参数资料
型号: LTC1419AIG#TR
厂商: Linear Technology
文件页数: 1/20页
文件大小: 0K
描述: IC ADC 14BIT 800KSPS SHDN 28SSOP
标准包装: 2,000
位数: 14
采样率(每秒): 800k
数据接口: 并联
转换器数目: 1
功率耗散(最大): 240mW
电压电源: 双 ±
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 28-SSOP(0.209",5.30mm 宽)
供应商设备封装: 28-SSOP
包装: 带卷 (TR)
输入数目和类型: 2 个单端,双极;1 个差分,双极
1
LTC1419
1419fb
14-Bit, 800ksps Sampling
A/D Converter with Shutdown
Sample Rate: 800ksps
Power Dissipation: 150mW
81.5dB S/(N + D) and 93dB THD
No Missing Codes
No Pipeline Delay
Nap and Sleep Shutdown Modes
Operates with 2.5V Internal 15ppm/
°C
Reference or External Reference
True Differential Inputs Reject Common Mode Noise
20MHz Full-Power Bandwidth Sampling
Bipolar Input Range:
±2.5V
28-Pin SSOP and SO Packages
The LTC
1419 is a 1
s, 800ksps, 14-bit sampling
A/D converter that draws only 150mW from
±5V supplies.
This easy-to-use device includes a high dynamic range
sample-and-hold and a precision reference. Two digitally
selectable power shutdown modes provide flexibility for
low power systems.
The LTC1419 has a full-scale input range of
±2.5V. Out-
standing AC performance includes 81.5dB S/(N + D) and
93dB THD with a 100kHz input; 80dB S/(N + D) and 86dB
THD at the Nyquist input frequency of 400kHz.
The unique differential input sample-and-hold can acquire
single-ended or differential input signals up to its 20MHz
bandwidth. The 60dB common mode rejection allows
users to eliminate ground loops and common mode noise
by measuring signals differentially from the source.
The ADC has a
P compatible, 14-bit parallel output port.
There is no pipeline delay in the conversion results. A
separate convert start input and data ready signal (BUSY)
ease connections to FIFOs, DSPs and microprocessors.
Telecommunications
Digital Signal Processing
Multiplexed Data Acquisition Systems
High Speed Data Acquisition
Spectrum Analysis
Imaging Systems
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
+AIN
–AIN
VREF
REFCOMP
AGND
D13(MSB)
D12
D11
D10
D9
D8
D7
D6
DGND
AVDD
DVDD
VSS
BUSY
CS
CONVST
RD
SHDN
D0
D1
D2
D3
D4
D5
LTC1419
1
F
10
F
DIFFERENTIAL
ANALOG INPUT
(–2.5V TO 2.5V)
VREF
OUTPUT
2.50V
10
F
10
F
5V
–5V
14-BIT
PARALLEL
BUS
P CONTROL
LINES
1419 TA01
800kHz, 14-Bit Sampling A/D Converter
INPUT FREQUENCY (Hz)
1k
EFFECTIVE
BITS
SIGNAL/(NOISE
+
DISTORTION)
(dB)
14
13
12
11
10
9
8
7
6
5
4
3
2
86
80
74
68
62
10k
100k
1419 TA02
1M
2M
fSAMPLE = 800kHz
Effective Bits and Signal-to-(Noise + Distortion)
vs Input Frequency
FEATURES
DESCRIPTIO
U
APPLICATIO S
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. Protected by U.S. Patents
including 5581252.
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