Part A
AD9059BRS
Công ty Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4931 PCS
- Package
- SSOP-28
- Series
- Data Acquisition - Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD9059BRS and AD9051BRS are both dual 8-bit analog-to-digital converters from Analog Devices in the same 28-lead SSOP package, sharing a common pinout family and supply architecture. While their maximum sampling rates differ, the AD9059BRS can serve as a functional substitute for the AD9051BRS in applications where the higher conversion rate is not required, provided the system timing and clocking are validated against the target design.
Resolution
High match
Package Type
High match
Maximum Sampling Rate
Validation required
Supply Voltage
High match
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD9059BRS | AD9051BRS | Why it matters |
|---|---|---|---|
| Resolution | 8 bits | 10 bits | Resolution determines the quantization granularity; a 10-bit ADC provides 4x finer levels than an 8-bit device, directly affecting dynamic range and SNR. |
| Sampling Rate | 60 MSPS | 60 MSPS | Maximum conversion rate sets the highest input bandwidth that can be digitized without aliasing; both parts share the same throughput class. |
| Analog Input Bandwidth | 200 MHz | 300 MHz | Input bandwidth determines the highest frequency signal the sample-and-hold can accurately track, affecting suitability for IF-sampling and undersampling applications. |
| SNR (Signal-to-Noise Ratio) | 46 dB | 57 dB | SNR quantifies noise floor relative to signal; the 10-bit AD9051 offers roughly 11 dB better SNR, which is critical for high-dynamic-range receivers. |
| SFDR (Spurious-Free Dynamic Range) | 55 dBc | 70 dBc | SFDR indicates the margin between the fundamental and the largest spur, which governs the ability to detect weak signals in the presence of strong interferers. |
| Supply Voltage | 5 V | 5 V | Supply voltage must match the system rail; both devices operate from a single 5 V supply, simplifying power architecture compatibility. |
| Power Consumption | 250 mW | 300 mW | Power dissipation affects thermal design and battery life; the higher-resolution AD9051 draws more power, which must be accounted for in the thermal budget. |
| Output Interface | Parallel CMOS | Parallel CMOS | Output format must be compatible with the downstream FPGA/ASIC; both use parallel CMOS, but the AD9051 requires two additional data lines for its 10-bit word. |
| Package | 28-lead SSOP | 28-lead SSOP | Package footprint and pin count determine board-level drop-in compatibility; identical SSOP-28 packages allow the same PCB land pattern to be reused. |
| Operating Temperature Range | -40 to +85 °C | -40 to +85 °C | Temperature range defines the environments in which the part is guaranteed to meet specifications; matching industrial ranges support the same application envelope. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9059BRS | AD9051BRS |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| Number of Bits | 8 | 10 |
| Sampling Rate(Per Second) | 60M | 60M |
| Number of Inputs | 2 | 1 |
| Input Type | Single Ended | Differential |
| Data Interface | Parallel | Parallel |
| Configuration | S/H-ADC | S/H-ADC |
| Ratio - S / H: ADC | 1:1 | 1:1 |
| Number of A/D Converters | 2 | 1 |
| Architecture | Flash | Pipelined |
| Reference Type | Internal | Internal |
| Voltage - Supply, Analog | 5V | 5V |
| Voltage - Supply, Digital | 3V ~ 5V | 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Features | Simultaneous Sampling | - |
Frequently asked questions
What are the key differences between the AD9059BRS and AD9051BRS?
The AD9059BRS is a dual 8-bit analog-to-digital converter, while the AD9051BRS is a single 10-bit ADC. Both are manufactured by Analog Devices and housed in a 28-lead SSOP package, but they differ in resolution, channel count, and sampling architecture, so they are not functionally interchangeable.
What is the maximum sampling rate of each device?
The AD9059BRS is specified for a maximum sampling rate of 60 MSPS per channel, while the AD9051BRS is specified for a maximum sampling rate of 60 MSPS. Both devices operate from a single 5 V supply.
Do the AD9059BRS and AD9051BRS use the same package and pinout?
Both devices are offered in a 28-lead SSOP (RS suffix) package, but their pinouts are not identical because the AD9059BRS is a dual-channel device and the AD9051BRS is a single-channel device. PCB layouts must be verified against each device's respective datasheet before substitution.
What is the resolution and channel count of each converter?
The AD9059BRS provides two 8-bit ADC channels, whereas the AD9051BRS provides a single 10-bit ADC channel. This difference in resolution and channel count is the primary distinction between the two parts.
Can the AD9059BRS be used as a drop-in replacement for the AD9051BRS?
No. Because the AD9059BRS is a dual 8-bit converter and the AD9051BRS is a single 10-bit converter, they differ in resolution, channel count, and pinout. A direct drop-in replacement is not supported; any substitution requires full validation against the manufacturer datasheets and the target design.
What are the typical applications for these two ADCs?
The AD9059BRS is typically used in applications requiring two matched 8-bit channels, such as I/Q signal processing and dual-channel data acquisition. The AD9051BRS is typically used in single-channel applications requiring 10-bit resolution, such as imaging, instrumentation, and communications receivers.
What supply voltage and power consumption do these devices require?
Both the AD9059BRS and AD9051BRS operate from a single 5 V analog supply. Power consumption differs between the two devices due to differences in channel count and resolution; consult the respective Analog Devices datasheets for verified power figures.