參數(shù)資料
型號(hào): LTC1594IS
廠(chǎng)商: Linear Technology
文件頁(yè)數(shù): 1/24頁(yè)
文件大?。?/td> 0K
描述: IC A/D CONV 12BIT SRL 4CH 16SOIC
標(biāo)準(zhǔn)包裝: 50
位數(shù): 12
采樣率(每秒): 16.8k
數(shù)據(jù)接口: MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 1.6mW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類(lèi)型: 表面貼裝
封裝/外殼: 16-SOIC(0.154",3.90mm 寬)
供應(yīng)商設(shè)備封裝: 16-SOIC
包裝: 管件
輸入數(shù)目和類(lèi)型: 8 個(gè)單端,單極
1
LTC1594/LTC1598
15948fb
The LTC
1594/LTC1598 are micropower, 12-bit sampling
A/D converters that feature 4- and 8-channel multiplexers,
respectively. They typically draw only 320
μA of supply
current when converting and automatically power down to
a typical supply current of 1nA between conversions. The
LTC1594 is available in a 16-pin SO package and the
LTC1598 is packaged in a 24-pin SSOP. Both operate on
a 5V supply. The 12-bit, switched-capacitor, successive
approximation ADCs include a sample-and-hold.
On-chip serial ports allow efficient data transfer to a wide
range of microprocessors and microcontrollers over three
or four wires. This, coupled with micropower consump-
tion, makes remote location possible and facilitates trans-
mitting data through isolation barriers.
The circuit can be used in ratiometric applications or with
an external reference. The high impedance analog inputs
and the ability to operate with reduced spans (to 1.5V full
scale) allow direct connection to sensors and transducers
in many applications, eliminating the need for gain stages.
4- and 8-Channel,
Micropower Sampling
12-Bit Serial I/O A/D Converters
12-Bit Resolution
Auto Shutdown to 1nA
Low Supply Current: 320
μA Typ
Guaranteed
±3/4LSB Max DNL
Single Supply 5V Operation
(3V Versions Available: LTC1594L/LTC1598L)
Multiplexer: 4-Channel MUX (LTC1594)
8-Channel MUX (LTC1598)
Separate MUX Output and ADC Input Pins
MUX and ADC May Be Controlled Separately
Sampling Rate: 16.8ksps
I/O Compatible with QSPI, SPI and MICROWIRE
TM, etc.
Small Package: 16-Pin Narrow SO (LTC1594)
24-Pin SSOP (LTC1598)
Pen Screen Digitizing
Battery-Operated Systems
Remote Data Acquisition
Isolated Data Acquisition
Battery Monitoring
Temperature Measurement
24
μW, 4-Channel, 12-Bit ADC Samples at 200Hz and Runs Off a 5V Supply
Supply Current vs Sample Rate
APPLICATIO S
U
FEATURES
DESCRIPTIO
U
TYPICAL APPLICATIO
U
, LT, LTC and LTM are registered trademarks of Linear Technology Corporation.
All other trademarks are the property of their respective owners.
ANALOG
INPUTS
0V TO 5V
RANGE
1k
1
μF
1594/98 TA01
OPTIONAL
ADC FILTER
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
20
21
22
23
24
1
2
3
+
8-CHANNEL
MUX
8
COM
GND
4, 9
MPU
SERIAL DATA LINK
MICROWIRE AND
SPI COMPATABLE
10
6
5, 14
7
11
CSADC
CSMUX
CLK
DIN
DOUT
12
13
NC
12-BIT
SAMPLING
ADC
ADCIN
MUXOUT
18
17
16
15, 19
1
μF
5V
VREF VCC
SAMPLE FREQUENCY (kHz)
0.1
1
SUPPLY
CURRENT
A)
10
100
1000
1
10
100
1594/98 TA02
TA = 25°C
VCC = 5V
VREF = 5V
fCLK = 320kHz
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