The AD7152/AD7153 are 12-bit sigma-delta (Σ-Δ) capacitance-to-digital converters (CDCs). The capacitance to be measured is connected directly to the device inputs. The architecture features inherent high resolution (12-bit no missing codes, up to 12-bit effective resolution) and high linearity (±0.05%). The AD7152/ AD7153 have four capacitance input ranges per operation mode, ±0.25 pF to ±2 pF in differential mode and 0.5 pF to 4 pF in single-ended mode.
The AD7152/AD7153 can accept up to 5 pF common-mode capacitance (not changing), which can be balanced by a programmable on-chip, digital-to-capacitance converter (CAPDAC).
The AD7153 has one capacitance input channel, while the AD7152 has two channels. Each channel can be configured as single-ended or differential. The AD7152/AD7153 are designed for floating capacitive sensors.
The AD7152/AD7153 have a 2-wire, I2C-compatible serial interface. Both devices can operate with a single power supply from 2.7 V to 3.6 V. They are specified over the temperature range of −40°C to +85°C and are available in a 10-lead MSOP.
Applications
Automotive, industrial, and medical systems for
Features and Benefits
| Analog to Digital ConvertersBuilding Technology
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| Document | note |
| AD7152/AD7153: 12-Bit Capacitance-to-Digital Converter Data Sheet (Rev. A) | PDF 452.43 K |
| Document | note |
| Part Number | Package | Packing Qty | Temp Range | Price 100-499 | Price 1000+ | RoHS |
|---|---|---|---|---|---|---|
| AD7152BRMZ Last Time Buy | 10 ld MSOP | OTH 50 | -40 to 85C | 2.33 | 1.97 | Y |
| AD7152BRMZ-REEL Last Time Buy | 10 ld MSOP | REEL 3000 | -40 to 85C | 0 | 1.97 | Y |
| Part Number | Description | Price | RoHS |
|---|---|---|---|
| EVAL-AD7152EBZ | Evaluation Board | 59 | Y |
