AS1419
AS1419A
14 Bit, 800ksps Sampling
A/D Converter with Shutdown
FEATURES
•
Sample Rate: 800ksps
ADC
PIN ASSIGNMENT
(Top View)
28-Pin Flat Pack (F)
+A
IN
-A
IN
V
REF
REFcomp
A
GND
D13
D12
D11
D10
D9
D8
D7
D6
D
GND
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
DV
DD
V
SS
BUSY\
CS\
CONVST\
RD\
SHDN\
D0
D1
D2
D3
D4
D5
AV
DD
• 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 LCC and Flatpack packages
OPTIONS
•
Package(s)
28-Pin Flat-pack
28-Pin LCC
MARKING
28-Pin LCC (ECA)
REFcomp
V
REF
-A
IN
+A
IN
AV
DD
DV
DD
V
SS
A
GND
D13
D12
D11
D10
D9
D8
F
ECA
•
Operating Temperature Ranges
Extended Temperature (-55
o
C to +125
o
C)
XT
Industrial Temperature (-40°C to +85°C)
IT
Military Processing (-55°C to +125°C)
MIL
o
o
Space Processing (-55 C to +125 C)
SPACE*
*As defined by individual customer Source Control
Drawing (SCD)
4 3 2
28 27 26
5
25
1
6
24
7
23
8
22
9
21
10
20
11
19
12 13 14 15 16 17 18
D2
D3
D4
D5
D
GND
D6
D7
BUSY\
CS\
CONVST\
RD\
SHDN\
D0
D1
GENERAL DESCRIPTION
The AS1419 is a 1μs, 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
fl
exibility for low power systems.
The AS1419 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 microprocessor 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.
AS1419 & AS1419A
Rev. 1.7 06/10
Typical applications are telecommunications, digital
signal processing, multiplexed data acquisition systems,
high speed data acquisitions, spectrum analysis, and imaging
systems.
For more products and information
please visit our web site at
www.micross.com
Micross Components reserves the right to change products or specifications without notice.
1
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