Overview
The ADR423ARMZ-REEL7 is an ultraprecision, low noise voltage reference integrated circuit (IC) manufactured by Analog Devices Inc. This device is part of the ADR42x series, which features second-generation eXtra implanted junction FET (XFET) technology. The ADR423ARMZ-REEL7 is known for its high accuracy, low noise, and excellent long-term stability, making it ideal for precision conversion applications.
Key Specifications
| Parameter | Symbol | Conditions | Min | Typ | Max | Unit |
|---|---|---|---|---|---|---|
| Output Voltage | VOUT | A Grade | 2.996 | 3.000 | 3.004 | V |
| Output Voltage | VOUT | B Grade | 2.9985 | 3.000 | 3.0015 | V |
| Initial Accuracy | VOUTERR | A Grade | -4 | - | 4 | mV |
| Initial Accuracy | VOUTERR | B Grade | -1.5 | - | 1.5 | mV |
| Temperature Coefficient | TCVOUT | -40°C to +125°C | 2 | - | 10 | ppm/°C |
| Supply Voltage Headroom | VIN - VOUT | - | - | 2 | V | |
| Line Regulation | ΔVOUT/ΔVIN | VIN = 5 V to 18 V, -40°C to +125°C | 10 | - | 35 | ppm/V |
| Load Regulation | ΔVOUT/ΔIL | IL = 0 mA to 10 mA, -40°C to +125°C | 70 | - | - | ppm/mA |
| Quiescent Current | IIN | No load, -40°C to +125°C | 390 | 500 | 600 | µA |
| Voltage Noise (0.1 Hz to 10 Hz) | eN p-p | - | - | 2.0 | µV p-p | |
| Voltage Noise Density at 1 kHz | eN | - | - | 80 | nV/√Hz | |
| Turn-On Settling Time | tR | - | - | 10 | µs | |
| Long-Term Stability (1000 hours) | ΔVOUT | - | - | 50 | ppm | |
| Output Voltage Hysteresis | VOUT_HYS | - | - | 40 | ppm | |
| Ripple Rejection Ratio at 1 kHz | RRR | - | - | -75 | dB | |
| Short Circuit to GND | ISC | - | - | 27 | mA |
Key Features
- Ultraprecision Voltage Reference: The ADR423ARMZ-REEL7 features a highly accurate output voltage with minimal drift over temperature and time.
- Low Noise: It has low voltage noise, with 2.0 μV p-p from 0.1 Hz to 10 Hz and 80 nV/√Hz at 1 kHz.
- XFET Technology: Utilizes patented XFET technology, which offers superior accuracy and thermal hysteresis compared to band gap references.
- Adjustable Output Voltage: The trim terminal can adjust the output voltage over a ±0.5% range without compromising other performance parameters.
- Low Power and Supply Headroom: Operates at lower power and lower supply headroom than buried Zener references).
- Extended Temperature Range: Specified over the extended industrial temperature range of -40°C to +125°C).
- Compact Packaging: Available in 8-lead MSOP and SOIC packages, with the MSOP being 30% smaller than the SOIC).
Applications
- Precision Conversion Applications: Ideal for applications requiring high precision, such as analog-to-digital converters (ADCs) and digital-to-analog converters (DACs)).
- Optical Networks: Used in optical network equipment due to its stable and accurate characteristics).
- Medical Equipment: Suitable for medical devices that require precise voltage references).
Q & A
- What is the output voltage of the ADR423ARMZ-REEL7?
The output voltage of the ADR423ARMZ-REEL7 is 3.00 V, with an initial accuracy of ±4 mV for the A grade and ±1.5 mV for the B grade).
- What is the temperature coefficient of the ADR423ARMZ-REEL7?
The temperature coefficient is 2 ppm/°C to 10 ppm/°C over the -40°C to +125°C range).
- What is the noise performance of the ADR423ARMZ-REEL7?
The device has a voltage noise of 2.0 μV p-p from 0.1 Hz to 10 Hz and 80 nV/√Hz at 1 kHz).
- What is the quiescent current of the ADR423ARMZ-REEL7?
The quiescent current is 390 µA to 600 µA over the -40°C to +125°C temperature range).
- What are the available packages for the ADR423ARMZ-REEL7?
The device is available in 8-lead MSOP and 8-lead SOIC packages).
- What is the operating temperature range of the ADR423ARMZ-REEL7?
The operating temperature range is -40°C to +125°C).
- How does the XFET technology benefit the ADR423ARMZ-REEL7?
The XFET technology provides superior accuracy, lower thermal hysteresis, and lower power consumption compared to traditional band gap references).
- Can the output voltage of the ADR423ARMZ-REEL7 be adjusted?
Yes, the output voltage can be adjusted over a ±0.5% range using the trim terminal without compromising other performance parameters).
- What are some typical applications of the ADR423ARMZ-REEL7?
Typical applications include precision conversion in ADCs and DACs, optical networks, and medical equipment).
- What is the ripple rejection ratio of the ADR423ARMZ-REEL7 at 1 kHz?
The ripple rejection ratio at 1 kHz is -75 dB).
