Overview
The AD7685CRMZRL7 is a 16-bit, successive approximation analog-to-digital converter (ADC) produced by Analog Devices Inc. This component is part of the PulSAR® family and is known for its high resolution, low power consumption, and versatile interface. It operates from a single power supply ranging from 2.3 V to 5.5 V and is compatible with various digital logic families (1.8 V to 5 V). The AD7685CRMZRL7 is housed in a compact 10-lead MSOP package, making it suitable for applications where space is limited.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Throughput | Up to 250 kSPS |
| Integral Nonlinearity (INL) | ±0.6 LSB typical, ±2 LSB maximum |
| Signal-to-Noise and Distortion Ratio (SINAD) | 93.5 dB at 20 kHz |
| Total Harmonic Distortion (THD) | −110 dB at 20 kHz |
| Analog Input Range | 0 V to VREF (up to VDD) |
| Power Supply | 2.3 V to 5.5 V |
| Logic Interface | 1.8 V to 5 V |
| Package Type | 10-Lead MSOP |
| Operating Temperature | −40°C to +85°C |
| Power Dissipation | 1.4 µW at 2.5 V/100 SPS, 1.35 mW at 2.5 V/100 kSPS, 4 mW at 5 V/100 kSPS |
| Standby Current | 1 nA |
Key Features
- No missing codes and high resolution of 16 bits.
- Low power consumption with power dissipation scaling linearly with throughput.
- Internal conversion clock and track-and-hold circuit with short aperture delay.
- Versatile serial interface compatible with SPI, QSPI, MICROWIRE, and DSP, allowing daisy-chaining of multiple ADCs.
- Optional BUSY indicator and compatibility with various digital logic families.
- Compact 10-lead MSOP and LFCSP packages for space-saving designs.
- Pin-for-pin compatibility with other PulSAR® ADCs like AD7686, AD7687, and AD7688.
Applications
The AD7685CRMZRL7 is ideal for multiple multiplexed channel applications due to its on-chip track-and-hold and lack of pipeline delay. It is suitable for a variety of applications including industrial control systems, medical devices, and data acquisition systems where high accuracy and low power consumption are critical.
Q & A
- What is the resolution of the AD7685CRMZRL7? The AD7685CRMZRL7 has a resolution of 16 bits.
- What is the maximum throughput of the AD7685CRMZRL7? The maximum throughput is up to 250 kSPS.
- What is the typical INL of the AD7685CRMZRL7? The typical Integral Nonlinearity (INL) is ±0.6 LSB.
- What is the SINAD of the AD7685CRMZRL7 at 20 kHz? The SINAD is 93.5 dB at 20 kHz.
- What is the power supply range for the AD7685CRMZRL7? The power supply range is from 2.3 V to 5.5 V.
- What types of packages are available for the AD7685CRMZRL7? It is available in 10-lead MSOP and LFCSP packages.
- Is the AD7685CRMZRL7 compatible with different digital logic families? Yes, it is compatible with 1.8 V to 5 V digital logic families.
- What is the operating temperature range of the AD7685CRMZRL7? The operating temperature range is from −40°C to +85°C.
- Can multiple AD7685CRMZRL7 ADCs be daisy-chained? Yes, multiple ADCs can be daisy-chained using the serial interface.
- What is the standby current of the AD7685CRMZRL7? The standby current is 1 nA.
