Part A
ADS5474IPFP
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 7275 PCS
- Package
- HTQFP-80
- Series
- Data Acquisition - Analog to Digital Converters (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS5474IPFP and ADS5423IPGPR are both 14-bit high-speed analog-to-digital converters offering comparable sampling performance and a shared HTQFP-64 package footprint, making them a viable functional replacement candidate. However, the ADS5474IPFP provides a higher maximum sample rate and a wider analog input bandwidth, while the ADS5423IPGPR operates at a lower sample rate with a narrower input bandwidth. Designers should validate clocking, input drive, and output timing against the target system before substituting, as the two devices are not identical in dynamic performance and interface timing.
Resolution
High match
Package Type
High match
Maximum Sample Rate
Validation required
Analog Input Bandwidth
Validation required
Parts at a glance
Part B
ADS5423IPGPR
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 8872 PCS
- Package
- TQFP-52
- Series
- Data Acquisition - Analog to Digital Converters (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 | ADS5474IPFP | ADS5423IPGPR | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 14 bit | Bit depth determines the quantization granularity and achievable SNR; both are 14-bit so resolution is not a differentiator. |
| Sampling Rate | 400 MSPS | 80 MSPS | Maximum sample rate defines the input bandwidth and Nyquist limit; the ADS5474 supports much higher-speed signals than the ADS5423. |
| Input Type | Differential | Differential | Differential inputs improve common-mode rejection and dynamic performance; both devices use differential inputs. |
| Analog Supply Voltage | 3.3 V / 5 V (dual) | 5 V | Supply requirements affect board-level power design and compatibility; the ADS5474 uses separate analog and digital rails while the ADS5423 runs from a single 5 V supply. |
| Output Interface | Parallel LVDS | Parallel CMOS | Output signaling determines the digital interface, PCB routing, and FPGA/ASIC I/O compatibility; LVDS and CMOS are not directly interchangeable. |
| Package | HTQFP-80 | HTQFP-64 | Package footprint and pin count affect PCB layout and drop-in substitutability; the two parts are not footprint-compatible. |
| Operating Temperature Range | -40 °C to +85 °C | -40 °C to +85 °C | Industrial temperature range ensures reliable operation across environments; both parts share the same range. |
| Power Consumption (typical) | ~2.2 W | ~1.0 W | Power dissipation impacts thermal design and supply sizing; the higher-speed ADS5474 consumes significantly more power. |
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 | ADS5474IPFP | ADS5423IPGPR |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Active |
| Number of Bits | 14 | 14 |
| Sampling Rate(Per Second) | 400M | 80M |
| Number of Inputs | 1 | 1 |
| Input Type | Differential | 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 | 1 | 1 |
| Architecture | Pipelined | Pipelined |
| Reference Type | Internal | Internal |
| Voltage - Supply, Analog | 3.1V ~ 3.6V, 5V | 5V |
| Voltage - Supply, Digital | 3V ~ 3.6V | 5V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the ADS5474IPFP and ADS5423IPGPR?
The ADS5474IPFP is a 14-bit, 400-MSPS analog-to-digital converter in a 100-pin HTQFP (PFP) package, while the ADS5423IPGPR is a 14-bit, 80-MSPS ADC in a 52-pin HTQFP (PGP) package. The ADS5474 offers a significantly higher sampling rate, whereas the ADS5423 targets lower-speed, lower-power applications.
Are the ADS5474IPFP and ADS5423IPGPR pin-to-pin compatible?
No. The ADS5474IPFP uses a 100-pin HTQFP package and the ADS5423IPGPR uses a 52-pin HTQFP package, so they have different pin counts, footprints, and PCB land patterns and cannot be treated as drop-in replacements.
What are the resolution and sampling rate specifications of each device?
Both devices provide 14-bit resolution. The ADS5474IPFP supports a maximum sampling rate of 400 MSPS, while the ADS5423IPGPR supports a maximum sampling rate of 80 MSPS.
How do the power consumption figures compare?
The ADS5474IPFP typically dissipates approximately 2.2 W at 400 MSPS, whereas the ADS5423IPGPR typically dissipates approximately 1.0 W at 80 MSPS. The higher power of the ADS5474 reflects its much higher sampling rate.
What input interface and output format do these ADCs use?
Both converters accept differential analog inputs and provide parallel CMOS-compatible output data. The ADS5474IPFP delivers 14-bit parallel LVDS/CMOS output data at up to 400 MSPS, and the ADS5423IPGPR delivers 14-bit parallel CMOS output data at up to 80 MSPS.
Can the ADS5423IPGPR be used as a lower-speed substitute for the ADS5474IPFP?
Only if the system's maximum sample rate requirement is 80 MSPS or less and the design is re-laid out for the 52-pin package. Because the packages, pinouts, and maximum sampling rates differ, the substitution requires full validation against the ADS5423IPGPR datasheet and the target design.
What are the typical applications for each converter?
The ADS5474IPFP is suited to high-speed signal acquisition such as test and measurement, radar, and wideband communications receivers. The ADS5423IPGPR is suited to lower-speed instrumentation, medical imaging, and general-purpose data acquisition where 80 MSPS is sufficient.