Overview
The AD7788ARM is a 16-bit, low power, sigma-delta analog-to-digital converter (ADC) manufactured by Analog Devices Inc. This device is designed for low frequency measurement applications and is known for its high accuracy and low noise performance. The AD7788ARM operates from a single power supply ranging from 2.5 V to 5.25 V and is housed in a 10-lead Mini Small Outline Package (MSOP).
Key Specifications
| Specification | Value |
|---|---|
| Resolution | 16 bits |
| Number of Inputs | 1 differential input |
| Sampling Rate | 16.6 samples per second |
| Power Supply | 2.5 V to 5.25 V |
| Power Consumption | 75 µA maximum (normal), 1 µA maximum (power-down) |
| Operating Temperature | -40°C to +85°C |
| Package Type | 10-MSOP, 10-TFSOP |
| Data Interface | SPI, QSPI, MICROWIRE, DSP-compatible |
| RMS Noise | 1.5 µV |
| Integral Nonlinearity | 3.5 ppm typical |
Key Features
- Low power consumption with a maximum of 75 µA in normal operation and 1 µA in power-down mode.
- High resolution of 16 bits with low noise performance.
- Simultaneous 50 Hz and 60 Hz rejection.
- Internal clock oscillator, eliminating the need for an external clock source.
- VDD monitor channel for monitoring the power supply voltage.
- 3-wire serial interface compatible with SPI, QSPI, MICROWIRE, and DSP.
- Schmitt trigger on SCLK for improved noise immunity.
Applications
- Smart transmitters
- Battery applications
- Portable instrumentation
- Sensor measurement
- Temperature measurement
- Pressure measurement
- Weigh scales
- 4 to 20 mA loops
Q & A
- What is the resolution of the AD7788ARM ADC?
The AD7788ARM has a resolution of 16 bits.
- How many differential inputs does the AD7788ARM have?
The AD7788ARM has one differential input.
- What is the sampling rate of the AD7788ARM?
The sampling rate is 16.6 samples per second.
- What is the power supply range for the AD7788ARM?
The power supply range is from 2.5 V to 5.25 V.
- What is the typical power consumption of the AD7788ARM in normal operation?
The typical power consumption is 75 µA maximum in normal operation.
- What is the operating temperature range of the AD7788ARM?
The operating temperature range is -40°C to +85°C.
- What type of package does the AD7788ARM come in?
The AD7788ARM comes in a 10-MSOP or 10-TFSOP package.
- What data interfaces are supported by the AD7788ARM?
The AD7788ARM supports SPI, QSPI, MICROWIRE, and DSP-compatible interfaces.
- Does the AD7788ARM have an internal clock oscillator?
Yes, the AD7788ARM has an internal clock oscillator.
- What is the RMS noise level of the AD7788ARM?
The RMS noise level is 1.5 µV.
