ADS8548SRGCR
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 3 (168 Hours) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 64-VFQFN Exposed Pad |
| Mfr | Texas Instruments |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 125°C |
| Input Type | Single Ended |
| Configuration | S/H-ADC |
| Supplier Device Package | 64-VQFN (9x9) |
| Number of Inputs | 8 |
| Number of Bits | 14 |
| Number of A/D Converters | 1 |
| Architecture | SAR |
| Reference Type | External, Internal |
| Data Interface | SPI, Parallel |
| Sampling Rate (Per Second) | 600k |
| Voltage - Supply, Analog | 5V |
| Voltage - Supply, Digital | 2.7V ~ 5.5V |
| Ratio - S/H:ADC | 1:1 |
| Features | Simultaneous Sampling |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | ADS8548 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,000 |
| ECCN | 3A991C3 |
| HTSUS | 8542.39.0001 |
ADS8548SRGCR 14-Bit, 8-Channel, Simultaneous-Sampling SAR ADC 64-VQFN
The ADS8548SRGCR is a high-performance, 14-bit, 8-channel SAR ADC featuring true bipolar inputs and simultaneous sampling capability. Housed in a compact 64-VQFN package with an exposed thermal pad, this device operates across an extended industrial temperature range of –40°C to +125°C. It is a member of the pin- and software-compatible ADS85x8 family, which includes 12-bit, 14-bit, and 16-bit variants, allowing flexible system upgrades without PCB redesign. The ADC supports both parallel and serial (SPI) data interfaces, offers a programmable internal reference buffer, and handles analog input signals up to ±12V, making it a versatile solution for precision multi-channel data acquisition.
The ADS8548SRGCR delivers 14-bit resolution with a maximum per-channel sampling rate of 600 kSPS in parallel mode (450 kSPS in serial mode), enabling high-speed, simultaneous acquisition across all eight channels. Its outstanding AC performance includes an 85dB signal-to-noise ratio (SNR) and –91dB total harmonic distortion (THD), ensuring high-fidelity signal conversion for demanding measurement applications. The device features a programmable, buffered internal reference with an output range of 0.5V to 2.5V (or 0.5V to 3.0V), accommodating a wide variety of input signal amplitudes. True bipolar inputs support differential signaling with input ranges up to ±12V, eliminating the need for external level-shifting circuitry. The flexible parallel or serial interface options, along with daisy-chain support, simplify integration with microcontrollers, DSPs, and FPGAs. Additionally, the device is fully specified for operation over the –40°C to +125°C temperature range, ensuring reliable performance in harsh industrial environments.
For design flexibility and sourcing alternatives, the following industrial ADC offer similar functionality:
1. ADS8548SRGCT – Same 14-bit, 8-channel simultaneous-sampling bipolar-input ADC as the SRGCR variant, offered in tape-and-reel packaging with identical pinout and electrical characteristics for drop-in replacement.
2. ADS8528SRGCR – 12-bit, 8-channel member of the same pin- and software-compatible family, offering a higher sampling rate of 650 kSPS (parallel) for applications where lower resolution suffices.
3. ADS8568SRGCR – 16-bit, 8-channel version providing superior 91.5dB SNR and –94dB THD for ultra-high-precision measurement requirements.
4. AD7606BBSTZ – 16-bit, 8-channel simultaneous-sampling SAR ADC from Analog Devices with bipolar input range and similar parallel/serial interface options.
