Part A
AD9268BCPZ-105
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 3670 PCS
- Package
- VFQFN-64
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Replacement verdict
Not a drop-in replacement
The AD9268BCPZ-105 and AD9262BCPZ are not functionally interchangeable: they differ in resolution, sample rate, input architecture, and digital output interface, so the AD9262BCPZ cannot directly replace the AD9268BCPZ-105 in an existing design without significant re-engineering and validation.
Different resolution
Different sample rate
Different input architecture
Different output interface
Parts at a glance
Part B
AD9262BCPZ
Analog Equipment GmbH.
- Lifecycle
- Active
- Stock
- 3731 PCS
- Package
- VFQFN-64
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD9268BCPZ-105 | AD9262BCPZ | Why it matters |
|---|---|---|---|
| Resolution (bits) | 16 | 16 | Bit depth determines the dynamic range and quantization noise floor; both are 16-bit so resolution is not a differentiator. |
| Sample Rate (MSPS) | 105 | 160 | Maximum sampling rate sets the usable signal bandwidth; the AD9262 supports a higher Nyquist bandwidth than the AD9268-105. |
| Architecture | Pipelined ADC | Continuous-time sigma-delta ADC | The converter architecture affects anti-alias filtering needs, latency, and noise shaping; these are fundamentally different converter types and not drop-in substitutes. |
| Input Type | Differential | Differential | Both accept differential inputs, so analog front-end coupling requirements are similar. |
| Output Interface | Parallel CMOS/LVDS | LVDS | Output format must match the receiving FPGA/ASIC; the AD9268 offers CMOS or LVDS while the AD9262 provides LVDS only. |
| Supply Voltage (V) | 1.8 (analog and digital) | 1.8 (analog and digital) | Supply rail compatibility affects power design; both operate from 1.8 V so power architecture is compatible. |
| Package | 64-lead LFCSP | 64-lead LFCSP | Package and pinout determine board footprint and layout reuse; both use a 64-lead LFCSP but pinouts differ. |
| SNR (dBFS, typical) | 78.2 | 83 | Signal-to-noise ratio defines achievable dynamic range; the AD9262 offers higher SNR, benefiting high-dynamic-range applications. |
| Power Consumption (mW) | 420 | 600 | Power budget and thermal design depend on dissipation; the AD9262 consumes more power than the AD9268-105. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9268BCPZ-105 | AD9262BCPZ |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 16 | 16 |
| Sampling Rate(Per Second) | 105M | 160M |
| Number of Inputs | 2 | 2 |
| Input Type | Differential | Differential |
| Data Interface | LVDS - Parallel, Parallel | Parallel |
| Configuration | S/H-ADC | ADC |
| Number of A/D Converters | 2 | 2 |
| Architecture | Pipelined | Sigma-Delta |
| Reference Type | External, Internal | Internal |
| Voltage - Supply, Analog | 1.7V ~ 1.9V | 1.7V ~ 1.9V |
| Voltage - Supply, Digital | 1.7V ~ 1.9V | 1.7V ~ 1.9V |
| Features | Simultaneous Sampling | Simultaneous Sampling |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Ratio - S / H: ADC | 1:1 | - |
Frequently asked questions
What are the key differences between the AD9268BCPZ-105 and the AD9262BCPZ?
The AD9268BCPZ-105 is a dual-channel 16-bit ADC with a maximum sampling rate of 105 MSPS, while the AD9262BCPZ is a dual-channel 16-bit ADC with a maximum sampling rate of 160 MSPS. Both are housed in a 64-lead LFCSP package and operate from a 1.8 V analog supply, but they differ in sample rate, power consumption, and output interface configuration.
Are the AD9268BCPZ-105 and AD9262BCPZ pin-compatible?
Both devices are offered in a 64-lead LFCSP package with the same footprint, but pin functions and configuration options differ between the two products. Designers must verify the pinout and configuration pin assignments against the respective manufacturer datasheets before considering any board-level substitution.
What is the maximum sampling rate of each device?
The AD9268BCPZ-105 supports a maximum sampling rate of 105 MSPS, whereas the AD9262BCPZ supports a maximum sampling rate of 160 MSPS. The higher sample rate of the AD9262BCPZ allows wider signal bandwidth capture in undersampling and wideband receiver applications.
Do both ADCs provide the same resolution and channel count?
Yes. Both the AD9268BCPZ-105 and the AD9262BCPZ are dual-channel, 16-bit analog-to-digital converters, providing two simultaneous sampling channels with 16-bit output resolution.
What output interface do these ADCs use?
Both devices provide a parallel CMOS/LVDS-compatible output interface for the digital data outputs. The exact output format and drive configuration should be confirmed from the respective datasheets, as the output stage settings and timing differ between the two speed grades.
How does power consumption compare between the two parts?
Power consumption scales with sample rate. The AD9268BCPZ-105, operating at up to 105 MSPS, consumes less power per channel than the AD9262BCPZ, which runs at up to 160 MSPS. Exact power figures at specific sample rates and supply conditions should be taken from the manufacturer datasheets.
Can the AD9268BCPZ-105 be used as a drop-in replacement for the AD9262BCPZ?
No. Although both are 16-bit dual ADCs in a 64-lead LFCSP package, they differ in maximum sample rate, power consumption, and configuration details. A drop-in replacement requires validation of pin functions, clocking, output timing, and PCB layout against the target design and manufacturer documentation.
What are typical applications for these dual 16-bit ADCs?
Both devices are suited to applications requiring high dynamic range and simultaneous dual-channel sampling, such as medical imaging, communications receivers, and instrumentation. The AD9262BCPZ's higher 160 MSPS rate supports wider bandwidth signal chains, while the AD9268BCPZ-105 targets applications where 105 MSPS is sufficient.