SGM5200
12-Bit, 1MSPS, 16 Channels,
Single-Ended, Serial Interface ADC
www.sg-micro.com
GENERAL DESCRIPTION
The SGM5200 is a 12-bit multichannel inputs
analog-to-digital converter (ADC). The device includes
a capacitor based SAR ADC with inherent sample and
hold circuit.
The SGM5200 accepts a wide power supply range
from 2.7V to 5.25V. Very low power consumption
makes the device suitable for battery-powered or
isolated power supply applications.
A wide 1.7V to 5.25V digital I/O power supply range
facilitates a glueless interface with the most commonly
used digital hosts. The serial interface is controlled by
nCS and SCLK for easy connection with
microprocessors and DSP.
The input signal is sampled with the falling edge of nCS.
It uses SCLK for conversion, serial data output and
reading serial data in. The device allows auto
sequencing of preselected channels or manual selection
of a channel for the next conversion cycle.
There are two software selectable input ranges (0V to
VREF and 0V to 2 × VREF), individually configurable GPIOs
(four in case of the TSSOP package and one in TQFN
package) and two programmable alarm thresholds per
channel. These features make the device suitable for
most data acquisition applications.
The SGM5200 offers an attractive power-down feature.
This is extremely useful for power saving when the
device is operated at lower conversion speeds.
The SGM5200 is available in Green TSSOP-38 and
TQFN-5×5-32L packages. It operates over an ambient
temperature range -40℃to +125℃.
FEATURES
●1MHz Sample Rate
●12-Bit Resolution
●16 Channels
●Zero Latency
●20MHz Serial Interface
●Analog Power Supply Range: 2.7V to 5.25V
●Digital I/O Power Supply Range: 1.7V to 5.25V
●Two Software Selectable Unipolar, Input Ranges
Range 1: 0V to VREF
Range 2: 0V to 2 × VREF
●Auto and Manual Modes for Channel Selection
●Two Programmable Alarm Thresholds per
Channel
●Four Individually Configurable GPIOs in TSSOP
Package and One GPIO in TQFN Package
●Typical Power Dissipation:
24mW (VA= 5V, VBD = 3V) at 1MSPS
●Power-Down Current: 1.4μA (TYP)
●Input Bandwidth: 45MHz (TYP) at -3dB
●Available in Green TSSOP-38 and TQFN-5×5-32L
Packages
APPLICATIONS
PLC/IPC
Optical Line Card Monitoring
Medical Instrumentation
Digital Power Supplies
Multichannel, General-Purpose Signal Monitoring
High-Speed Data Acquisition Systems
High-Speed Closed-Loop Systems
