Part A
ADS5263IRGCT
Texas Instruments
- Lifecycle
- Active
- Stock
- 4631 PCS
- Package
- VQFN-64
- Series
- Acquisição de dados - Analogo para Convertedores Digitais (ADC)
Replacement verdict
Compatible functional replacement candidate
The ADS5282IRGCR is a viable functional replacement candidate for the ADS5263IRGCT in applications where the higher 16-bit resolution of the ADS5263 is not mandatory. Both devices share the same 64-pin VQFN package, 14-bit/16-bit high-speed ADC architecture, and LVDS parallel output interface, enabling a common board layout. Designers must validate the reduced dynamic range (14-bit vs. 16-bit), the differing sample rate, and the lower power consumption of the ADS5282 against their system requirements before committing to the substitution.
Resolution
Validation required
Sample Rate
Validation required
Package Type
High match
Output Interface
High match
Parts at a glance
Part B
ADS5282IRGCR
Texas Instruments
- Lifecycle
- Active
- Stock
- 4760 PCS
- Package
- VFQFN-64
- Series
- Acquisição de dados - Analogo para Convertedores Digitais (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 | ADS5282IRGCR | Why it matters |
|---|---|---|---|
| Resolution | 16 bit | 12 bit | Resolution determines the dynamic range and SNR achievable; a 16-bit ADC provides significantly finer quantization than a 12-bit ADC, so these parts are not functionally interchangeable in precision-sensitive designs. |
| Number of Channels | 4 | 8 | Channel count defines how many independent signal inputs can be digitized simultaneously; the ADS5282 handles twice the channel density, affecting system architecture and board layout. |
| Maximum Sample Rate | 100 MSPS | 65 MSPS | Sample rate sets the maximum input bandwidth that can be captured; the higher rate of the ADS5263 supports wider-band signals, so substitution changes the usable signal bandwidth. |
| Interface Type | Serial LVDS | Serial LVDS | The output interface must match the receiving FPGA/ASIC; both use serial LVDS, but lane count and framing differ due to channel count and resolution, requiring different receiver logic. |
| Supply Voltage | 1.8 V (analog and digital) | 1.8 V (analog and digital) | Supply voltage must match the board power rails; both operate from 1.8 V, so power delivery is compatible, though current draw differs with channel count and speed. |
| Package | 64-pin VQFN (RGC) | 64-pin VQFN (RGC) | Package footprint and pinout determine PCB compatibility; both share the same 64-pin VQFN body, but pin functions differ, so a drop-in replacement is not possible without layout changes. |
| Operating Temperature Range | -40°C to +85°C | -40°C to +85°C | The industrial temperature range must cover the application environment; both meet the same range, so thermal suitability is equivalent. |
| Power Consumption (typical) | Approx. 1.0 W total | Approx. 0.9 W total | Power dissipation affects thermal design and supply sizing; the ADS5263 draws more power due to higher resolution and sample rate, which may require different thermal management. |
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Full specification comparison
Use manufacturer datasheets as the final authority.
| Specification | ADS5263IRGCT | ADS5282IRGCR |
|---|---|---|
| Supplier | - | Texas Instruments |
| Part Status | Active | Active |
| Number of Bits | 16 | 12 |
| Sampling Rate(Per Second) | 100M | 65M |
| Number of Inputs | 4 | 8 |
| Input Type | Differential | Differential |
| Data Interface | LVDS - Serial | LVDS - Serial, SPI |
| 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 | 3V ~ 3.6V |
| 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 ADS5282IRGCR?
The ADS5263IRGCT is a quad-channel, 16-bit analog-to-digital converter (ADC) with a maximum sampling rate of 100 MSPS, while the ADS5282IRGCR is an octal-channel, 12-bit ADC with a maximum sampling rate of 65 MSPS. The ADS5263 offers higher resolution and a faster per-channel conversion rate, whereas the ADS5282 provides twice the channel density with lower resolution and speed.
Are the ADS5263IRGCT and ADS5282IRGCR pin-to-pin compatible?
No. The ADS5263IRGCT is supplied in a 64-pin VQFN (RGC) package, and the ADS5282IRGCR is supplied in a 64-pin VQFN (RGC) package as well, but the two devices have different pin functions and channel configurations. The ADS5263 provides four channels while the ADS5282 provides eight channels, so the pin assignments and signal routing differ. They cannot be treated as drop-in replacements.
What are the input signal interface differences between the two ADCs?
Both devices use differential input architectures. The ADS5263IRGCT provides differential analog inputs with a specified full-scale input range, while the ADS5282IRGCR also uses differential inputs but with its own full-scale range specification. The input common-mode requirements and termination networks differ between the two devices, so the analog front-end must be redesigned when switching between them.
How do the output interfaces of the ADS5263IRGCT and ADS5282IRGCR differ?
The ADS5263IRGCT provides parallel CMOS/LVDS output options for its 16-bit conversion results, while the ADS5282IRGCR provides serialized LVDS outputs for its 12-bit conversion results. The output data format, bit width, and interface type differ, so the receiving FPGA or DSP interface logic must be adapted accordingly.
What are the power consumption characteristics of each device?
The ADS5263IRGCT and ADS5282IRGCR each have device-specific power consumption specifications that depend on sampling rate, channel count, and output interface mode. The ADS5282, with eight channels at 12-bit resolution, and the ADS5263, with four channels at 16-bit resolution, draw different supply currents. Designers should consult the respective manufacturer datasheets for exact power figures under their intended operating conditions.
Can the ADS5263IRGCT and ADS5282IRGCR operate from the same supply voltages?
Both devices use a 3.3 V analog supply and a 1.8 V to 3.3 V digital supply, but the exact recommended supply rails and tolerances are specified separately in each datasheet. The supply decoupling and sequencing requirements differ, so the power delivery network should be verified against the specific device datasheet before substitution.
Which device is better suited for high-channel-count, lower-resolution applications?
The ADS5282IRGCR is better suited for high-channel-count applications requiring lower resolution, as it integrates eight 12-bit channels at up to 65 MSPS in a single package. The ADS5263IRGCT is oriented toward applications needing four channels of higher 16-bit resolution at up to 100 MSPS. The choice depends on the required channel density, resolution, and sampling rate of the target system.