AS1419 Datasheet, PDF (1/20 Pages) Austin Semiconductor – 14 Bit, 800ksps Sampling A/D Converter with Shutdown

Austin Semiconductor, Inc.
ADC
AS1419
AS1419A
14 Bit, 800ksps Sampling
A/D Converter with Shutdown
PIN ASSIGNMENT
(Top View)
FEATURES
• 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 LCC and Flatpack packages
OPTIONS
• Package(s)
28-Pin Flat-pack
28-Pin LCC
MARKING
F
ECA
28-Pin Flat Pack (F)
+A_IN 1
-A_IN 2
V_REF 3
REFcomp 4
A_GND 5
D13 6
D12 7
D11 8
D10 9
D9 10
D8 11
D7 12
D6 13
D_GND 14
28 AV_DD
27 DV_DD
26 V_SS
25 BUSY\
24 CS\
23 CONVST\
22 RD\
21 SHDN\
20 D0
19 D1
18 D2
17 D3
16 D4
15 D5
28-Pin LCC (ECA)
• Operating Temperature Ranges
Extended Temperature (-55^oC to +125^oC)
XT
Industrial Temperature (-40°C to +85°C)
IT
Military Processing (-55°C to +125°C)
MIL
Space Processing (-55^oC to +125^oC)
SPACE*
*As defined by individual customer Source Control
Drawing (SCD)
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 flexibility for low power systems.
The AS1419 has a full-scale input range of ±2.5V.
Outstanding 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.
4 3 2 28 27 26
A_{GND 5}
1
2 5 ^BUSY\
D13 ₆
2 4 ^CS\
D12 ₇
2 3 ^CONVST\
D11 ₈
2 2 ^RD\
D10 ₉
2 1 ^SHDN\
D9 10
20 D0
D8 11
19 D1
12 13 14 15 16 17 18
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.austinsemiconductor.com
AS1419 & AS1419A
Rev. 1.5 08/09
Austin Semiconductor, Inc. reserves the right to change products or specifications without notice.
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