ADC128S052_16 Datasheet, PDF (1/32 Pages) Texas Instruments – 8-Channel, 200 kSPS to 500 kSPS, 12-Bit A/D Converter

Product
Folder
Sample &
Buy
Technical
Documents
Tools &
Software
Support &
Community
ADC128S052, ADC128S052-Q1
SNAS333E – AUGUST 2005 – REVISED DECEMBER 2015
ADC128S052, ADC128S052-Q1 8-Channel, 200 kSPS to 500 kSPS, 12-Bit A/D Converter
1 Features
•1 Qualified for Automotive Applications
• AEC-Q100 Qualified With the Following Results:
– Device Temperature Grade 1: –40°C to
+125°C Ambient Operating Temperature
Range
• Eight Input Channels
• Variable Power Management
• Independent Analog and Digital Supplies
• Compatible With SPI™, QSPI™, MICROWIRE,
and DSP
• Packaged in 16-Pin TSSOP
• Conversion Rate 200 kSPS to 500 kSPS
• DNL (V_A = V_D = 5 V) + 1.3 or −0.9 LSB
(Maximum)
• INL (V_A = V_D = 5 V) ±1 LSB (Maximum)
• Power Consumption
– 3-V Supply 1.6 mW (Typical)
– 5-V Supply 8.7 mW (Typical)
2 Applications
• Automotive Navigation
• Portable Systems
• Medical Instruments
• Mobile Communications
• Instrumentation and Control Systems
3 Description
The ADC128S052x device is a low-power, eight-
channel CMOS 12-bit analog-to-digital converter
specified for conversion throughput rates of
200 kSPS to 500 kSPS. The converter is based on a
successive-approximation register architecture with
an internal track-and-hold circuit. It can be configured
to accept up to eight input signals at inputs IN0
through IN7.
The output serial data is straight binary and is
compatible with several standards, such as SPI,
QSPI, MICROWIRE, and many common DSP serial
interfaces.
The ADC128S052x may be operated with
independent analog and digital supplies. The analog
supply (V_A) can range from 2.7 V to 5.25 V, and the
digital supply (V_D) can range from 2.7 V to V_A.
Normal power consumption using a 3-V or
5-V supply is 1.6 mW and 8.7 mW, respectively. The
power-down feature reduces the power consumption
to 0.06 µW using a 3-V supply and 0.25 µW using a
5-V supply.
The ADC128S052x is packaged in a 16-pin TSSOP
package. The ADC128S052 is ensured over the
extended industrial temperature range of −40°C to
+105°C while the ADC128S052-Q1 is ensured to an
AECQ100 Grade-1 automotive temperature range of
−40°C to +125°C.
Device Information⁽¹⁾
PART NUMBER
PACKAGE
BODY SIZE (NOM)
ADC128S052,
ADC128S052-Q1
TSSOP (16)
4.40 mm × 5.00 mm
(1) For all available packages, see the orderable addendum at
the end of the data sheet.
Simplified Schematic
VA is used as the Reference
“Analog” Supply Rail
for the ADC
VD can be set independently
of VA
“Digital” Supply Rail
VIN7
VIN3
VIN0
VA
VD
IN7
IN6
IN5
IN4
SAR
ADC
IN3
4-wire SPI
IN2
IN1
IN0
AGND
DGND
MCU
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.