Part A
ADS5474IPFP
Texas Instruments
- Lifecycle
- Active
- Stock
- 7275 PCS
- Package
- HTQFP-80
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Replacement verdict
Not a drop-in replacement
The ADS5474IPFP and ADS5411IPGPR are both 14-bit analog-to-digital converters, but they differ fundamentally in sampling rate, analog input bandwidth, package footprint, and power consumption. The ADS5474IPFP offers a significantly higher sampling rate and wider input bandwidth, while the ADS5411IPGPR operates at a lower sample rate with a different package and power profile. These differences in speed, signal chain requirements, and board layout mean the two devices are not functionally interchangeable without redesign.
Different sampling rate
Different analog input bandwidth
Different package footprint
Different power consumption
Parts at a glance
Part B
ADS5411IPGPR
Texas Instruments
- Lifecycle
- Active
- Stock
- 4454 PCS
- Package
- TQFP-52
- Series
- Acquisition de données - Convertisseur analogique - numérique (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 | ADS5411IPGPR | Why it matters |
|---|---|---|---|
| Resolution | 14 bit | 11 bit | Higher resolution provides finer quantization and better dynamic range; a 14-bit ADC cannot be directly substituted by an 11-bit device without losing accuracy. |
| Sampling Rate | 400 MSPS | 105 MSPS | The maximum sample rate determines the input bandwidth and signal frequencies the ADC can capture; the two parts differ by nearly 4x. |
| Input Type | Differential | Differential | Both use differential inputs, so the analog front-end topology is compatible, though drive requirements differ with speed. |
| Supply Voltage | 3.3 V analog / 3.3 V digital | 3.3 V analog / 3.3 V digital | Matching supply rails simplify power-rail reuse, but current draw and decoupling needs scale with sample rate. |
| Output Interface | Parallel LVDS | Parallel CMOS | LVDS versus CMOS output changes the digital interface, pin count, and board routing; they are not pin-compatible substitutes. |
| Package | 80-pin HTQFP (PFP) | 80-pin HTQFP (PFP) | Same package footprint allows board-level drop-in placement, but electrical differences still prevent direct substitution. |
| Power Consumption | Approx. 2.2 W | Approx. 1.1 W | Thermal design and power budget must be re-evaluated; the higher-speed part dissipates roughly twice the power. |
| SNR | Approx. 69 dBFS | Approx. 61 dBFS | Signal-to-noise ratio affects achievable dynamic range; the 14-bit part offers better SNR, which cannot be recovered with the 11-bit device. |
| Operating Temperature Range | -40 to +85 °C | -40 to +85 °C | Identical industrial temperature ratings mean environmental constraints are compatible for either part. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS5474IPFP | ADS5411IPGPR |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Active |
| Number of Bits | 14 | 11 |
| Sampling Rate(Per Second) | 400M | 105M |
| Number of Inputs | 1 | 1 |
| Input Type | Differential | Differential |
| Data Interface | Parallel | LVDS - 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 | 3V ~ 3.6V |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key differences between the ADS5474IPFP and ADS5411IPGPR?
The ADS5474IPFP is a 14-bit, 400-MSPS analog-to-digital converter in a 100-pin HTQFP package, while the ADS5411IPGPR is an 11-bit, 105-MSPS ADC in a 52-pin HTQFP package. They differ in resolution, sampling rate, package, and pinout, so they are not drop-in replacements for each other.
Do the ADS5474IPFP and ADS5411IPGPR have the same package and pinout?
No. The ADS5474IPFP uses a 100-pin HTQFP (PFP) package, whereas the ADS5411IPGPR uses a 52-pin HTQFP (PGP) package. The pin counts and pin functions differ, so the PCB land patterns and routing are not interchangeable.
Can the ADS5411IPGPR be used as a direct substitute for the ADS5474IPFP?
No. Beyond the package and pinout differences, the ADS5474IPFP provides 14-bit resolution at up to 400 MSPS, while the ADS5411IPGPR provides 11-bit resolution at up to 105 MSPS. A substitution would require redesign of the signal chain, clocking, and PCB layout, and must be validated against the system requirements.
What are the maximum sampling rates of these two ADCs?
The ADS5474IPFP supports a maximum sampling rate of 400 MSPS. The ADS5411IPGPR supports a maximum sampling rate of 105 MSPS.
What resolution does each converter provide?
The ADS5474IPFP is a 14-bit ADC, and the ADS5411IPGPR is an 11-bit ADC. The higher resolution of the ADS5474IPFP supports lower quantization noise and improved dynamic range for demanding applications.
Are the ADS5474IPFP and ADS5411IPGPR pin-compatible with each other?
No. Because they are housed in different HTQFP packages (100-pin versus 52-pin) with different pin assignments, they are not pin-compatible. Any board designed for one device cannot accept the other without modification.
Which device is better suited for high-speed, high-resolution applications?
The ADS5474IPFP is better suited for high-speed, high-resolution applications because it offers 14-bit resolution at up to 400 MSPS. The ADS5411IPGPR, with 11-bit resolution at up to 105 MSPS, is intended for lower-speed, lower-resolution signal chains.