AD7655ACPZRL vs AD7634BCPZRL Comparison
Detailed side-by-side comparison of AD7655ACPZRL by Analog Devices and AD7634BCPZRL 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 | AD7655ACPZRL | AD7634BCPZRL |
|---|---|---|
| Brand | Analog Devices | Analog Devices |
| Category | ADC/DAC | ADC/DAC |
| Lifecycle Status | Active | Active |
| Stock Status | In Stock | In Stock |
| Unit Price (USD) | $11.40 | $36.80 |
| Number of Bits | 16 | — |
| Architecture | SAR (Successive Approximation) | SAR (PulSAR) |
| Number of Inputs | 2 / 4 (multiplexed, dual track-and-hold) | — |
| Sampling Rate | 1 MSPS (normal mode); 888 kSPS (impulse mode) | 670 kSPS |
| Analog Input Range | +/-10 V, 0 V to 5 V, +/-5 V (bipolar & unipolar) | — |
| Digital Interface | Parallel + Serial (SPI/QSPI/MICROWIRE/DSP-compatible) | — |
| Number of Channels | 4 | 1 differential input |
| 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) | — |
| Package | 48-LFCSP-VQ (7x7 mm) with exposed pad | 48-LFCSP-VQ (7x7 mm) with exposed pad |
| Mounting Type | Surface Mount | Surface Mount |
| Packaging | Tape & Reel (TR) | Tape & Reel (RL) |
| MSL Level | [DATA_NEEDED: MSL level] | — |
| Converter Family | PulSAR (iCMOS process) | — |
| Resolution | — | 18 bits |
| 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 |
| Operating Temperature | — | -40C to +85C (industrial) |
| Internal Reference | — | Yes, 2.5 V (overdrive capable) |
| Internal Clock | — | Yes |
| 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] |