Overview
The AD7694ARMZ is a 16-bit, 250 kSPS PulSAR (Successive Approximation Register) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device operates from a single power supply, VDD, which can range from 2.7 V to 5.25 V. It features a low-power, high-speed ADC with no missing codes (B grade), an internal conversion clock, and a serial interface compatible with SPI, QSPI, MICROWIRE, and DSP protocols. The AD7694ARMZ is housed in an 8-lead MSOP package and is specified to operate over a temperature range of –40°C to +85°C.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Resolution | 16-bit | |
| Sampling Rate | 250 kSPS | |
| Power Supply | 2.7 V to 5.25 V | V |
| Supply Current | 540 μA at 2.7 V/100 kSPS, 800 μA at 5 V/100 kSPS | μA |
| Standby Current | 1 nA | nA |
| Package Type | 8-Lead MSOP | |
| Operating Temperature Range | –40°C to +85°C | °C |
| Interface Compatibility | SPI, QSPI, MICROWIRE, DSP |
Key Features
- Low power consumption with supply current scaling linearly with throughput.
- Internal conversion clock and track-and-hold circuit with very short aperture delay.
- No pipeline delay or latency, making it suitable for multiplexed channel applications.
- High-speed operation with no missing codes (B grade).
- Compact 8-lead MSOP package.
- Wide operating temperature range from –40°C to +85°C.
Applications
- Battery-powered equipment.
- Data acquisition systems.
- Instrumentation.
- Medical instruments.
- Process control systems.
Q & A
- What is the resolution of the AD7694ARMZ ADC?
The AD7694ARMZ has a 16-bit resolution.
- What is the maximum sampling rate of the AD7694ARMZ?
The AD7694ARMZ can sample up to 250,000 samples per second (250 kSPS).
- What is the power supply range for the AD7694ARMZ?
The AD7694ARMZ operates from a single power supply between 2.7 V and 5.25 V.
- What is the typical supply current at 100 kSPS for the AD7694ARMZ?
At 100 kSPS, the typical supply current is 540 μA at 2.7 V and 800 μA at 5 V.
- What is the standby current of the AD7694ARMZ?
The standby current is 1 nA.
- In what package is the AD7694ARMZ available?
The AD7694ARMZ is housed in an 8-lead MSOP package.
- What is the operating temperature range for the AD7694ARMZ?
The operating temperature range is from –40°C to +85°C.
- Is the AD7694ARMZ compatible with any specific serial interfaces?
Yes, it is compatible with SPI, QSPI, MICROWIRE, and DSP serial interfaces.
- What are some typical applications for the AD7694ARMZ?
Typical applications include battery-powered equipment, data acquisition systems, instrumentation, medical instruments, and process control systems.
- Does the AD7694ARMZ have any pipeline delay or latency?
No, the AD7694ARMZ does not exhibit any pipeline delay or latency, making it suitable for multiplexed channel applications.
