2Msps Differential Input ADC - Analog Devices
Description
LTC2321-16
FEATURES
Dual, 16-Bit, 2Msps Differential Input ADC with Wide
Input Common Mode Range DESCRIPTION
nn 2Msps Throughput Rate nn ±4LSB INL (Typ) nn Guaranteed 16-Bit, No Missing Codes nn 8VP-P Differential Inputs with Wide Input Common
Mode Range nn 81dB SNR (Typ) at fIN = 500kHz nn –90dB THD (Typ) at fIN = 500kHz nn No Cycle Latency nn Guaranteed Operation to 125°C nn Single 3.
3V or 5V Supply nn Low Drift (20ppm/°C Max) 2.
048V or 4.
096V Internal
Reference nn 1.
8V to 2.
5V I/O Voltages nn CMOS or LVDS SPI-Compatible Serial I/O nn Power Dissipation 31mW/Ch (Typ) nn Small 28-Lead (4mm × 5mm) QFN Package
APPLICATIONS
nn High Speed Data Acquisition Systems nn Communications nn Remote Data Acquisition nn Imaging nn Optical Networking nn Automotive nn Multiphase Motor Control
The LTC®2321-16 is a low noise, high speed dual 16-bit successive approximation register (SAR) ADC with differential inputs and wide input common mode range.
Operating from a single 3.
3V or 5V supply, the LTC232116 has an 8VP-P differential input range, making it ideal for applications which require a wide dynamic range with high common mode rejection.
The LTC2321-16 achieves ±4LSB INL typical, no missing codes at 16 bits and 81dB SNR.
The LTC2321-16 has an onboard low drift (20ppm/°C max) 2.
048V or 4.
096V temperature-compensated reference.
The LTC2321-16 also has a high speed SPIcompatible serial interface that supports CMOS or LVDS.
The fast 2Msps per channel throughput with no cycle latency makes the LTC2321-16 ideally suited for a wide variety of high speed applications.
The LTC2321-16 dissipates only 31mW per channel and offers nap and sleep modes to reduce the power consumption to 5μW for further power savings during inactive periods.
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TYPICAL APPLICATION
3.
3V OR 5V
DIFFERENTIAL INPUTS NO CONFIGURATION REQUIRED
IN+, IN–
INSTRUMENTATION
DIFFERENTIAL
25Ω
0V BIPOLAR
0V UNIPOLAR
25Ω
0V 0V
10µF
...
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