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參數資料
| 型號： | ADS7945SRTET |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 2-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PQCC16 |
| 封裝： | GREEN, PLASTIC, QFN-16 |
| 文件頁數： | 1/49頁 |
| 文件大小： | 1322K |
| 代理商： | ADS7945SRTET |
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SPI
AV D
D
DVDD
GND
AIN0P
AIN1N
AIN0N
AIN1P
PDEN
SAR
ADC
SCLK
SDO
CS
REFGND
REF
CHSEL
MUX
S/H
ADS7945
SPI
AV D
D
DVDD
GND
AIN0
AIN1GND
AIN0GND
AIN1
PDEN
SAR
ADC
SCLK
SDO
CS
REFGND
REF
CHSEL
MUX
S/H
ADS7946
SBAS539B
– JUNE 2011 – REVISED SEPTEMBER 2011
14-Bit, 2 MSPS, Dual-Channel, Differential/Single-Ended,
Ultralow-Power Analog-to-Digital Converters
1
FEATURES
DESCRIPTION
The ADS7945/6 are 14-bit, 2 MSPS analog-to-digital
23
Sample Rate: 2 MSPS
converters (ADCs), with differential and single-ended
14-Bit, Pin-Compatible with 8/10/12-bit
inputs, respectively. The devices operate at a 2
ADS7947/8/9 Family (ADS7946)
MSPS sample rate with a standard 16-clock data
Outstanding Performance:
frame. The devices feature both outstanding dc
precision and excellent dynamic performance; the
– SNR: 84 dB (ADS7945)
ADS7946 is pin-compatible with the 8/10/12-bit
– No Missing Codes
ADS7947/8/9
devices.
The
devices
include
a
– INL: 1.5 LSB (max) (ADS7945)
two-channel
input
multiplexer
and
a
low-power
successive approximation register (SAR) ADC with
Low Power:
an inherent sample-and-hold (S/H) input stage.
– 11.6 mW at 2 MSPS Operation
The ADS7945/6 support a wide analog supply range
– Auto Power-Down at Lower Speeds:
that allows the full-scale input range to extend to
±5 V
– 7.2 mW at 500 kSPS
differential or 5 V single-ended. A simple SPI
, with
– 1.4 mW at 100 kSPS
a digital supply that can operate as low as 1.65 V,
allows for easy interfacing to a wide variety of digital
– 0.3 mW at 20 kSPS
controllers. Automatic power-down can be enabled
Wide Supply Range:
when operating at slower speeds to dramatically
– Analog: 2.7 V to 5.25 V
reduce power consumption.
– Digital: 1.65 V to AVDD
Offered in a tiny 3 mm
× 3 mm QFN package, the
Simple Serial Interface (SPI)
ADS7945/6 are fully specified over the extended
temperature range of
–40°C to +125°C and are
Fully Specified from
–40°C to +125°C
suitable for a wide variety of data acquisition
Tiny Footprint: 3 mm
× 3 mm QFN
applications where high performance, low power, and
small package size are key.
APPLICATIONS
Optical Networking
Medical Instrumentation
Battery-Powered Equipment
Data Acquisition Systems
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas
Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2
SPI is a trademark of Motorola.
3
All other trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright
2011, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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相關代理商/技術參數 |
參數描述 |
|---|---|
| ADS7946 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:14-Bit, 2 MSPS, Dual-Channel, Differential/Single-Ended, Ultralow-Power Analog-to-Digital Converters |
| ADS7946EVM-PDK | 功能描述:數據轉換 IC 開發工具 ADS7946 PERF DEM KIT RoHS:否 制造商:Texas Instruments 產品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V |
| ADS7946SRTER | 功能描述:模數轉換器 - ADC 14B,2MSPS,DUAL-CH, UNIP,PSE-DIF,SAR ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 |
| ADS7946SRTET | 功能描述:模數轉換器 - ADC 14B,2MSPS,DUAL-CH, UNIP,PSE-DIF,SAR ADC RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 |
| ADS7947 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:12/10/8-Bit 2MSPS, Dual-Channel Unipolar Pseudo-Differential Ultralow-Power SAR Analog-to-Digital Converters |
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