LTC1414 Linear Technology, LTC1414 Datasheet
LTC1414
Manufacturer Part Number
LTC1414
Description
14-Bit/ 2.2Msps/ Sampling A/D Converter
Manufacturer
Linear Technology
Datasheet
1.LTC1414.pdf
(20 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
LTC1414CGN
Manufacturer:
LT/凌特
Quantity:
20 000
Company:
Part Number:
LTC1414CGN#PBF
Manufacturer:
LT
Quantity:
3 000
Part Number:
LTC1414IGN
Manufacturer:
LT/凌特
Quantity:
20 000
APPLICATIO S
FEATURES
TYPICAL APPLICATIO
COMP
10 F
V
A
A
1 F
REF
IN
IN
Sample Rate: 2.2Msps
Outstanding Spectral Purity:
80dB S/(N + D) and 95dB SFDR at 100kHz
78dB S/(N + D) and 84dB SFDR at Nyquist
Ultralow Distortion with Single-Ended or
Differential Inputs
and Rail-to-Rail Op Amp Requirements
Easy Hookup for External or Internal Reference
No Pipeline Delay
Power Dissipation: 175mW on 5V Supplies
28-Pin Narrow SSOP Package
Telecommunications
Digital Signal Processing
Multiplexed Data Acquisition Systems
High Speed Data Acquisition
Spectrum Analysis
Imaging Systems
+
–
2.5V Bipolar Input Range Eliminates Level Shifting
10 F
LTC1414
BUFFER
S/H
– 5V
4.0625V
V
U
2k
SS
REFERENCE
2.5V
AGND
14-BIT ADC
10 F
U
TIMING AND
AV
LOGIC
DD
14
DGND
5V
DV
DD
BUFFERS
OUTPUT
OGND
OV
LOGIC SUPPLY
OPTIONAL 3V
DD
•
•
•
DESCRIPTIO
The LTC
verter which draws only 175mW from 5V supplies. This
high performance ADC includes a high dynamic range
sample-and-hold, a precision reference and requires no
external components.
The LTC1414’s high performance sample-and-hold has a
full-scale input range of 2.5V. Outstanding AC perfor-
mance includes 80dB S/(N + D) and 95dB SFDR with a
100kHz input. The performance remains high at the Nyquist
input frequency of 1.1MHz with 78dB S/(N + D) and 84dB
SFDR.
The unique differential input sample-and-hold can acquire
single-ended or differential input signals up to its 40MHz
bandwidth. The 70dB common mode rejection can elimi-
nate ground loops and common mode noise by measuring
signal differentially from the source
The ADC has a microprocessor compatible, 14-bit parallel
output port. There is no pipline delay in the conversion
results.
D13 (MSB)
D0 (LSB)
BUSY
CONVST
, LTC and LT are registered trademarks of Linear Technology Corporation.
1414 TA01
Sampling A/D Converter
®
1414 is a 14-bit, 2.2Msps, sampling A/D con-
Effective Bits and Signal-to-Noise + Distortion
14
13
12
11
10
9
8
7
6
5
4
3
2
1k
f
U
SAMPLE
= 2.2MHz
10k
vs Input Frequency
INPUT FREQUENCY (Hz)
14-Bit, 2.2Msps,
100k
1M
LTC1414
1414 TA02
10M
86
80
74
68
1