Part A
AFE5816ZAV
Texas Instruments
- Lifecycle
- Active
- Stock
- 2161 PCS
- Package
- NFBGA-289
- Series
- Acquisition de données - Analog Front End (AFE)
Replacement verdict
Compatible functional replacement candidate
The AFE5816ZAV and AFE5812ZCF are both 16-channel ultrasound analog front ends from Texas Instruments sharing the same TQFP-100 package and 5 V analog supply architecture, making them strong functional replacement candidates. However, the AFE5816ZAV offers a higher maximum sampling rate (65 MSPS versus 50 MSPS) and a different digital output interface, so system-level validation of clocking, output timing, and firmware configuration is required before substitution.
Channel Count
High match
Package Type
High match
Maximum Sampling Rate
Validation required
Digital Output Interface
Validation required
Parts at a glance
Part B
AFE5812ZCF
Texas Instruments
- Lifecycle
- Active
- Stock
- 6785 PCS
- Package
- BGA-135
- Series
- Acquisition de données - 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 | AFE5812ZCF | Why it matters |
|---|---|---|---|
| Number of Channels | 16 | 8 | Channel count determines how many transducer elements can be processed simultaneously, directly affecting system density and imaging architecture. |
| Analog-to-Digital Converter Resolution | 14 bit | 12 bit | Higher ADC resolution provides greater dynamic range and finer signal detail, which impacts image quality and small-signal detection. |
| Maximum Sampling Rate | 65 MSPS | 50 MSPS | Sampling rate limits the maximum signal bandwidth and achievable axial resolution in ultrasound receive chains. |
| Package Type | NFBGA (ZAV) | NFBGA (ZCF) | Package footprint and pinout must match the PCB layout for a drop-in replacement; differing package codes indicate layout incompatibility. |
| Input Referred Noise | 0.8 nV/√Hz (typical) | 1.0 nV/√Hz (typical) | Lower input-referred noise improves sensitivity and penetration depth in ultrasound imaging front ends. |
| Total Power Consumption | Approximately 1.1 W (16 channels) | Approximately 0.6 W (8 channels) | Power budget affects thermal design and portability; per-channel power and total channel count both influence system power planning. |
| Time Gain Compensation Range | Up to 45 dB | Up to 40 dB | TGC range determines the ability to compensate for depth-dependent attenuation of returning echoes. |
| LNA Gain Range | Configurable (up to ~24 dB) | Configurable (up to ~24 dB) | Low-noise amplifier gain settings affect the noise figure and signal handling capability of the receive channel. |
| Continuous Wave (CW) Doppler Support | Supported | Supported | CW Doppler capability is required for blood flow velocity measurement; both devices support it, preserving this function. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Industrial temperature range ensures reliable operation across medical and industrial environments. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AFE5816ZAV | AFE5812ZCF |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Active |
| Number of Bits | 12, 14 | 12, 14 |
| Number of Channels | 16 | 8 |
| Power (Watts) | 94 mW | 180 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 AFE5816ZAV and AFE5812ZCF?
The AFE5816ZAV and AFE5812ZCF are fully integrated analog front-end (AFE) devices from Texas Instruments designed for ultrasound imaging systems. Each integrates a low-noise amplifier (LNA), voltage-controlled attenuator (VCA), programmable gain amplifier (PGA), and a 14-bit analog-to-digital converter (ADC) to process multiple ultrasound channels.
How do the channel counts of the AFE5816ZAV and AFE5812ZCF differ?
The AFE5816ZAV integrates 16 channels, while the AFE5812ZCF integrates 8 channels. This difference directly affects the number of transducer elements each device can support and the overall channel density of the ultrasound system design.
What are the package differences between the AFE5816ZAV and AFE5812ZCF?
The AFE5816ZAV is supplied in a 289-ball NFBGA (ZAV) package, whereas the AFE5812ZCF is supplied in a 196-ball NFBGA (ZCF) package. The different ball counts and footprints mean the two devices are not drop-in replacements and require distinct PCB land patterns.
Do the AFE5816ZAV and AFE5812ZCF share the same ADC resolution and sample rate?
Yes. Both devices integrate a 14-bit ADC with a maximum sampling rate of 65 MSPS per channel, providing comparable digital output resolution and conversion speed for ultrasound signal processing.
Are the AFE5816ZAV and AFE5812ZCF pin-to-pin compatible?
No. Because the AFE5816ZAV uses a 289-ball NFBGA package and the AFE5812ZCF uses a 196-ball NFBGA package, they are not pin-to-pin compatible. A redesign of the PCB layout is required when migrating between the two devices.
What is the typical power consumption difference between the AFE5816ZAV and AFE5812ZCF?
Per-channel power consumption is comparable between the two devices, but total power differs because the AFE5816ZAV integrates 16 channels while the AFE5812ZCF integrates 8 channels. System-level power budgeting should account for the total channel count in each design.
Can the AFE5816ZAV and AFE5812ZCF be used in the same ultrasound system architecture?
Both devices target ultrasound imaging signal chains and share the same functional block architecture (LNA, VCA, PGA, 14-bit ADC). However, because of the differing channel counts and package footprints, they suit different system partitioning and cannot be interchanged without layout and channel-mapping changes.