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參數資料
| 型號： | LTC1274 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 12-Bit, 10mW, 100ksps ADCs with 1uA Shutdown |
| 中文描述： | 12位，僅為10mW，100ksps的ADC的與1uA的關斷 |
| 文件頁數： | 1/20頁 |
| 文件大?。?/td> | 411K |
| 代理商： | LTC1274 |
1
LTC1274/LTC1277
12-Bit, 10mW, 100ksps
ADCs with 1
μ
A Shutdown
U
A
O
PPLICATI
Single 5V Supply, 10mW, 100kHz, 12-Bit ADC
TYPICAL
S
FEATURE
D
The LTC
1274/LTC1277 are 8
μ
s sampling 12-bit A/D
converters which draw only 2mA (typ) from single 5V or
±
5V supplies. These easy-to-use devices come complete
with a 2
μ
s sample-and-hold, a precision reference and an
internally trimmed clock. Unipolar and bipolar conversion
modes add to the flexibility of the ADCs.
Two power-down modes are available in the LTC1277. In
Nap mode, the LTC1277 draws only 180
μ
A and the instant
wake-up from Nap mode allows the LTC1277 to be pow-
ered down even during brief inactive periods. In Sleep
mode only 1
μ
A will be drawn. A REFRDY signal is used to
show the ADC is ready to sample after waking up from
Sleep mode. The LTC1274 also provides the Sleep mode
and REFRDY signal.
The A/D converters convert 0V to 4.096V unipolar inputs
from a single 5V supply or
±
2.048V bipolar inputs from
±
5V supplies.
The LTC1274 has a single-ended input and a 12-bit
parallel data format. The LTC1277 offers a differential
input and a 2-byte read format. The bipolar mode is
formatted as 2’s complement for the LTC1274 and offset
binary for the LTC1277.
U
ESCRIPTIO
I
Low Power Dissipation: 10mW
I
Sample Rate: 100ksps
I
Samples Inputs Beyond Nyquist, 72dB S/(N + D)
and 82dB THD at f
IN
= 100kHz
I
Single Supply 5V or
±
5V Operation
I
Power Shutdown to 1
μ
A in Sleep Mode
I
180
μ
A Nap Mode (LTC1277) with Instant Wake-Up
I
Internal Reference Can Be Overdriven
I
Internal Synchronized Clock
I
0V to 4.096V or
±
2.048V Input Ranges (1mV/LSB)
I
24-Lead SO Package
, LTC and LT are registered trademarks of Linear Technology Corporation.
Supply Current vs Sample Rate with
Sleep and Nap Modes
10000
C
REF
= 4.7
μ
F
SAMPLE RATE (Hz)
S
μ
A
1000
100
10
1
0.1
1k
100k
LTC1274/77 TA02
10
1
10k
100
WITHOUT SLEEP OR NAP
NAP = 5V
(SLEEP MODE)
NAP = REFRDY
(SLEEP MODE)
NAP MODE
U
S
A
O
PPLICATI
I
Battery-Powered Portable Systems
I
High Speed Data Acquisition for PCs
I
Digital Signal Processing
I
Multiplexed Data Acquisition Systems
I
Audio and Telecom Processing
I
Spectrum Analysis
1
2
3
4
5
6
7
8
9
10
11
12
24
23
22
21
20
19
18
17
16
15
14
13
A
IN+
A
IN–
V
REF
AGND
REFRDY
SLEEP
NAP
D7
D6
D5
D4
DGND
V
DD
V
SS
BUSY
CS
RD
CONVST
HBEN
V
LOGIC
D0/8
D1/9
D2/10
D3/11
LTC1277
0.1
μ
F
+
10
μ
F
ANALOG
DIFFERENTIAL INPUTS
(0V TO 4.096V)
2.42V
V
REF
OUTPUT
10
μ
F
0.1
μ
F
5V
8-BIT
PARALLEL
BUS
μ
P
CONTROL
LINES
OPTIONAL 3V SUPPLY
TO INTERFACE WITH 3V
PROCESSOR
LTC1274/77 TA01
+
相關PDF資料 |
PDF描述 |
|---|---|
| LTC1274IS | Replaced by TLC2933A : High Performance Phase Locked Loop 14-TSSOP -20 to 75 |
| LTC1277CS | 12-Bit, 10mW, 100ksps ADCs with 1uA Shutdown |
| LTC1275AC | Phase Locked Loop 14-TSSOP -20 to 75 |
| LTC1276BC | 12-Bit, 300ksps Sampling A/D Converters with Reference |
| LTC1276BCN | 12-Bit, 300ksps Sampling A/D Converters with Reference |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LTC1274CSW | 功能描述:IC A/D CONV 12BIT W/SHTDN 24SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端，單極 |
| LTC1274CSW#PBF | 功能描述:IC A/D CONV 12BIT W/SHTDN 24SOIC RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1 系列:microPOWER™ 位數:8 采樣率（每秒）:1M 數據接口:串行，SPI? 轉換器數目:1 功率耗散（最大）:- 電壓電源:模擬和數字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應商設備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數目和類型:8 個單端，單極 產品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6 |
| LTC1274CSW#TR | 功能描述:IC ADC 12BIT SAMPL SHTDWN 24SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端，單極 |
| LTC1274CSW#TRPBF | 功能描述:IC A/D CONV 12BIT W/SHTDN 24SOIC RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:16 采樣率（每秒）:45k 數據接口:串行 轉換器數目:2 功率耗散（最大）:315mW 電壓電源:模擬和數字 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數目和類型:2 個單端，單極 |
| LTC1274ISW | 功能描述:IC A/D CONV 12BIT W/SHTDN 24SOIC RoHS:否 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率（每秒）:300k 數據接口:并聯(lián) 轉換器數目:1 功率耗散（最大）:75mW 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:24-SOIC（0.295"，7.50mm 寬） 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端，單極；1 個單端，雙極 |
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