ADC Single SAR 1Msps 18-bit Parallel 64-Pin VQFN EP T/R, ADS8284IRGCT, Texas Instruments

The ADS8284 is a high-performance analog system-on-chip (SoC) device with an 18-bit, 1-MSPS A/D converter, 4-V internal reference, an on-chip ADC driver (OPA), and a 4-channel differential multiplexer. The channel count of the multiplexer and auto/manual scan modes of the device are user selectable. The ADC driver is designed to leverage the very high noise performance of the differential ADC at optimum power usage levels. The ADS8284 outputs a buffered reference signal for level shifting of a ±4-V bipolar signal with an external resistance divider. A Vref/2 output signal is available to set the common-mode of a signal conditioning circuit. The device also includes an 18-/16-/8-bit parallel interface. The ADS8284 is available in a 9 mm × 9 mm, 64-pin QFN package and is characterized from -40°C to 85°C. For all available packages, see the orderable addendum at the end of the data sheet.

1.0-MHz Sample Rate, Zero Latency at Full Speed

18-Bit Resolution

Supports Pseudo-Bipolar Differential Input Range:
-4 V to +4 V with 2-V Common-Mode

Built-In Four Channel, Differential Ended Multiplexer;
with Channel Count Selection and Auto/Manual Mode

On-Board Differential ADC Driver (OPA)

Buffered Reference Output to Level Shift Bipolar
±4-V Input with External Resistance Divider

Reference/2 Output to Set Common-Mode for External
Signal Conditioner

18-/16-/8-Bit Parallel Interface

SNR: 98.4dB Typ at 2-kHz I/P

THD: –119dB Typ at 2-kHz I/P

Power Dissipation: 331.25 mW at 1 MSPS Including
ADC Driver

Internal Reference

Internal Reference Buffer

64-Pin QFN Package

Характеристики

Volt_supply_source	Single
Number_of_analog_inputs	4
Sampling_rate	1 Msps
Volt_reference	External, Internal
Digital_supply_support	No
Architecture	SAR
Resolution	18 Bit
Typical_power_dissipation	331.25 mW
Differential_nonlinearity	-1, 1.5 LSB
Signal_to_noise_ratio	98.4 dB
Input_type	Voltage
Input_signal_type	Differential
Input_volt	±4 V
Бренд	Texas Instruments
Msl_level	3
Country_of_origin	United States
Eccn	EAR99
Htsn	8542390001
Lead_finish	Gold
Max_processing_temp	260
Mounting	Surface Mount
Operating_temp	-40 to 85 °C
Pin_count	64
Product_dimensions	9 x 9 x 0.88 mm
Schedule_b	8542330000
Specifications	http://www.ti.com/general/docs/lit/getliterature.tsp?genericPartNumber=ADS8284&&fileType=pdf
Supplier_package	VQFN EP
Polarity_of_input_volt	Bipolar
Operating_supply_volt	4.75, 5 V, 5.25
Number_of_adcs	1
Digital_interface_type	Parallel

SKU: ADS8284IRGCT

Description