ADS7844N/1K

Number of A/D Converters:	1
Base Part Number:	ADS7844
Supplier Device Package:	20-SSOP
Package / Case:	20-SSOP (0.209", 5.30mm Width)
Operating Temperature:	-40°C ~ 85°C
Features:	--
Voltage - Supply, Digital:	2.7 V ~ 3.6 V, 5V
Voltage - Supply, Analog:	2.7 V ~ 3.6 V, 5V
Reference Type:	External
Architecture:	SAR
Series:	--
Ratio - S/H:ADC:	1:1
Configuration:	MUX-S/H-ADC
Data Interface:	SPI
Input Type:	Differential, Single Ended
Number of Inputs:	4, 8
Sampling Rate (Per Second):	200k
Number of Bits:	12
Part Status:	Active
Packaging:	Tape & Reel (TR)

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ADS7844N/1K: Data Acquisition - Analog to Digital Converters (ADC)

The ADS7844N is a 12-bit, 1 megasample-per-second (MSPS) analog-to-digital converter (ADC). It is part of a family of ADCs that uses a 6-transistor (6T) successive approximation register (SAR) architecture. The ADS7844N is ideal for applications requiring sampling rates up to 1 megasamples per second (MSPS) and is suitable for a variety of applications, including battery-powered and portable products, motor control, data acquisition, medical imaging, and instrumentation. The ADS7844N\'s low power consumption, wide dynamic range and high speed combineto create an excellent choice for ADCs that minimize system size and power consumption while maximizing performance. Its wide input range and low power consumption enable it to be used in many diverse applications, such as battery-powered and portable products, motor control, data acquisition, medical imaging, and instrumentation. The ADS7844N supports output data rates up to 54 MSPS, allowing for a 2.4 μs conversion time that makes it suitable for fast-speed, real-time control applications. Its low power consumption also enables operation from a single voltage supply. Additionally, the ADS7844N offers excellent digital noise and dynamic performance, reducing aliasing errors due to sampling rate, noise performance, and high order harmonics distortion. The device features a flexible, 8-channel, multi-range input that allows the user to select between two gains. The two gain ranges selectable feature a maximum input range of ± 10 mV with full-scale input codes that range from ± 1250mV to ±20V. It also features a temperature range of -40°C to 125°C, excellent EMC performance, a built-in zero-crossing comparative capacitor, and a noise-reducing dynamic range control. The ADS7844N\'s 6T SAR architecture enables it to provide high-speed, low-power conversion with minimal circuit complexity. With its internal bandgap reference and linearity correction, the ADS7844N achieves excellent performance and is particularly well-suited for use in low power applications. The on-chip linearity correction circuitry compensates for process variability based on a user-programmed calibration value. In summary, the ADS7844N is a high-resolution, low-power, high-speed ADC. It is an ideal choice for applications requiring high resolution, low power and a wide dynamic range. Its 6T SAR architecture provides excellent circuit complexity and performance, while the integrated bandgap reference ensures accurate and linear measurements with minimum non-linearity. Additionally, the device features a flexible, 8-channel, multi-range input and a wide temperature range, making it suitable for a variety of applications.

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