 20kHz Lo-Power 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| ADS1251U | 制造商:Texas Instruments 功能描述:IC 24BIT ADC SMD 1251 SOIC8 |
| ADS1251U | 制造商:Texas Instruments 功能描述:IC ADC 24BIT 20KSPS SOIC-8 |
| ADS1251U/2K5 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC ResolutionPlus 24Bit 20kHz Lo-Power 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(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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