ADS7844N

The ADS7844N is a 12-bit, 4-channel successive approximation (SAR) analog-to-digital converter (ADC) from Texas Instruments. It features a serial interface (SPI-compatible) for easy microcontroller integration and operates at up to 200 kHz sampling rates.
Key features:
- 4 single-ended or 2 differential inputs
- Low power consumption (750 µA at 200 kHz, 3 µA in standby)
- On-chip sample-and-hold
- 2.7V–5V supply range
Commonly used in touch panels, battery monitoring, and industrial control systems, the ADS7844N provides reliable, low-power ADC conversion with a compact footprint. Its high accuracy (±1 LSB INL/DNL) and flexible input configuration make it suitable for precision measurement applications.
For detailed specs, refer to the datasheet (TI Document: SBAS081).

The ADS7844N is a 12-bit, 4-channel successive approximation (SAR) ADC with a serial interface. Key features:
- Resolution: 12-bit
- Channels: 4 single-ended or 2 differential inputs
- Interface: SPI-compatible serial
- Supply Voltage: 2.7V to 5V
- Throughput: Up to 200 kSPS
- Low Power: 750 µA (active), 1 µA (power-down)
- On-Chip Reference: Yes (2.5V)
- Input Range: 0V to VREF
- Package: 16-pin SOIC
Ideal for battery-powered and space-constrained applications like data acquisition and portable instrumentation.

The ADS7844N is a 16-pin (DIP/SOIC) 12-bit successive approximation ADC with a 4-channel multiplexer. Key functions include:
- Pins 1-4 (IN0-IN3): Analog input channels.
- Pins 5-8 (VREF, AGND, DGND, VCC): Reference voltage, analog/digital grounds, and power supply.
- Pins 9-12 (CS, DIN, DOUT, SCLK): SPI-compatible serial interface for control and data output.
- Pins 13-14 (BUSY, PENIRQ): Status outputs (conversion busy, pen interrupt).
- Pins 15-16 (DCLK, +3.3V): Optional clock input and power (varies by model).
It operates at 2.7V–5V, supports touchscreen interfaces, and offers low power consumption. Typical applications include embedded systems and portable devices.

The ADS7844N is manufactured by Burr-Brown, a company known for producing high-performance analog and mixed-signal semiconductors. Burr-Brown was acquired by Texas Instruments (TI) in 2000 and is now part of TI's product portfolio.
The ADS7844N is a 12-bit, 4-channel, serial-output analog-to-digital converter (ADC) designed for precision measurement applications. Burr-Brown (now TI) specializes in data converters, amplifiers, and other analog ICs, serving industries like industrial, medical, and instrumentation.
Key points:
- Manufacturer: Burr-Brown (now Texas Instruments)
- Type of company: Semiconductor (analog/mixed-signal ICs)
- Product category: Precision ADCs

The ADS7844N is a 12-bit, 4-channel successive approximation ADC (analog-to-digital converter) with a serial interface. Its key application areas include:
- Touchscreen Controllers – Used in resistive touch panels for precise position sensing.
- Industrial Control Systems – Monitors sensors and analog signals in automation.
- Medical Devices – Measures low-voltage biomedical signals.
- Portable Instruments – Integrates into handheld meters and data loggers.
- Automotive Electronics – Interfaces with sensors in dashboards and control modules.
Its low power consumption, small footprint, and SPI-compatible interface make it ideal for embedded systems requiring multi-channel ADC functionality.

The ADS7844N is a 12-bit analog-to-digital converter (ADC) from Texas Instruments. It comes in a 20-pin SSOP (Shrink Small Outline Package). This package type is compact, surface-mount, and suitable for space-constrained applications. The SSOP-20 has a body width of 5.3mm and a lead pitch of 0.65mm, making it ideal for high-density PCB designs.