Part A
ADS5400IPZP
Texas Instruments
- Lifecycle
- Active
- Stock
- 7717 Stückzahl
- Package
- HTQFP-100
- Series
- Datenerfassung mit Analog to Digital Converters (ADC)
Replacement verdict
Not a drop-in replacement
The ADS5400IPZP and ADS5423IPGP are not drop-in replacements for one another. Although both are 14-bit analog-to-digital converters, they differ in sampling rate, analog input bandwidth, package footprint, and power consumption, so a direct board-level substitution is not possible without redesign.
Different sampling rate
Different analog input bandwidth
Different package footprint
Different power consumption
Parts at a glance
Part B
ADS5423IPGP
Texas Instruments
- Lifecycle
- Active
- Stock
- 126 Stückzahl
- Package
- TQFP-52
- Series
- Datenerfassung mit 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 | ADS5423IPGP | 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 | 80 MSPS | The maximum sample rate determines the input bandwidth the ADC can capture; a 1 GSPS device supports much wider signal bandwidths than an 80 MSPS device. |
| Input Type | Differential | Differential | Differential inputs improve common-mode noise rejection and even-order harmonic performance in high-speed signal chains. |
| Supply Voltage | 3.3 V (analog), 1.8 V (digital) | 3.3 V (analog), 3.3 V (digital) | Supply rail requirements affect board-level power design and compatibility with existing digital interfaces. |
| Output Interface | LVDS | LVDS | The output interface must match the receiving FPGA/ASIC to ensure reliable high-speed data capture. |
| Package | 100-pin HTQFP (PZP) | 64-pin HTQFP (PGP) | Package footprint and pin count determine PCB layout compatibility and cannot be substituted without a board redesign. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | Industrial temperature range ensures reliable operation across demanding environmental conditions. |
| Power Consumption (typical) | ~2.4 W | ~1.0 W | Power dissipation impacts thermal design, supply sizing, and overall system efficiency. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS5400IPZP | ADS5423IPGP |
|---|---|---|
| Supplier | - | Rochester Electronics, LLC,Texas Instruments |
| Part Status | Active | Active |
| Number of Bits | 12 | 14 |
| Sampling Rate(Per Second) | 1G | 80M |
| 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 | -40°C ~ 85°C |
| Features | Temperature Sensor | - |
Frequently asked questions
What are the key differences between the ADS5400IPZP and ADS5423IPGP?
The ADS5400IPZP is a 12-bit, 1-GSPS analog-to-digital converter with a parallel LVDS output interface, while the ADS5423IPGP is a 14-bit, 80-MSPS ADC with a parallel CMOS output interface. They differ in resolution, sampling rate, output interface, and power consumption, so they are not interchangeable in a given design.
Are the ADS5400IPZP and ADS5423IPGP pin-compatible?
No. The ADS5400IPZP is supplied in a 100-pin HTQFP (PZP) package, and the ADS5423IPGP is supplied in a 52-pin HTQFP (PGP) package. The package body sizes, pin counts, and pin assignments differ, so the PCB land patterns are not compatible.
What are the maximum sampling rates of these two ADCs?
The ADS5400IPZP supports a maximum sampling rate of 1 GSPS (1000 MSPS). The ADS5423IPGP supports a maximum sampling rate of 80 MSPS. The ADS5400 is therefore intended for much higher-speed signal acquisition applications.
What resolution does each converter provide?
The ADS5400IPZP provides 12-bit resolution, while the ADS5423IPGP provides 14-bit resolution. The ADS5423 offers finer quantization, whereas the ADS5400 trades resolution for a much higher sampling rate.
What output interfaces do the ADS5400IPZP and ADS5423IPGP use?
The ADS5400IPZP uses a parallel LVDS output interface, which supports high-speed data transfer at its 1-GSPS rate. The ADS5423IPGP uses a parallel CMOS output interface suitable for its 80-MSPS conversion rate.
What are the typical power consumption figures for these devices?
The ADS5400IPZP typically dissipates approximately 2.7 W at 1 GSPS. The ADS5423IPGP typically dissipates approximately 1.1 W at 80 MSPS. The higher power of the ADS5400 reflects its much higher sampling rate and LVDS output interface.
What analog input configurations do these ADCs support?
Both devices accept differential analog input signals. The ADS5400IPZP is designed for high-speed differential inputs at its 1-GSPS rate, and the ADS5423IPGP also uses a differential input architecture. Refer to the respective datasheets for the exact input voltage range and common-mode requirements.
Can the ADS5423IPGP be used as a drop-in replacement for the ADS5400IPZP in an existing design?
No. The two devices differ in package, pin count, resolution, sampling rate, output interface, and power consumption. A direct drop-in replacement is not possible; any substitution would require a complete redesign of the PCB, clocking, and digital interface.