Part A
AFE5816ZAV
Texas Instruments
- Lifecycle
- Active
- Stock
- 2161 Stückzahl
- Package
- NFBGA-289
- Series
- Datenerfassung mit dem Analog Front End (AFE)
Replacement verdict
Not a drop-in replacement
The AFE5816ZAV and AFE5803ZCF are not drop-in replacements for one another. They differ in channel count, package footprint, and power architecture, and the AFE5816ZAV integrates a CW Doppler mixer path that the AFE5803ZCF does not provide. Any substitution would require board redesign, firmware revalidation, and a full ultrasound signal-chain requalification.
Different channel count
Different package footprint
Different power architecture
Different signal-chain features
Parts at a glance
Part B
AFE5803ZCF
Texas Instruments
- Lifecycle
- Active
- Stock
- 9647 Stückzahl
- Package
- BGA-135
- Series
- Datenerfassung mit dem Analog Front End (AFE)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AFE5816ZAV | AFE5803ZCF | Why it matters |
|---|---|---|---|
| Number of Channels | 16 | 8 | Channel count determines how many transducer elements can be processed simultaneously, directly affecting system architecture and board layout. |
| ADC Resolution | 14 bit | 12 bit | Higher resolution provides greater dynamic range and finer signal detail, which impacts image quality in ultrasound receive chains. |
| Maximum Sampling Rate | 65 MSPS | 65 MSPS | Sampling rate sets the maximum signal bandwidth that can be digitized without aliasing. |
| LNA Gain Range | 24 dB | 24 dB | Low-noise amplifier gain range affects sensitivity and the ability to handle weak echo signals. |
| Total Power Consumption | Approximately 1.1 W | Approximately 0.65 W | Power consumption influences thermal design and is critical for portable or high-channel-density ultrasound systems. |
| Package Type | NFBGA (ZAV) | NFBGA (ZCF) | Package footprint and pinout determine PCB layout compatibility and whether a drop-in replacement is possible. |
| Operating Temperature Range | -40°C to 85°C | -40°C to 85°C | Temperature range confirms suitability for industrial and medical environments with varying thermal conditions. |
| Analog Supply Voltage | 1.8 V / 3.3 V | 1.8 V / 3.3 V | Supply voltage requirements must match the existing power rail design for functional substitutability. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AFE5816ZAV | AFE5803ZCF |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC,Texas Instruments |
| Part Status | Active | Active |
| Number of Bits | 12, 14 | 14 |
| Number of Channels | 16 | 8 |
| Power (Watts) | 94 mW | 190 mW |
| Voltage - Supply, Analog | 1.7V ~ 2V, 3V ~ 3.3V | 1.7V ~ 1.9V, 3.15V ~ 3.6V, 5V |
| Voltage - Supply, Digital | 1.15V ~ 1.25V, 1.7V ~ 1.9V | 1.7V ~ 1.9V |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the AFE5816ZAV and AFE5803ZCF?
The AFE5816ZAV is an 8-channel fully integrated analog front end (AFE) for ultrasound with a 14-bit ADC and CW Doppler mixer, while the AFE5803ZCF is an 8-channel AFE with a 12-bit ADC and no CW Doppler mixer. The AFE5816ZAV targets higher dynamic range and harmonic imaging applications, whereas the AFE5803ZCF is suited for general ultrasound receive chains requiring lower power and cost.
Are the AFE5816ZAV and AFE5803ZCF pin-to-pin compatible?
No. The AFE5816ZAV is supplied in a 289-ball NFBGA (ZAV) package, and the AFE5803ZCF is supplied in a 289-ball NFBGA (ZCF) package. Although both use a 289-ball NFBGA footprint, the ball assignments and internal signal routing differ between the two devices, so they are not drop-in replacements. PCB layout must be redesigned per the respective datasheet pinout.
What is the ADC resolution of each device?
The AFE5816ZAV integrates a 14-bit analog-to-digital converter per channel, while the AFE5803ZCF integrates a 12-bit ADC per channel. The higher resolution of the AFE5816ZAV provides improved dynamic range and SNR for demanding ultrasound imaging modes.
Do both devices include a continuous-wave (CW) Doppler mixer?
No. The AFE5816ZAV includes an integrated CW Doppler mixer per channel for continuous-wave Doppler processing. The AFE5803ZCF does not include a CW Doppler mixer; CW Doppler must be implemented with external circuitry if required in an AFE5803ZCF-based design.
How do the channel counts compare?
Both the AFE5816ZAV and AFE5803ZCF are 8-channel analog front ends. Each channel includes a low-noise amplifier (LNA), programmable gain amplifier (VGA), and ADC, making both suitable for multi-channel ultrasound receive architectures.
Can the AFE5803ZCF be used as a substitute for the AFE5816ZAV in an existing design?
No, not as a direct substitute. The AFE5803ZCF lacks the integrated CW Doppler mixer and uses a 12-bit ADC versus the 14-bit ADC in the AFE5816ZAV, and the pinouts differ. Substitution would require redesign of the receive chain, revalidation of dynamic range and Doppler performance, and a new PCB layout based on the AFE5803ZCF datasheet.
What are the typical target applications for each device?
The AFE5816ZAV is typically used in mid-to-high-end ultrasound systems requiring 14-bit resolution and integrated CW Doppler, such as cardiac and general imaging systems. The AFE5803ZCF is typically used in portable and mid-range ultrasound systems where 12-bit resolution and lower power consumption are acceptable and CW Doppler is handled externally.