Part A
AD9059BRS
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 4931 個数
- Package
- SSOP-28
- Series
- データ取得 - アナログ/デジタルコンバータ (ADC)
Replacement verdict
Compatible functional replacement candidate
The AD9057BRS-40 is a viable functional replacement candidate for the AD9059BRS in many designs, sharing the same 8-bit resolution, 28-lead SSOP package, and parallel output architecture. However, the AD9057BRS-40 offers a higher 40 MSPS sampling rate versus the AD9059BRS, and designers must validate power consumption, analog input configuration, and timing margins against the target application before committing to substitution.
Resolution
High match
Package Type
High match
Sampling Rate
Validation required
Supply Current
Validation required
Parts at a glance
Part B
AD9057BRS-40
テキサス・インスツルメンツ
- Lifecycle
- Active
- Stock
- 9268 個数
- Package
- SSOP-20
- Series
- データ取得 - アナログ/デジタルコンバータ (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 | AD9059BRS | AD9057BRS-40 | Why it matters |
|---|---|---|---|
| Resolution | 8 bit | 8 bit | Both converters provide 8-bit resolution, so quantization accuracy is equivalent for signal reconstruction. |
| Sampling Rate | 60 MSPS | 40 MSPS | Maximum conversion speed determines the highest input frequency that can be digitized without aliasing; the AD9059 supports higher bandwidth signals. |
| Number of Input Channels | 2 (dual) | 1 (single) | A dual-channel ADC can sample two signals simultaneously (e.g., I/Q), while a single-channel part requires external multiplexing for multi-signal systems. |
| Analog Input Bandwidth | 200 MHz | 120 MHz | Input bandwidth limits the frequency range of signals that can be accurately acquired; wider bandwidth supports higher-IF sampling. |
| Supply Voltage | 5 V | 5 V | Both operate from a single 5 V supply, simplifying power design and allowing drop-in compatibility in the same rail architecture. |
| Power Consumption | ~500 mW | ~350 mW | Lower power dissipation reduces thermal load and is important in densely packed or thermally constrained designs. |
| Output Interface | Parallel CMOS | Parallel CMOS | Identical parallel CMOS outputs allow direct connection to the same digital backend without interface redesign. |
| Package | 28-lead SSOP | 20-lead SSOP | Different package footprints and pin counts affect PCB layout and preclude direct drop-in replacement without board redesign. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Matching industrial temperature ranges ensure both parts are suitable for the same environmental conditions. |
Need help validating a replacement?
Send your BOM and application constraints for technical and sourcing review.
Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | AD9059BRS | AD9057BRS-40 |
|---|---|---|
| Supplier | - | Analog Devices Inc.,Rochester Electronics, LLC |
| Part Status | Obsolete | Obsolete |
| Number of Bits | 8 | 8 |
| Sampling Rate(Per Second) | 60M | 40M |
| 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 |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
| Features | Simultaneous Sampling | - |
Frequently asked questions
What are the primary differences between the AD9059BRS and AD9057BRS-40?
The AD9059BRS is a dual 8-bit analog-to-digital converter, while the AD9057BRS-40 is a single 8-bit ADC. The AD9057BRS-40 is specified for a 40 MSPS sampling rate, whereas the AD9059BRS is a dual-channel device intended for applications requiring two synchronized conversion channels. They are not functionally interchangeable due to channel count and sampling-rate differences.
Are the AD9059BRS and AD9057BRS-40 pin-compatible?
No. The AD9059BRS is a dual-channel ADC and the AD9057BRS-40 is a single-channel ADC; their pinouts and package pin functions differ. A direct drop-in replacement is not possible without verifying pin assignments and PCB layout against the respective manufacturer datasheets.
What sampling rate does the AD9057BRS-40 support?
The AD9057BRS-40 is specified for a 40 MSPS maximum sampling rate, as indicated by the "-40" speed grade suffix in the part number. Designers should confirm the exact timing and clock requirements in the official Analog Devices datasheet before use.
What resolution do both the AD9059BRS and AD9057BRS-40 provide?
Both devices are 8-bit analog-to-digital converters. The AD9059BRS provides two 8-bit conversion channels, while the AD9057BRS-40 provides a single 8-bit conversion channel.
Can the AD9057BRS-40 replace one channel of the AD9059BRS in an existing design?
Not directly. Although both are 8-bit ADCs, the AD9059BRS is a dual-channel device and the AD9057BRS-40 is single-channel, so pinout, package, and channel architecture differ. Any substitution requires validation of pin functions, timing, and PCB land pattern against both datasheets.
What package type do the AD9059BRS and AD9057BRS-40 use?
Both part numbers use the "BRS" suffix, which corresponds to a specified package option in the Analog Devices ordering guide. Designers should verify the exact package outline, pin count, and land pattern in the official datasheet or ordering information before layout or substitution.
Which device should be selected for a dual-channel digitization application?
The AD9059BRS is the appropriate choice for dual-channel digitization because it integrates two 8-bit ADC channels in a single device. The AD9057BRS-40 is a single-channel ADC and would require two devices to achieve the same channel count, with additional considerations for synchronization and board space.