AD7634BCPZRL vs AD7655ACPZRL Comparison
Detailed side-by-side comparison of AD7634BCPZRL by Analog Devices and AD7655ACPZRL by Analog Devices. Compare key specifications, electrical parameters, packaging, lifecycle status, pricing, and availability to determine the best component for your design requirements.
Analog Devices
AD7634BCPZRL - 18-Bit 670kSPS Differential PulSAR ADC | Analog Devices
AD7634BCPZRL ✓ ActiveSpecification Comparison
| Parameter | AD7634BCPZRL | AD7655ACPZRL |
|---|---|---|
| Brand | Analog Devices | Analog Devices |
| Category | ADC/DAC | ADC/DAC |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $36.80 | $11.40 |
| Resolution | 18 bits | — |
| Architecture | SAR (PulSAR) | SAR (Successive Approximation) |
| Number of Channels | 1 differential input | 4 |
| Sampling Rate | 670 kSPS | 1 MSPS (normal mode); 888 kSPS (impulse mode) |
| Input Type | True bipolar differential | — |
| Input Voltage Range (programmable) | ±10 V, 0 to 20 V, 0 to ±20 V, ±40 V (10 V p-p to 40 V p-p) | — |
| Data Interface | Serial (SPI-compatible) or Parallel | — |
| Package | 48-LFCSP-VQ (7x7 mm) with exposed pad | 48-LFCSP-VQ (7x7 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Operating Temperature | -40C to +85C (industrial) | — |
| Internal Reference | Yes, 2.5 V (overdrive capable) | — |
| Internal Clock | Yes | — |
| Packaging | Tape & Reel (RL) | Tape & Reel (TR) |
| RoHS Status | Compliant | — |
| 1ku List Price (starting) | $48.81 (as of 2026-10-12) | — |
| Differential Nonlinearity (DNL) | [DATA_NEEDED: DNL spec from datasheet Rev. B] | — |
| Integral Nonlinearity (INL) | [DATA_NEEDED: INL spec from datasheet Rev. B] | — |
| SNR (typical) | [DATA_NEEDED: SNR spec from datasheet Rev. B] | — |
| Power Dissipation (typical at 670 kSPS) | [DATA_NEEDED: power spec from datasheet Rev. B] | — |
| Number of Bits | — | 16 |
| Number of Inputs | — | 2 / 4 (multiplexed, dual track-and-hold) |
| Analog Input Range | — | +/-10 V, 0 V to 5 V, +/-5 V (bipolar & unipolar) |
| Digital Interface | — | Parallel + Serial (SPI/QSPI/MICROWIRE/DSP-compatible) |
| Track-and-Hold Amplifiers | — | 2 (dual, simultaneous sampling) |
| Pipeline Delay | — | None (SAR architecture) |
| Operating Temperature Range | — | -40C to +85C |
| Analog Supply Voltage (AVDD) | — | 5 V |
| Digital Supply Voltage (DVDD) | — | 5 V / 3 V (logic-flexible) |
| MSL Level | — | [DATA_NEEDED: MSL level] |
| Converter Family | — | PulSAR (iCMOS process) |