參數(shù)資料
型號(hào): LTC1275
廠商: Linear Technology Corporation
元件分類: 串行ADC
英文描述: 12-Bit, 300ksps Sampling A/D Converters with Reference(300ksps,12位采樣A/D轉(zhuǎn)換器(帶電壓基準(zhǔn)))
中文描述: 12位,300ksps速率與參考采樣A / D轉(zhuǎn)換器(300ksps速率,12位采樣的A / D轉(zhuǎn)換器(帶電壓基準(zhǔn)))
文件頁數(shù): 1/24頁
文件大小: 365K
代理商: LTC1275
1
LTC1273
LTC1275/LTC1276
12-Bit, 300ksps Sampling
A/D Converters with Reference
S
FEATURE
D
The LTC1273/LTC1275/LTC1276 are 300ksps, sampling
12-bit A/D converters that draw only 75mW from single
5V or
±
5V supplies. These easy-to-use devices come
complete with 600ns sample-and-holds, precision refer-
ences and internally trimmed clocks. Unipolar and bipo-
lar conversion modes provide flexibility for various appli-
cations. They are built with LTBiCMOS
TM
switched ca-
pacitor technology.
These devices have 25ppm/
°
C (max) internal references.
The LTC1273 converts 0V to 5V unipolar inputs from a
single 5V supply. The LTC1275/LTC1276 convert
±
2.5V
and
±
5V respectively from
±
5V supplies. Maximum DC
specifications include
±
1/2LSB INL,
±
3/4LSB DNL and
25ppm/
°
C full scale drift over temperature. Outstanding
AC performance includes 70dB S/(N + D) and 77dB THD
at the Nyquist input frequency of 150kHz.
The internal clock is trimmed for 2.7
μ
s maximum conver-
sion time. The clock automatically synchronizes to each
sample command eliminating problems with asynchro-
nous clock noise found in competitive devices. A high
speed parallel interface eases connections to FIFOs, DSPs
and microprocessors.
U
ESCRIPTIO
I
Single Supply 5V or
±
5V Operation
I
300ksps Sample Rate
I
75mW (Typ) Power Dissipation
I
On-Chip 25ppm/
°
C Reference
I
Internal Synchronized Clock; No Clock Required
I
High Impedance Analog Input
I
70dB S/(N + D) and 77dB THD at Nyquist
I
±
1/2LSB INL and
±
3/4LSB DNL Max (A Grade)
I
ESD Protected On All Pins
I
24-Pin Narrow DIP and SOL Packages
I
Variety of Input Ranges:
0V to 5V (LTC1273)
±
2.5V (LTC1275)
±
5V (LTC1276)
Effective Bits and Signal to (Noise + Distortion)
vs Input Frequency
LTBiCMOS
TM
is a trademark of Linear Technology Corporation
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
V
REF
AGND
D11
D10
D9
D8
D7
D6
D5
D4
DGND
V
DD
NC
BUSY
CS
RD
HBEN
NC
NC
D0/8
D1/9
D2/10
D3/11
LTC1273
+
0.1
μ
F
10
μ
F
2.42V
V
REF
OUTPUT
ANALOG INPUT
(0V TO 5V)
+
10
μ
F
0.1
μ
F
5V
8- OR 12-BIT
PARALLEL BUS
μ
P CONTROL
LINES
LTC1273/75/76 TA01
INPUT FREQUENCY (Hz)
10k
0
E
3
2
5
4
7
6
10
100k
2M
LTC1273/75/76 TA02
1
9
8
12
11
1M
62
56
50
74
68
S
f
SAMPLE
= 300kHz
NYQUIST
FREQUENCY
U
S
A
O
PPLICATI
I
High Speed Data Acquisition
I
Digital Signal Processing
I
Multiplexed Data Acquisition Systems
I
Audio and Telecom Processing
I
Spectrum Analysis
U
A
O
PPLICATI
TYPICAL
Single 5V Supply, 300ksps, 12-Bit Sampling A/D Converter
相關(guān)PDF資料
PDF描述
LTC1276 12-Bit, 300ksps Sampling A/D Converters with Reference(300ksps,12位采樣A/D轉(zhuǎn)換器(帶電壓基準(zhǔn)))
LTC1277 12-Bit, 10mW, 100ksps ADCs with 1mA Shutdown(10mW, 100ksps,12位A/D轉(zhuǎn)換器(帶1mA關(guān)斷))
LTC1278-4 12-Bit, 400ksps Sampling A/D Converter with Shutdown(400ksps,12位,采樣模數(shù)轉(zhuǎn)換器(帶關(guān)斷))
LTC1278-5 12-Bit, 500ksps Sampling A/D Converter with Shutdown(500ksps,12位,采樣模數(shù)轉(zhuǎn)換器(帶關(guān)斷))
LTC1278 12-Bit, 500ksps Sampling A/D Converter with Shutdown
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