Part A
AD9059BRS
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 4931 PCS
- Package
- SSOP-28
- Series
- Acquisição de dados - Analogo para Convertedores Digitais (ADC)
Replacement verdict
Not a drop-in replacement
The AD9057BRSZ-80 and AD9059BRS are both 8-bit analog-to-digital converters, but they differ fundamentally in channel architecture, sampling rate, and package footprint, so neither part can serve as a direct drop-in substitute for the other. The AD9057BRSZ-80 is a single-channel 80 MSPS ADC in a 20-lead SSOP, while the AD9059BRS is a dual-channel 60 MSPS ADC in a 28-lead SSOP, requiring designers to rework the signal chain, clocking, and PCB layout before considering a swap.
Different channel count
Different sampling rate
Different package footprint
Different pin configuration
Parts at a glance
Part B
AD9057BRSZ-80
Analog Devices Inc.
- Lifecycle
- Active
- Stock
- 2609 PCS
- Package
- SSOP-20
- Series
- Acquisição de dados - Analogo para Convertedores Digitais (ADC)
Key differences
Rows are prioritized by design impact. Highlighted values require attention during substitution.
Key electrical and mechanical differences between the two devices
| Parameter | AD9057BRSZ-80 | AD9059BRS | Why it matters |
|---|---|---|---|
| Resolution | 8 bit | 8 bit | Both are 8-bit ADCs, so quantization accuracy is equivalent for substitutability. |
| Sampling Rate | 80 MSPS | 60 MSPS | The higher sampling rate of the AD9057BRSZ-80 supports wider input bandwidth and faster signal capture. |
| Number of ADCs | 1 | 2 | The AD9059BRS is a dual ADC, enabling simultaneous two-channel sampling, while the AD9057BRSZ-80 is single-channel. |
| Input Type | Single-ended | Differential | Differential inputs improve noise immunity and dynamic performance; single-ended inputs simplify front-end design. |
| Supply Voltage | 5 V | 5 V | Both operate from a 5 V supply, so power rail compatibility is maintained. |
| Package / Case | 20-SSOP | 28-SSOP | Different package footprints and pin counts affect PCB layout and drop-in replacement feasibility. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Identical industrial temperature ranges ensure equivalent environmental robustness. |
| Power Consumption | Approx. 300 mW | Approx. 500 mW | Lower power dissipation in the AD9057BRSZ-80 reduces thermal load and suits power-sensitive designs. |
| Output Interface | Parallel CMOS/TTL | Parallel CMOS/TTL | Matching output interfaces allow similar digital back-end connectivity. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9059BRS | AD9057BRSZ-80 |
|---|---|---|
| Part Status | Obsolete | Active |
| Number of Bits | 8 | 8 |
| Sampling Rate(Per Second) | 60M | 80M |
| Number of Inputs | 2 | 1 |
| Input Type | Single Ended | Single Ended |
| 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 |
| Features | Simultaneous Sampling | - |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the AD9057BRSZ-80 and the AD9059BRS?
The AD9057BRSZ-80 is an 8-bit, 80 MSPS analog-to-digital converter, while the AD9059BRS is a dual 8-bit, 60 MSPS ADC. The AD9057BRSZ-80 provides a single ADC channel in a 20-lead SSOP package, whereas the AD9059BRS integrates two ADC channels in a 28-lead SSOP package, making the AD9059BRS suited to I/Q or dual-channel sampling applications.
Are the AD9057BRSZ-80 and AD9059BRS pin-compatible?
No. The AD9057BRSZ-80 is housed in a 20-lead SSOP package and the AD9059BRS is housed in a 28-lead SSOP package. The different package sizes and pin counts mean the two devices are not pin-compatible and cannot be interchanged on the same PCB land pattern without redesign.
What are the maximum sampling rates of these two converters?
The AD9057BRSZ-80 is specified for a maximum sampling rate of 80 MSPS. The AD9059BRS is specified for a maximum sampling rate of 60 MSPS per channel. The AD9057BRSZ-80 therefore offers a higher single-channel conversion rate, while the AD9059BRS trades per-channel speed for dual-channel integration.
Do both devices provide the same resolution?
Yes. Both the AD9057BRSZ-80 and the AD9059BRS are 8-bit analog-to-digital converters. The primary architectural difference is channel count and sampling rate rather than resolution.
Can the AD9059BRS replace the AD9057BRSZ-80 in an existing single-channel design?
Not as a direct drop-in replacement. The AD9059BRS has a different package, pinout, and dual-channel architecture, and its maximum sampling rate is 60 MSPS versus 80 MSPS for the AD9057BRSZ-80. Any substitution requires verification of package footprint, pin functions, clock and input interfacing, and timing against the respective manufacturer datasheets.
What are the typical applications for each converter?
The AD9057BRSZ-80, as a single 8-bit 80 MSPS ADC, is typically used in single-channel digitizing applications such as video, imaging, and general-purpose high-speed data acquisition. The AD9059BRS, as a dual 8-bit 60 MSPS ADC, is typically used where two channels must be sampled simultaneously, such as I/Q demodulation and dual-channel signal processing.
Do both parts operate from the same analog supply voltage?
Both devices are specified for a single +5 V analog supply in their manufacturer datasheets. Designers should confirm the exact supply and reference conditions, as well as digital output supply requirements, against the official Analog Devices datasheets for each part before finalizing a design.