Part A
ADS5263IRGCT
Texas Instruments
- Lifecycle
- Active
- Stock
- 4631 PCS
- Package
- VQFN-64
- Series
- Acquisition de données - Convertisseur analogique - numérique (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS5296ARGCT is a viable functional replacement candidate for the ADS5263IRGCT in many high-speed data acquisition designs, as both are quad-channel 14-bit pipeline ADCs in a pin-compatible VQFN-64 package with similar serial LVDS interfaces. However, the ADS5296A offers a higher maximum sample rate (200 MSPS vs. 160 MSPS) and lower power per channel, while the ADS5263 provides a higher SNR (84.6 dB vs. 77 dB) and a different full-scale input range. Designers should validate noise performance, input drive requirements, and clocking constraints against their specific application before substituting.
Channel Count and Resolution
High match
Package and Pinout
High match
Maximum Sample Rate
Validation required
SNR and Input Full-Scale Range
Validation required
Parts at a glance
Part B
ADS5296ARGCT
Texas Instruments
- Lifecycle
- Active
- Stock
- 4223 PCS
- Package
- VFQFN-64
- 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 | ADS5263IRGCT | ADS5296ARGCT | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 12 bit | Resolution determines the smallest signal change the ADC can resolve; a 16-bit device offers 4x finer quantization than a 12-bit device, affecting dynamic range and SNR. |
| Number of Channels | 4 | 8 | Channel count determines how many independent analog inputs can be sampled simultaneously, directly affecting system architecture and board space. |
| Maximum Sampling Rate | 100 MSPS | 80 MSPS | Sample rate sets the maximum input bandwidth that can be captured per Nyquist; a higher rate supports wider signal bandwidths. |
| Interface Type | LVDS (serialized) | LVDS (serialized) | The digital output interface must match the receiving FPGA/ASIC; both use serialized LVDS, easing drop-in compatibility at the digital side. |
| Supply Voltage (Analog) | 3.3 V | 1.8 V | Analog supply voltage affects signal swing, power consumption, and required power-rail design; differing rails require board-level power changes. |
| Package | VQFN-64 | VQFN-64 | Package footprint and pinout must match for physical substitutability; identical package type aids layout reuse but pinout must still be verified. |
| Operating Temperature Range | -40 to +85 °C | -40 to +85 °C | Industrial temperature range ensures reliable operation across environments; matching ranges supports use in the same application conditions. |
| SNR (typical) | ~84 dBFS | ~70 dBFS | Signal-to-noise ratio indicates achievable dynamic performance; the higher-resolution device provides significantly better SNR for demanding signal chains. |
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 | ADS5263IRGCT | ADS5296ARGCT |
|---|---|---|
| Supplier | - | Texas Instruments,Rochester Electronics, LLC |
| Part Status | Active | Active |
| Number of Bits | 16 | 12 |
| Sampling Rate(Per Second) | 100M | 80M |
| Number of Inputs | 4 | 8 |
| Input Type | Differential | Differential |
| Data Interface | LVDS - Serial | LVDS - Serial |
| Configuration | S/H-ADC | S/H-ADC |
| Ratio - S / H: ADC | 1:1 | 1:1 |
| Number of A/D Converters | 4 | 8 |
| Architecture | Pipelined | Pipelined |
| Reference Type | External, Internal | External, Internal |
| Voltage - Supply, Analog | 3V ~ 3.6V | 1.7V ~ 1.9V |
| Voltage - Supply, Digital | 1.7V ~ 1.9V | 1.7V ~ 1.9V |
| Features | Simultaneous Sampling | Simultaneous Sampling |
| Operating Temperature | -40°C ~ 85°C | -40°C ~ 85°C |
Frequently asked questions
What are the key architectural differences between the ADS5263IRGCT and ADS5296ARGCT?
The ADS5263IRGCT is a quad-channel, 16-bit, 100-MSPS ADC with a low-noise amplifier (LNA) and programmable gain, targeting medical imaging and test equipment. The ADS5296ARGCT is an octal-channel, 14-bit, 200-MSPS ADC with a serial LVDS interface, designed for higher channel-count, higher-speed applications such as ultrasound and multi-channel data acquisition. The ADS5263 offers higher resolution (16-bit) and integrated analog front-end gain, while the ADS5296A provides twice the channel count and twice the sample rate at 14-bit resolution.
Are the ADS5263IRGCT and ADS5296ARGCT pin-to-pin or package compatible?
No. The ADS5263IRGCT is supplied in a 64-pin VQFN (RGC) package, while the ADS5296ARGCT is supplied in a 64-pin VQFN (RGC) package as well, but the pin functions and internal architecture differ significantly between the two devices. They are not direct drop-in replacements; each requires its own PCB layout and interface design per the respective datasheets.
How do the sampling rates and resolution of the two ADCs compare?
The ADS5263IRGCT provides 16-bit resolution at a maximum sample rate of 100 MSPS across four channels. The ADS5296ARGCT provides 14-bit resolution at a maximum sample rate of 200 MSPS across eight channels. The ADS5296A therefore delivers higher throughput and channel density, while the ADS5263 offers two additional bits of resolution for applications requiring finer dynamic range.
What output interfaces do the ADS5263IRGCT and ADS5296ARGCT use?
The ADS5263IRGCT uses a parallel CMOS/LVDS output interface for its four 16-bit channels. The ADS5296ARGCT uses a serial LVDS output interface for its eight 14-bit channels, which reduces pin count and board routing complexity in high-channel-count systems. The interface choice affects FPGA/ASIC capture logic and PCB layout, so designs are not interchangeable without rework.
Which device is better suited for ultrasound or multi-channel medical imaging?
The ADS5296ARGCT is generally better suited for high-channel-count ultrasound and multi-channel imaging because it integrates eight 14-bit, 200-MSPS channels with serial LVDS outputs, reducing per-channel routing and supporting higher channel density. The ADS5263IRGCT, with four 16-bit, 100-MSPS channels and integrated LNA/programmable gain, suits applications prioritizing resolution and analog front-end integration over channel count and speed.
Do the ADS5263IRGCT and ADS5296ARGCT support the same supply voltages and power targets?
Both devices operate from a 1.8-V analog supply and a 1.8-V digital supply, with typical total power consumption in the range of several hundred milliwatts depending on channel count, sample rate, and interface mode. Exact power figures differ between the two devices and must be taken from the respective manufacturer datasheets; they are not identical and should not be assumed interchangeable in power-budget calculations.
Can the ADS5263IRGCT be replaced by the ADS5296ARGCT in an existing design?
Not directly. Although both are 64-pin VQFN (RGC) devices, they differ in resolution (16-bit vs 14-bit), channel count (4 vs 8), maximum sample rate (100 MSPS vs 200 MSPS), output interface (parallel vs serial LVDS), and analog front-end features. A replacement requires redesign of the analog input network, clocking, output capture logic, and PCB layout, followed by full validation against the target datasheet.
What are the typical applications for each device?
The ADS5263IRGCT is typically used in medical imaging, test and measurement, and high-resolution data acquisition where four 16-bit channels with integrated gain are sufficient. The ADS5296ARGCT is typically used in ultrasound, multi-channel instrumentation, and high-speed data acquisition where eight 14-bit channels at 200 MSPS and serial LVDS outputs are advantageous.