AD7384-4
Pseudo Differential Input, Quad, 4 MSPS Simultaneous Sampling, 14-Bit, SAR ADC
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Overview
Features and Benefits
- 16-bit and 14-bit ADC family
- Quad simultaneous sampling
- Pseudo differential analog inputs
- High throughput rate: 4 MSPS
- SNR: 86.7 dB (typical) at VREF = 3.3 V (AD7383-4)
- On-chip oversampling function
- SNR: 91 dB (typical) with OSR = 8×, RES = 1
- 2-bit resolution boost
- Out of range indicator (ALERT)
- INL: 3.8 LSBs (maximum)
- High speed serial interface
- Temperature range: −40°C to +125°C
- 24-lead, 4 mm × 4 mm LFCSP
Product Details
The 16-bit AD7383-4 and 14-bit AD7384-4 are pin-compatible, quad, simultaneous sampling, high speed, successive approximation register (SAR), analog-to-digital converters (ADCs) operating from a 3.0 V to 3.3 V power supply with throughput rates up to 4 MSPS. The analog input type is a pseudo differential and is sampled and converted on the falling edge of CS.
The AD7383-4/AD7384-4 have on-chip oversampling blocks to improve dynamic range and reduce noise at lower bandwidths. The oversampling boosts up to two bits of added resolution. A buffered internal 2.5 V reference is included. Alternatively, an external reference up to 3.3 V can be used.
The conversion process and data acquisition use standard control inputs allowing easy interfacing to microprocessors or digital signal processors (DSPs). The conversion result can clock out simultaneously via 4-wire mode for faster throughput or via 1-wire serial mode when slower throughput is allowed. The devices are compatible with 1.8 V, 2.5 V, and 3.3 V interfaces using the separate logic supply.
The AD7383-4/AD7384-4 are available in a 24-lead, 4 mm × 4 mm LFCSP and a temperature range of −40°C to +125°C.
APPLICATIONS
- Motor control position feedback
- Motor control current sense
- Data acquisition systems
- Erbium-doped fiber amplifier (EDFA) applications
- Inphase and quadrature demodulation
PRODUCT HIGHLIGHTS
- Quad simultaneous sampling and conversion.
- Pin-compatible product family.
- High 4 MSPS throughput rate.
- Space-saving 4 mm × 4 mm LFCSP.
- Integrated oversampling block to increase dynamic range, reduce noise, and reduce SCLK speed requirements.
- Pseudo differential analog inputs.
- Small sampling capacitor reduces amplifier drive burden.
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Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
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| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| AD7384-4BCPZ | Material Declaration | Reliability Data | 24-Lead LFCSP (4mm x 4mm x 0.55mm) | |
| AD7384-4BCPZ-RL | Material Declaration | Reliability Data | 24-Lead LFCSP (4mm x 4mm x 0.55mm) | |
| AD7384-4BCPZ-RL7 | Material Declaration | Reliability Data | 24-Lead LFCSP (4mm x 4mm x 0.55mm) | |
| Wafer Fabrication Data |
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Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.