AD7738BRUZ

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AD7738BRUZ

+Nomenclature

IC ADC 24BIT SIGMA-DELTA 28TSSOP

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Spécifications

Attribut Valeur
Package Tube
ProductStatus Active
NumberofBits 24
SamplingRate(PerSecond) 15.4k
NumberofInputs 4, 8
InputType Differential, Single Ended
DataInterface SPI, DSP
Configuration MUX-ADC
NumberofA/DConverters 1
Architecture Sigma-Delta
ReferenceType External
Voltage-SupplyAnalog 5V
Voltage-SupplyDigital 2.7V ~ 3.6V, 5V
Features True Bipolar
OperatingTemperature -40°C ~ 105°C
Package/Case 28-TSSOP (0.173, 4.40mm Width)
SupplierDevicePackage 28-TSSOP

Présentation

Description

The AD7738BRUZ is a high-precision, 24-bit sigma-delta (Σ-Δ) analog-to-digital converter (ADC) from Analog Devices, designed for low-frequency measurement applications. It features 8 differential or 16 single-ended input channels, an on-chip programmable gain amplifier (PGA), and a flexible digital filter for noise reduction.
Key specifications:
- Resolution: 24 bits (no missing codes).
- Input Range: ±10 mV to ±10 V (programmable).
- Data Rate: Up to 1.2 kHz (with simultaneous 50/60 Hz rejection).
- Interface: SPI-compatible serial interface.
- Power Supply: Single (+5 V) or dual (±5 V) operation.
Ideal for industrial process control, weigh scales, and instrumentation, the AD7738BRUZ offers high accuracy, low noise, and robust performance in harsh environments. Its integrated features reduce external component requirements, simplifying system design.
Package: 28-lead TSSOP (RUZ).
For detailed specs, refer to the datasheet.

Equivalent

The AD7738BRUZ is a high-precision, 24-bit sigma-delta ADC. Equivalent alternatives include:
- AD7730: Similar 24-bit ADC with on-chip PGA.
- AD7734: 24-bit ADC with higher channel count.
- LTC2440: 24-bit delta-sigma ADC from Linear Tech.
- ADS1256: 24-bit ADC from Texas Instruments.
- MAX1402: 24-bit ADC with PGA from Maxim.
These offer comparable resolution and features for precision measurement applications. Check datasheets for exact specs.

Features

The AD7738BRUZ is a high-precision, 24-bit sigma-delta ADC with key features:
- Resolution: 24-bit, no missing codes.
- Channels: 8 pseudo-differential or 4 fully differential analog inputs.
- Throughput: Up to 6.5 kSPS (with internal filter bypass).
- Input Range: Programmable ±10V, ±5V, ±2.5V, or 0–20mA current loop.
- Low Noise: 12.5nV/√Hz input-referred noise.
- On-Chip Features: PGA (gain 1–128), calibration, and digital filtering.
- Interface: SPI-compatible serial interface.
- Power Supply: Single +5V or dual ±5V operation.
- Package: 28-lead TSSOP.
Ideal for industrial, weigh-scale, and process control applications requiring high accuracy.

Application

The AD7738BRUZ is a high-precision, 24-bit sigma-delta ADC designed for low-frequency measurement applications. Key application areas include:
- Industrial Process Control: Weigh scales, pressure sensors, and temperature monitoring.
- Medical Equipment: Patient monitoring systems and portable medical devices.
- Automotive Systems: Sensor signal conditioning for pressure, load, and torque.
- Test & Measurement: High-accuracy data acquisition systems.
- Energy Monitoring: Smart meters and power quality analysis.
Its low noise, high resolution, and flexible input ranges make it ideal for demanding analog signal processing tasks.

Package

The AD7738BRUZ comes in a TSSOP-28 package. This is a 28-lead, thin shrink small outline package with a compact footprint, suitable for space-constrained applications. It features a 0.65 mm lead pitch and is designed for surface-mount assembly. The TSSOP package offers good thermal and electrical performance for precision analog applications.

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