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參數(shù)資料
| 型號： | LTC1598L |
| 廠商： | Linear Technology Corporation |
| 元件分類： | 串行ADC |
| 英文描述： | 4- and 8-Channel, 3V Micropower Sampling 12-Bit Serial I/O A/D Converters |
| 中文描述： | 4 -和8通道，3V的微取樣12位串行I /辦公自動化/ D轉(zhuǎn)換器 |
| 文件頁數(shù)： | 1/24頁 |
| 文件大小： | 278K |
| 代理商： | LTC1598L |
1
LTC1594L/LTC1598L
4- and 8-Channel,
3V Micropower Sampling
12-Bit Serial I/O A/D Converters
APPLICATIU
DESCRIPTIOU
The LTC
1594L/LTC1598L are 3V micropower, 12-bit
sampling A/D converters that feature 4- and 8-channel
multiplexers, respectively. They typically draw only 160
μ
A
of supply current when converting and automatically
power down to a typical supply current of 1nA between
conversions. The LTC1594L is available in a 16-pin SO
package and the LTC1598L is packaged in a 24-pin
SSOP. Both operate on a 3V 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.
, LTC and LT are registered trademarks of Linear Technology Corporation.
FEATURES
TYPICAL APPLICATIO
N
U
I
12-Bit Resolution on 3V Supply
I
Low Supply Current: 160
μ
A Typ
I
Auto Shutdown to 1nA
I
Guaranteed
±
3/4LSB Max DNL
I
Guaranteed 2.7V Operation
(5V Versions Available: LTC1594/LTC1598)
I
Multiplexer: 4-Channel MUX (LTC1594L)
8-Channel MUX (LTC1598L)
I
Separate MUX Output and ADC Input Pins
I
MUX and ADC May Be Controlled Separately
I
Sampling Rate: 10.5ksps
I
I/O Compatible with QSPI, SPI and MICROWIRE
TM
, etc.
I
Small Package: 16-Pin Narrow SO (LTC1594L)
24-Pin SSOP (LTC1598L)
I
Pen Screen Digitizing
I
Battery-Operated Systems
I
Remote Data Acquisition
I
Isolated Data Acquisition
I
Battery Monitoring
I
Temperature Measurement
MICROWIRE is a trademark of National Semiconductor Corporation.
SAMPLE FREQUENCY (kHz)
0.1
1
S
μ
A
10
100
1000
1
10
100
1594L/98L TA02
T
A
= 25
°
C
V
CC
= 2.7V
V
REF
= 2.5V
f
CLK
= 200kHz
Supply Current vs Sample Rate
12
μ
W, 8-Channel, 12-Bit ADC Samples at 200Hz and Runs Off a 3V Supply
ANALOG
INPUTS
0V TO 3V
RANGE
1k
1
μ
F
OPTIONAL
ADC FILTER
20
21
22
23
24
1
2
3
8
4, 9
MPU
SERIAL DATA LINK
MICROWIRE AND
SPI COMPATABLE
10
6
5, 14
7
11
12
13
18
17
ADCIN
16
V
REF
15, 19
V
CC
1
μ
F
3V
1594L/98L TA01
CH0
CH1
CH2
CH3
CH4
CH5
CH6
CH7
COM
GND
CSADC
CSMUX
CLK
D
IN
D
OUT
NC
NC
LTC1598L
MUXOUT
+
–
12-BIT
SAMPLING
ADC
8-CHANNEL
MUX
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC1598LCG | Replaced by ADS7961 : 8-Bit, 76 kSPS ADC Serial Out, On-Chip 20 Ch. Analog Mux, 19 Ch. 28-PLCC |
| LTC1594L | 4- Channel, 3V Micropower Sampling 12-Bit Serial I/O A/D Converters(四通道,3V微功耗采樣12位串行輸入/輸出模數(shù)轉(zhuǎn)換器) |
| LTC1594 | 8-Bit, 40 kSPS ADC Serial-Out, On-Chip 12-Ch. Analog Mux, 11 Ch. 20-SOIC |
| LTC1598IG | 4- and 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converters |
| LTC1594CS | 4- and 8-Channel, Micropower Sampling 12-Bit Serial I/O A/D Converters |
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