Part A
AFE5828ZAV
Texas Instruments
- Lifecycle
- Active
- Stock
- 3880 PCS
- Package
- NFBGA-289
- Series
- Acquisição de dados - Front End analógico (AFE)
Replacement verdict
Compatible functional replacement candidate
The AFE5816ZAV and AFE5828ZAV share the same Texas Instruments fully integrated analog front-end architecture, identical 14 mm × 14 mm NFBGA-289 footprint, and the same 1.8 V / 3.3 V supply scheme, making them viable functional replacement candidates in ultrasound and medical imaging signal chains. However, the AFE5828ZAV offers a higher per-channel sampling rate and a different channel count, so system timing, clock distribution, and FPGA interface logic must be re-validated before substitution. Designers should confirm channel count requirements, maximum sample rate headroom, and digital output lane configuration against the target application prior to committing to a drop-in replacement.
Package Type
High match
Channel Count
Validation required
Maximum Sample Rate
Validation required
Supply Voltage
High match
Parts at a glance
Part B
AFE5816ZAV
Texas Instruments
- Lifecycle
- Active
- Stock
- 2161 PCS
- Package
- NFBGA-289
- Series
- Acquisição de dados - Front End analógico (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 | AFE5828ZAV | Why it matters |
|---|---|---|---|
| Number of Channels | 16 | 8 | Channel count determines how many transducer elements or signal paths the AFE can support; a 16-channel device cannot directly replace an 8-channel one in a system designed for 8 channels without unused channels, and vice versa. |
| ADC Resolution | 12 bit | 14 bit | Higher ADC resolution provides greater dynamic range and finer quantization, which affects image quality and small-signal detection in ultrasound receive chains. |
| Maximum ADC Sampling Rate | 65 MSPS | 80 MSPS | Sampling rate limits the maximum signal bandwidth and depth resolution; a slower ADC may not meet the timing requirements of systems designed around the faster part. |
| LNA Gain Range | 12 dB to 30 dB | 12 dB to 30 dB | Low-noise amplifier gain range determines the sensitivity and input dynamic range handling; matching ranges support similar small-signal performance. |
| Total Power Consumption | Approximately 1.1 W | Approximately 0.6 W | Power consumption affects thermal design, battery life, and system power budgets; a lower-power part may not be a drop-in replacement where thermal or supply design was sized for the higher-power device. |
| Package Type | NFBGA (ZAV) | NFBGA (ZAV) | Package and pinout compatibility is essential for board-level substitutability; identical package families suggest similar footprint but pin functions must be verified. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Industrial temperature range ensures reliable operation across environments; matching ranges support use in the same application conditions. |
| Supply Voltage | 1.8 V (digital), 3.3 V (analog) | 1.8 V (digital), 3.3 V (analog) | Supply rail requirements must match the existing power architecture; identical rails simplify substitution without redesigning the power tree. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AFE5828ZAV | AFE5816ZAV |
|---|---|---|
| Part Status | Active | Active |
| Mounting Type | Surface Mount | Surface Mount |
| Number of Bits | - | 12, 14 |
| Number of Channels | - | 16 |
| Power (Watts) | - | 94 mW |
| Voltage - Supply, Analog | - | 1.7V ~ 2V, 3V ~ 3.3V |
| Voltage - Supply, Digital | - | 1.15V ~ 1.25V, 1.7V ~ 1.9V |
Frequently asked questions
What are the AFE5816ZAV and AFE5828ZAV devices?
Both are Texas Instruments fully integrated analog front-end (AFE) devices for ultrasound imaging systems, integrating a low-noise amplifier (LNA), voltage-controlled attenuator (VCA), programmable gain amplifier (PGA), and analog-to-digital converter (ADC) in a single package. The AFE5816ZAV is an 8-channel AFE with a 14-bit ADC, while the AFE5828ZAV is an 8-channel AFE with a 12-bit ADC.
What is the key difference between the AFE5816ZAV and AFE5828ZAV?
The primary difference is ADC resolution: the AFE5816ZAV integrates a 14-bit ADC, whereas the AFE5828ZAV integrates a 12-bit ADC. Both are 8-channel ultrasound AFEs in the same ZAV package family, but the higher resolution of the AFE5816ZAV supports greater dynamic range for demanding imaging requirements.
Are the AFE5816ZAV and AFE5828ZAV pin-compatible?
Both devices are offered in the same ZAV package (a 289-ball NFBGA). However, designers must verify pin function assignments and any supply or configuration pin differences against the respective TI datasheets before considering any board-level interchange, since ADC resolution differences may affect digital output pin usage.
What is the maximum sampling rate of these AFEs?
Both the AFE5816ZAV and AFE5828ZAV support a maximum ADC sampling rate of 65 MSPS per channel, as specified in the Texas Instruments datasheets. This makes them suitable for mid-range to high-end ultrasound receive channels.
How many channels do the AFE5816ZAV and AFE5828ZAV provide?
Each device integrates 8 independent receive channels, each containing an LNA, VCA, PGA, and ADC. This 8-channel integration reduces board area and power consumption in multi-channel ultrasound systems.
What is the typical power consumption per channel?
Both devices are designed for low power consumption, with typical per-channel power in the range of approximately 100 mW to 150 mW depending on configuration and sampling rate. Designers should consult the TI datasheet power tables for exact values under specific operating conditions.
Can the AFE5816ZAV be used as a drop-in replacement for the AFE5828ZAV?
Not as a direct drop-in replacement without validation. Although both are 8-channel AFEs in the same ZAV package, the 14-bit versus 12-bit ADC difference affects output data format, digital interface timing, and possibly configuration register settings. The replacement must be validated against the TI datasheets and the target system requirements.
What ultrasound system applications are these AFEs intended for?
Both the AFE5816ZAV and AFE5828ZAV are intended for medical ultrasound imaging systems, including cart-based and portable ultrasound scanners, where multi-channel receive signal chains with integrated LNA, VCA, PGA, and ADC are required. They are not intended for applications outside the ultrasound receive signal chain scope.