ADS8339 Datasheet, PDF (1/40 Pages) Texas Instruments – ADS8339 16-Bit, 250-kSPS, Serial Interface, Micro-Power, Miniature, SAR Analog-to-Digital Converter

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
ADS8339
SBAS677A – JUNE 2014 – REVISED OCTOBER 2014
ADS8339 16-Bit, 250-kSPS, Serial Interface, Micro-Power, Miniature,
SAR Analog-to-Digital Converter
1 Features
•1 Sample Rate: 250 kHz
• 16-Bit Resolution
• Zero Latency at Full Speed
• Unipolar Single-Ended Input Range:
– 0 V to V_ref
• SPI™-Compatible Serial Interface with Daisy-
Chain Option
• Uses Internal Clock for Conversion
• Excellent Performance:
– 93.6 dB SNR (typ) at 10-kHz Input
– –106 dB THD (typ) at 10-kHz Input
– ±2.0 LSB INL (max)
– ±1.0 LSB DNL (max)
• Low-Power Dissipation:
– 17.5 mW (typ) at 250 kSPS
• Power Scales Linearly with Speed:
– 1.75 mW at 25 kSPS
• Power Dissipation During Power-Down State:
– 0.25 μW (typ)
• Package: VSSOP-10
2 Applications
• Battery-Powered Equipment
• Data Acquisition Systems
• Instrumentation and Process Controls
• Medical Electronics
• Optical Networking
3 Description
The ADS8339 is a 16-bit, 250-kSPS, analog-to-digital
converter (ADC). The device operates with a 2.25-V
to 5.5-V external reference. The device includes a
capacitor-based, successive-approximation register
(SAR) ADC with an inherent sample-and-hold circuit.
The device includes a 25-MHz, SPI-compatible serial
interface. The interface is designed to support daisy-
chaining or cascading of multiple devices.
Furthermore, a busy indicator makes synchronizing
with the digital host easy. The unipolar, single-ended
input range for the device supports an input swing of
0 V to V_ref.
The device is optimized for low-power operation and
power consumption scales directly with speed. This
feature makes the device attractive for lower speed
applications. The ADS8339 is available in a VSSOP-
10 package.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ADS8339
VSSOP (10)
3.00 mm × 3.00 mm
(1) For all available packages, see the orderable addendum at
the end of the datasheet.
space
space
space
REF
IN+
+100 mV
2.25 V to +VA + 0.1 V
4.5 V to 5.5 V
2.375 V to +VA
0V
100 mV
IN
0V
100 mV
100 mV
VDIFF = (IN+) J ( IN) = 0 V to REF
NOTE: (IN+) _ ( IN)
H100 mV
+VA REFIN +VBD
IN+
SDO
ADS8339
SDI
SCLK
IN
CONVST
GND
Pseudo-Differential Input
1
An IMPORTANT NOTICE at the end of this data sheet addresses availability, warranty, changes, use in safety-critical applications,
intellectual property matters and other important disclaimers. PRODUCTION DATA.