●Product Details
●The AD7739 is a high precision, high throughput analog front end. True 16-bit peak-to-peak resolution is achievable with a total conversion time of 250 µs (4 kHz channel switching) making it ideally suitable for high resolution multiplexing applications.
●The AD7739 is based on a sigma-delta architecture and features up to 24 bits of no missing codes performance. The part can be configured via a simple digital interface, which allows users to balance the noise performance against data throughput up to a 15.4 kHz conversion rate. The analog front end features 8 single-ended or 4 fully differential input channels with unipolar or bipolar 625 mV, 1.25 V and 2.5 V input ranges and accepts a common mode input voltage from 200 mV above AGND to AVDD-300 mV. The ADC supports per channel system calibration options.
●The digital serial interface can be configured for three-wire operation and is compatible with microcontrollers and digital signal processors. All interface inputs are Schmitt triggered.
●The part is specified for operation over the extended industrial temperature range of -40ºC to +105ºC and is available in 24-lead TSSOP package.
●### Features and Benefits
● High resolution ADC
●\- 24 bits no missing codes
●\- ±0.0015% Nonlinearity
● Optimized for Fast Channel Switching
●\- 18-Bits p-p Resolution (21 Bits Effective) at 500 Hz
●\- 16-Bits p-p Resolution (19 Bits Effective) at 4 kHz
●\- On-Chip Per Channel System Calibration
● Configurable Inputs 8 Single-Ended or 4 Fully Differential
● Input Ranges
●\- +625 mV, ±625 mV, +1.25 V, ±1.25 V, +2.5 V, ±2.5 V
● 3-Wire Serial Interface SPI®, QSPI™, MICROWIRE™ and DSP Compatible
●\- Schmitt Trigger on Logic Inputs
● Single-Supply Operation
●\- 5 V Analog Supply
●\- 3 V or 5 V Digital Supply
● Package: 24-Lead TSSOP
Part 3D Model
