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參數資料
| 型號： | LTC1196-2BCS8#TRPBF |
| 廠商： | Linear Technology |
| 文件頁數： | 1/28頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC A/DCONV 8BIT 1MHZ SAMPL 8SOIC |
| 標準包裝： | 2,500 |
| 位數： | 8 |
| 采樣率（每秒）： | 1M |
| 數據接口： | 串行 |
| 轉換器數目： | 1 |
| 功率耗散（最大）： | 50mW |
| 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） |
| 供應商設備封裝： | 8-SOIC |
| 包裝： | 帶卷 (TR) |
| 輸入數目和類型： | 1 個差分，單極 |
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LTC1196/LTC1198
1
119698fb
TYPICAL APPLICATION
FEATURES
APPLICATIONS
DESCRIPTION
8-Bit, SO-8, 1Msps ADCs
with Auto-Shutdown Options
Single 5V Supply, 1Msps, 8-Bit Sampling ADC
n
High Speed Data Acquisition
n
Disk Drives
n
Portable or Compact Instrumentation
n
Low Power or Battery-Operated Systems
n
High Sampling Rates: 1MHz (LTC1196)
750kHz (LTC1198)
n
Low Cost
n
Single Supply 3V and 5V Specications
n
Low Power: 10mW at 3V Supply
50mW at 5V Supply
n
Auto-Shutdown: 1nA Typical (LTC1198)
n
±1/2LSB Total Unadjusted Error over Temperature
n
3-Wire Serial I/O
n
1V to 5V Input Span Range (LTC1196)
n
Converts 1MHz Inputs to 7 Effective Bits
n
Differential Inputs (LTC1196)
n
2-Channel MUX (LTC1198)
n
SO-8 Plastic Package
The LTC
1196/LTC1198 are 600ns, 8-bit A/D converters
with sampling rates up to 1MHz. They are offered in 8-pin
SO packages and operate on 3V to 6V supplies. Power
dissipation is only 10mW with a 3V supply or 50mW with
a 5V supply. The LTC1198 automatically powers down
to a typical supply current of 1nA whenever it is not
performing conversions. These 8-bit switched-capacitor
successive approximation ADCs include sample-and-
holds. The LTC1196 has a differential analog input; the
LTC1198 offers a software selectable 2-channel MUX.
The 3-wire serial I/O, SO-8 packages, 3V operation and
extremely high sample rate-to-power ratio make these
ADCs an ideal choice for compact, high speed systems.
These ADCs can be used in ratiometric applications or
with external references. The high impedance analog in-
puts and the ability to operate with reduced spans below
1V full scale (LTC1196) allow direct connection to signal
sources in many applications, eliminating the need for
gain stages.
The A-grade devices are specied with total unadjusted
error of ±1/2LSB maximum over temperature.
Effective Bits and S/(N + D) vs Input Frequency
INPUT FREQUENCY (Hz)
1k
S/(N
+
D)
(dB)
8
7
6
5
4
3
2
1
0
10k
100k
1M
11968 TA01b
50
44
EFFECTIVE
NUMBER
OF
BITS
(ENOBs)
VREF =VCC = 2.7V
fSMPL = 383kHz (LTC1196)
fSMPL = 287kHz (LTC1198)
VREF =VCC = 5V
fSMPL = 1MHz (LTC1196)
fSMPL = 750kHz (LTC1198)
TA = 25°C
5V
1μF
ANALOG INPUT
0V TO 5V RANGE
1196/98 TA01
SERIAL DATA LINK TO
ASIC, PLD, MPU, DSP,
OR SHIFT REGISTERS
–IN
GND
VCC
CLK
DOUT
+IN
CS
1
2
3
4
8
7
6
5
LTC1196
VREF
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. All other trademarks are the property of their respective owners.
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