Part A
AFE5832LPZAV
德州儀器
- Lifecycle
- Active
- Stock
- 6726 件
- Package
- NFBGA-289
- Series
- 資料獲取-類比前端（AFE）
Replacement verdict
Compatible functional replacement candidate
The AFE5832LPZAV is a viable functional replacement candidate for the AFE5818ZBV in ultrasound receive signal chain designs, sharing the same TQFP-289 package footprint and 12-bit ADC architecture, though the reduced channel count and lower power consumption require careful system-level validation before adoption.
Channel Count
Validation required
Package Type
High match
ADC Resolution
High match
Power Consumption
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 | AFE5832LPZAV | Why it matters |
|---|---|---|---|
| Number of Channels | 16 | 32 | Channel count determines how many transducer elements can be processed simultaneously, directly affecting imaging system architecture and channel-count scalability. |
| Analog-to-Digital Converter Resolution | 14 bit | 12 bit | ADC resolution affects dynamic range and signal-to-noise performance; a 14-bit converter provides finer quantization than a 12-bit one. |
| Maximum Sampling Rate | 65 MSPS | 80 MSPS | Sampling rate limits the maximum signal bandwidth and image depth/penetration trade-offs in ultrasound receive chains. |
| Low-Noise Amplifier (LNA) Gain Range | 12 dB to 30 dB | 12 dB to 30 dB | LNA gain range sets the input dynamic range and noise figure performance for weak echo signals. |
| Time-Gain Compensation (TGC) Range | 0 dB to 45 dB | 0 dB to 45 dB | TGC range determines the ability to compensate for depth-dependent attenuation of returning echoes. |
| Continuous Wave (CW) Doppler Support | Yes | Yes | CW Doppler capability is required for measuring high-velocity blood flow without aliasing. |
| Output Interface | LVDS | LVDS | The digital output interface must match the downstream FPGA/processor to ensure data can be captured correctly. |
| Package Type | NFBGA (ZBV) | NFBGA (ZAV) | Package footprint and pinout affect PCB layout compatibility and whether a drop-in replacement is possible. |
| Supply Voltage | 1.8 V / 3.3 V | 1.8 V / 3.3 V | Supply rail requirements must match the board power design for the device to operate correctly. |
| Power Consumption per Channel | Approx. 90 mW/ch | Approx. 60 mW/ch | Per-channel power affects thermal design and total system power budget, especially in high-channel-count systems. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AFE5832LPZAV | AFE5818ZBV |
|---|---|---|
| Part Status | Active | Active |
| Number of Bits | 10, 12 | 14 |
| Number of Channels | 32 | 16 |
| Mounting Type | Surface Mount | Surface Mount |
| Power (Watts) | - | 140 mW |
| Voltage - Supply, Analog | - | 1.7V ~ 1.9V, 3.15V ~ 3.6V, 5V |
| Voltage - Supply, Digital | - | 1.15V ~ 1.25V, 1.7V ~ 1.9V |
Frequently asked questions
What are the primary differences between the AFE5818ZBV and AFE5832LPZAV?
The AFE5818ZBV is an 8-channel, 14-bit, 65 MSPS analog front-end (AFE) with a maximum input frequency of 100 MHz, while the AFE5832LPZAV is a 32-channel, 12-bit, 40 MSPS AFE with a maximum input frequency of 100 MHz. The AFE5818ZBV offers higher resolution and sample rate per channel, whereas the AFE5832LPZAV provides a higher channel count for dense multi-channel systems.
Are the AFE5818ZBV and AFE5832LPZAV pin-to-pin compatible?
No. The AFE5818ZBV is packaged in a 289-ball NFBGA (ZBV) and the AFE5832LPZAV is packaged in a 289-ball NFBGA (ZAV), but the two devices have different pin assignments and ball maps. They are not pin-to-pin compatible and cannot be interchanged on the same PCB without redesign.
What are the power consumption characteristics of each device?
The AFE5818ZBV typically consumes approximately 1.1 W total (about 137 mW per channel) at 65 MSPS. The AFE5832LPZAV is designed for low-power operation, typically consuming approximately 1.6 W total (about 50 mW per channel) at 40 MSPS. The AFE5832LPZAV offers lower per-channel power, making it suitable for high-channel-count, power-sensitive systems.
Which device is better suited for high-channel-count ultrasound systems?
The AFE5832LPZAV is better suited for high-channel-count systems because it integrates 32 channels in a single package with lower per-channel power consumption, reducing board space and thermal load. The AFE5818ZBV, with 8 channels, is better suited for lower-channel-count systems requiring higher resolution (14-bit) and higher sample rate (65 MSPS).
Do both devices support the same digital output interface?
No. The AFE5818ZBV provides a low-voltage differential signaling (LVDS) output interface, while the AFE5832LPZAV provides a JESD204B serial output interface. The different output interfaces require different FPGA or receiver configurations and are not directly interchangeable.
What are the input signal chain characteristics of each AFE?
Both devices integrate a low-noise amplifier (LNA), a programmable gain amplifier (VGA), and an anti-aliasing filter followed by an ADC. The AFE5818ZBV provides a 14-bit ADC with up to 65 MSPS, while the AFE5832LPZAV provides a 12-bit ADC with up to 40 MSPS. Both support time-gain compensation (TGC) for ultrasound receive chains.
Can the AFE5818ZBV and AFE5832LPZAV operate from the same supply voltages?
Both devices require multiple supply rails, typically including 1.8 V and 3.3 V analog and digital supplies, but the exact rail requirements and current consumption differ between the two devices. Designers must consult the respective datasheets to confirm supply sequencing and decoupling requirements before considering any common supply design.