Overview
The AD7626BCPZ is a 16-bit, 10 MSPS (Mega Samples Per Second) analog-to-digital converter (ADC) produced by Analog Devices Inc. This device utilizes a charge redistribution successive approximation register (SAR) architecture, which provides unmatched performance in terms of noise and linearity. The AD7626 is designed for high-speed applications and features a differential input structure, internal conversion clock, and an internal buffered reference. It is housed in a 32-lead, 5 mm × 5 mm LFCSP (Lead Frame Chip Scale Package) and operates over a temperature range of −40°C to +85°C.
Key Specifications
| Parameter | Value |
|---|---|
| Resolution | 16 bits |
| Sampling Rate | 10 MSPS |
| Signal-to-Noise Ratio (SNR) | 91.5 dB |
| Integral Nonlinearity (INL) | ±0.45 LSB |
| Differential Nonlinearity (DNL) | ±0.35 LSB |
| Power Dissipation | 136 mW |
| Input Range | ±4.096 V (differential) |
| Reference Voltage | Internal: 4.096 V, External: 1.2 V (buffered to 4.096 V) or 4.096 V |
| Interface | Serial LVDS, self clocked or echoed clock mode |
| Package | 32-lead LFCSP (5 mm × 5 mm) |
| Operating Temperature | −40°C to +85°C |
Key Features
- SAR architecture with no latency or pipeline delay, ensuring high-speed conversion without delays.
- High signal-to-noise ratio (SNR) of 91.5 dB and excellent linearity with ±0.45 LSB INL and ±0.35 LSB DNL.
- Differential input structure with a range of ±4.096 V, suitable for applications requiring high dynamic range.
- Internal conversion clock and internal buffered reference, reducing the need for external components.
- Serial LVDS interface available in self clocked or echoed clock mode, reducing external hardware connections.
- Common-mode output (VCM) useful for driving the common mode of input amplifiers.
Applications
- Digital imaging systems
- Digital X-ray and MRI systems
- CCD and IR cameras
- High-speed data acquisition systems
- High dynamic range telecommunications receivers
- Spectrum analysis and test equipment
Q & A
- What is the resolution and sampling rate of the AD7626BCPZ?
The AD7626BCPZ has a resolution of 16 bits and a sampling rate of 10 MSPS.
- What is the signal-to-noise ratio (SNR) of the AD7626BCPZ?
The SNR of the AD7626BCPZ is 91.5 dB.
- What are the input range and reference voltage options for the AD7626BCPZ?
The input range is ±4.096 V (differential), and the reference voltage can be internal (4.096 V), external (1.2 V buffered to 4.096 V), or external (4.096 V).
- What type of interface does the AD7626BCPZ use for data output?
The AD7626BCPZ uses a serial LVDS interface available in self clocked or echoed clock mode.
- What is the operating temperature range of the AD7626BCPZ?
The operating temperature range is −40°C to +85°C.
- What package type is the AD7626BCPZ available in?
The AD7626BCPZ is housed in a 32-lead LFCSP (5 mm × 5 mm).
- What are some typical applications of the AD7626BCPZ?
Typical applications include digital imaging systems, digital X-ray and MRI systems, CCD and IR cameras, high-speed data acquisition, high dynamic range telecommunications receivers, and spectrum analysis and test equipment.
- Does the AD7626BCPZ have any latency or pipeline delay?
No, the AD7626BCPZ uses a SAR architecture with no latency or pipeline delay.
- How is the common-mode output (VCM) useful in the AD7626BCPZ?
The VCM pin produces one half the voltage present on the REF pin, which can be useful for driving the common mode of the input amplifiers.
- What are the power supply requirements for the AD7626BCPZ?
The AD7626BCPZ requires 5 V and 2.5 V supplies, which can be generated using Analog Devices LDOs.
