Part A
AFE5832ZBV
德州儀器
- Lifecycle
- Active
- Stock
- 2381 件
- Package
- FBGA-289
- Series
- 資料獲取-類比前端（AFE）
Replacement verdict
Compatible functional replacement candidate
The AFE5832ZBV is a viable functional replacement candidate for the AFE5818ZBV in ultrasound receive-chain designs, sharing the same 8-channel architecture, 12-bit ADC resolution, and 5 mm × 5 mm NFBGA-289 footprint. However, the AFE5832ZBV delivers a higher maximum sampling rate and a different power profile, so the system clocking, power budget, and thermal design must be revalidated before substitution.
Channel Count
High match
ADC Resolution
High match
Maximum Sampling Rate
Validation required
Package and Pinout
Validation required
Parts at a glance
Part B
AFE5818ZBV
德州儀器
- Lifecycle
- Active
- Stock
- 4837 件
- Package
- NFBGA-289
- Series
- 資料獲取-類比前端（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 | AFE5818ZBV | AFE5832ZBV | Why it matters |
|---|---|---|---|
| Number of Channels | 16 | 32 | Channel count determines how many transducer elements or signal paths the AFE can support; a 32-channel device can serve twice the array size of a 16-channel device. |
| ADC Resolution | 14 bit | 12 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 sets the maximum signal bandwidth and time resolution; a higher rate supports higher-frequency transducers and finer axial resolution. |
| LNA Input-Referred Noise | 0.75 nV/√Hz | 1.1 nV/√Hz | Lower input-referred noise improves sensitivity to weak echoes, directly impacting penetration depth and image quality in the receive path. |
| Total Power Consumption | Approximately 1.1 W | Approximately 1.6 W | Power consumption affects thermal design, battery life, and channel density in portable and high-channel-count ultrasound systems. |
| Package | NFBGA (ZBV) | NFBGA (ZBV) | Package type and footprint determine PCB layout compatibility and whether the two devices can share a common board design. |
| Continuous Wave (CW) Doppler Support | Yes | Yes | CW Doppler capability is required for blood-flow velocity measurement; both devices support it, preserving functional equivalence for Doppler modes. |
| Digital Interface | LVDS | LVDS | The output interface must match the downstream FPGA or receiver; identical LVDS interfaces simplify drop-in substitution at the system level. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AFE5832ZBV | AFE5818ZBV |
|---|---|---|
| Supplier | Texas Instruments | - |
| Part Status | Active | Active |
| Number of Bits | 12 | 14 |
| Number of Channels | 32 | 16 |
| Power (Watts) | 42 mW | 140 mW |
| Voltage - Supply, Analog | 3V ~ 3.3V | 1.7V ~ 1.9V, 3.15V ~ 3.6V, 5V |
| Voltage - Supply, Digital | 3V ~ 3.3V | 1.15V ~ 1.25V, 1.7V ~ 1.9V |
| Mounting Type | Surface Mount | Surface Mount |
Frequently asked questions
What are the primary differences between the AFE5818ZBV and AFE5832ZBV?
The AFE5818ZBV is an 8-channel fully integrated analog front end (AFE) for ultrasound, while the AFE5832ZBV is a 32-channel AFE. The AFE5832ZBV integrates a larger number of receive channels in a single package, whereas the AFE5818ZBV targets lower-channel-count systems. Both are members of Texas Instruments' ultrasound AFE families and share similar per-channel signal-chain architecture, but differ in channel count and total power/package footprint.
Are the AFE5818ZBV and AFE5832ZBV pin-to-pin or package compatible?
No. The AFE5818ZBV is supplied in a 289-ball NFBGA package, while the AFE5832ZBV is supplied in a larger 676-ball NFBGA package. Because the channel counts and ball counts differ, the two devices are not pin-to-pin compatible and require different PCB footprints and layouts.
Do both devices support the same ultrasound signal-chain functions per channel?
Yes. Both AFEs integrate a low-noise amplifier (LNA), a programmable gain amplifier (PGA) with time-gain compensation, an anti-aliasing filter, and an analog-to-digital converter (ADC) per channel, along with digital demodulation and decimation features typical of TI ultrasound AFEs. The per-channel signal chain is functionally similar; the main difference is the number of channels integrated per device.
Can the AFE5832ZBV be used as a drop-in replacement for the AFE5818ZBV?
No. A drop-in replacement is not possible because the devices differ in channel count, package size, ball count, and PCB footprint. Any migration from the AFE5818ZBV to the AFE5832ZBV requires a new board layout, revised power and clock distribution, and revalidation of the system design against the respective datasheets.
Which device is better suited for high-channel-count ultrasound systems?
The AFE5832ZBV is better suited for high-channel-count systems because it integrates 32 receive channels in a single package, reducing the number of AFE devices required and simplifying system partitioning. The AFE5818ZBV, with 8 channels, is more appropriate for lower-channel-count or modular architectures where fewer channels per device are needed.
Do both devices require the same external support circuitry?
Both devices require external support circuitry such as power supplies, clocking, and decoupling, but the exact requirements differ because of the different channel counts and package sizes. Designers must consult the respective TI datasheets for the specific supply rails, clock input requirements, and recommended decoupling networks rather than assuming identical external circuitry.
Are the AFE5818ZBV and AFE5832ZBV both intended for medical ultrasound applications?
Yes. Both devices are analog front ends intended for ultrasound receive signal chains, including medical ultrasound imaging systems. They are not general-purpose data converters and should be selected based on the channel count, package, and system architecture requirements of the ultrasound design.