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參數(shù)資料
| 型號： | LTC1401CS8#TR |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC ADC 12BIT 200KSPS SHTDN 8SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 位數(shù)： | 12 |
| 采樣率（每秒）： | 200k |
| 數(shù)據(jù)接口： | MICROWIRE?，串行，SPI? |
| 轉(zhuǎn)換器數(shù)目： | 1 |
| 功率耗散（最大）： | 30mW |
| 電壓電源： | 單電源 |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 8-SOIC |
| 包裝： | 帶卷 (TR) |
| 輸入數(shù)目和類型： | 1 個單端，單極 |
1
LTC1401
1401fa
DESCRIPTIO
U
FEATURES
APPLICATIO S
U
TYPICAL APPLICATIO
U
Complete
SO-8, 12-Bit, 200ksps
ADC with Shutdown
The LTC
1401 is a complete 200ksps, 12-bit A/D con-
verter that converts 0V to 2.048V unipolar input and draws
only 15mW from a single 3V supply. This easy-to-use
device comes complete with a 315ns sample-and-hold
and a precision reference. Maximum DC specifications
include
±1LSB INL, ±1LSB DNL and 45ppm/°C full-scale
drift over temperature.
The LTC1401 has three power saving modes: Nap and
Sleep, through the serial interface and Shutdown by
setting the SHDN pin to zero. In Nap mode, it consumes
only 1.5mW of power and can wake up and convert
immediately. In Sleep (Shutdown) mode, it consumes
19.5
W (13.5W) of power typically. Upon power-up
from Sleep or Shutdown mode, a reference ready (REFRDY)
signal is available in the serial word to indicate that the
reference has settled and the chip is ready to convert.
The 3-wire serial port allows compact and efficient data
transfer to a wide range of microprocessors, microcon-
trollers and DSPs.
■ Complete 12-Bit ADC with Reference in SO-8
■ Single Supply 3V Operation
■ Sample Rate: 200ksps
■ Power Dissipation: 15mW (Typ)
■ 68dB S/(N + D) and – 72dB THD at 50kHz
■ No Missing Codes Over Temperature
■ Nap Mode with Instant Wake-Up: 1.5mW
■ Sleep Mode: 19.5
W
■ Shutdown Mode: 13.5
W
■ High Impedance Analog Input
■ Input Range (0.5mV/LSB): 0V to 2.048V
■ Internal Reference Can Be Overdriven Externally
■ 3-Wire Interface to DSPs and Processors (SPI and
MICROWIRE
TM Compatible)
Single 3V Supply, 200kHz, 12-Bit Sampling A/D Converter
■ Low Power and Battery-Operated Systems
■
Handheld or Portable Instruments
■ High Speed Data Acquisition
■ Digital Signal Processing
■
Multiplexed Data Acquisition Systems
■ Telecommunication
■ Digital Radio
■
Spectrum Analysis
VCC
AIN
VREF
GND
SHDN
CONV
CLK
DOUT
P1.4
P1.3
P1.2
LTC1401
MPU
SERIAL
DATA LINK
+
0.1
F
10
F
+
0.1
F
10
F
1.20V
ANALOG INPUT
(0V TO 2.048V)
3V
1401 TA01
SAMPLE RATE (Hz)
0.01
SUPPLY
CURRENT
(mA)
1
10
100
10
1k
1M
LTC1401 TA02
0.1
0.01
0.001
0.1
1
100
10k 100k
NORMAL CONVERSION
NAP MODE
BETWEEN CONVERSION
SHUTDOWN MODE
BETWEEN CONVERSION
SLEEP MODE BETWEEN
CONVERSION
3.2MHz CLOCK
TA = 25°C
Power Consumption vs Sample Rate
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
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