Part A
ADS5400IPZP
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 7717 PCS
- Package
- HTQFP-100
- Series
- Data Acquisition - Analog to Digital Converters (ADC)
Replacement verdict
Not a drop-in replacement
The ADS5400IPZP and ADS5424IPGP are both high-speed analog-to-digital converters, but they differ fundamentally in resolution, sampling rate, channel architecture, and package footprint. The ADS5400IPZP is a single-channel 12-bit converter rated at 1 GSPS in a 100-pin HTQFP package, while the ADS5424IPGP is a 14-bit converter rated at 105 MSPS in a 52-pin HTQFP package. Because these differences affect resolution, throughput, board layout, and digital interface timing, the two devices are not functionally interchangeable and cannot be treated as a drop-in replacement in an existing design.
Different resolution
Different sampling rate
Different channel count
Different package footprint
Parts at a glance
Part B
ADS5424IPGP
Texas Dụng cụ
- Lifecycle
- Active
- Stock
- 2812 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 | ADS5400IPZP | ADS5424IPGP | Why it matters |
|---|---|---|---|
| Resolution | 12 bit | 14 bit | Higher resolution provides finer quantization and better dynamic range, directly affecting measurement accuracy and SNR. |
| Sampling Rate | 1 GSPS | 105 MSPS | Maximum sample rate determines the input bandwidth the ADC can capture; a 10x difference fundamentally changes the target application. |
| Input Type | Differential | Differential | Differential inputs improve common-mode noise rejection and are required for matching the analog front-end design. |
| Output Interface | LVDS (DDR) | LVDS (DDR) | The digital output format must match the receiving FPGA/ASIC interface for direct compatibility. |
| Supply Voltage | 3.3 V analog, 1.8 V digital | 5 V analog, 3.3 V digital | Different supply rails require different power sequencing and regulator designs, affecting board-level integration. |
| Power Consumption | Approx. 2.7 W | Approx. 1.4 W | Power dissipation impacts thermal design, supply sizing, and suitability for power-sensitive systems. |
| Package | 100-pin HTQFP (PZP) | 52-pin HTQFP (PGP) | Package footprint and pin count must match the PCB layout; different packages are not drop-in compatible. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Industrial temperature range confirms suitability for harsh-environment applications. |
| SNR | Approx. 61 dBFS | Approx. 73 dBFS | Signal-to-noise ratio determines achievable dynamic range and is critical for high-fidelity signal acquisition. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS5400IPZP | ADS5424IPGP |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Active |
| Number of Bits | 12 | 14 |
| Sampling Rate(Per Second) | 1G | 105M |
| Number of Inputs | 1 | 1 |
| Input Type | Differential | Differential |
| Data Interface | LVDS - 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 | External, Internal | Internal |
| Voltage - Supply, Analog | 3.135V ~ 3.465V, 5V | 5V |
| Voltage - Supply, Digital | 3.135V ~ 3.465V | 5V |
| Operating Temperature | -40°C ~ 85°C | -55°C ~ 125°C |
| Features | Temperature Sensor | - |
Frequently asked questions
What are the key differences between the ADS5400IPZP and ADS5424IPGP?
The ADS5400IPZP is a 12-bit, 1-GSPS analog-to-digital converter, while the ADS5424IPGP is a 14-bit, 105-MSPS ADC. The ADS5400IPZP targets very high sampling rate applications, whereas the ADS5424IPGP prioritizes higher resolution at a lower sampling rate.
Do the ADS5400IPZP and ADS5424IPGP use the same package?
No. The ADS5400IPZP is supplied in a 100-pin HTQFP PowerPAD package (PZP suffix), while the ADS5424IPGP is supplied in a 52-pin HTQFP PowerPAD package (PGP suffix). The packages differ in pin count and footprint, so they are not drop-in compatible.
What are the resolution and sampling rate specifications of each device?
The ADS5400IPZP provides 12-bit resolution at a maximum sampling rate of 1 GSPS. The ADS5424IPGP provides 14-bit resolution at a maximum sampling rate of 105 MSPS.
What is the input interface type for each converter?
Both devices use a differential analog input architecture. The ADS5400IPZP is designed for high-speed signal acquisition, and the ADS5424IPGP provides a differential input suitable for its 105-MSPS operation. Designers should consult the respective datasheets for full input voltage range and termination requirements.
What output interface do these ADCs provide?
The ADS5400IPZP provides parallel LVDS-compatible output data. The ADS5424IPGP provides parallel CMOS-compatible output data. The output logic families differ, so the receiving FPGA or DSP interface must be configured accordingly.
Can the ADS5424IPGP be used as a direct replacement for the ADS5400IPZP?
No. The two devices differ in resolution (12-bit vs 14-bit), maximum sampling rate (1 GSPS vs 105 MSPS), package pin count (100-pin vs 52-pin), and output interface (LVDS vs CMOS). A direct replacement is not possible without a complete redesign of the board and interface.
Which device is better suited for high-speed digitizer applications?
The ADS5400IPZP, with its 1-GSPS sampling rate, is intended for high-speed digitizer and wideband signal acquisition applications. The ADS5424IPGP, at 105 MSPS with 14-bit resolution, is better suited to applications requiring higher dynamic range at moderate sampling rates.
Are both devices available in industrial temperature range versions?
Both the ADS5400IPZP and ADS5424IPGP are specified as industrial-grade devices with an operating temperature range of -40°C to +85°C, per their respective manufacturer datasheets. Designers should confirm the exact grade marking on the ordered part number.