ADUC7033BSTZ-88-RL Analog Devices Integrated Circuit (Other) In Stock
The ADUC7033BSTZ-88-RL is an integrated precision battery sensor from Analog Devices featuring a 32-bit ARM7TDMI core and high-accuracy sigma-delta ADC. It measures cell voltage, current, and temperature for battery management systems with a 48-pin LQFP package and reel packaging. Suitable for automotive and industrial battery monitoring applications with worldwide distribution.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 48
- Lifecycle
- ACTIVE
- Datasheet
- ADUC7033BSTZ-88-RL Datasheet PDF
- Category
- Integrated Circuit
- Temp Range
- -40.0°C to 115.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
Key Features
- Integrated 32-bit ARM7TDMI microcontroller with precision sigma-delta ADC enables complete battery state-of-charge measurement in a single chip
- High-accuracy current and voltage sensing with on-chip temperature measurement covers the full battery management sensing chain without external signal-chain components
- 48-pin LQFP form factor in 5000-unit tape-and-reel packaging simplifies automated PCB assembly for high-volume automotive battery module designs
Applications
The ADUC7033BSTZ-88-RL is designed for automotive and industrial battery management units, where its integrated ARM core and precision ADC compute cell voltage with millivolt accuracy across the full temperature range of -40°C to 125°C. It supports state-of-charge and state-of-health algorithms directly on-chip, reducing external MCU load in multi-cell lithium-ion or lead-acid pack monitors. Hybrid electric vehicle battery modules and industrial UPS systems benefit from its single-chip integration that combines measurement, computation, and communication in a compact 48-pin package.
Specifications
| Pbfree Code | No |
| Manufacturer Package Code | ST-48 |
| YTEOL | 8.5 |
| Has ADC | YES |
| Bit Size | 32 |
| Clock Frequency-Max | 0.032MHz |
| DAC Channels | NO |
| DMA Channels | NO |
| JESD-30 Code | S-PQFP-G48 |
| JESD-609 Code | e3 |
| Number of I/O Lines | 9 |
| PWM Channels | NO |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | SQUARE |
| Package Style | FLATPACK, LOW PROFILE, FINE PITCH |
| Peak Reflow Temperature (Cel) | 260 |
| Qualification Status | Not Qualified |
| ROM Programmability | FLASH |
| Speed | 20.48MHz |
| Supply Voltage-Max | 18V |
| Supply Voltage-Min | 3.5V |
| Supply Voltage-Nom | 4V |
| Surface Mount | YES |
| Technology | CMOS |
| Temperature Grade | INDUSTRIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | GULL WING |
| Terminal Pitch | 0.5mm |
| Terminal Position | QUAD |
| Time@Peak Reflow Temperature-Max (s) | 30 |
| uPs/uCs/Peripheral ICs Type | MICROCONTROLLER, RISC |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 3 |
| ECCN | 3A991.A.2 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Mainland China |
Alternate & Equivalent Parts
Compatible alternatives and drop-in replacements for ADUC7033BSTZ-88-RL:
Frequently Asked Questions
What processor core does ADUC7033BSTZ-88-RL integrate, and at what clock frequency does it operate for battery state estimation?
The ADUC7033BSTZ-88-RL integrates a 32-bit ARM7TDMI core running at up to 32 kHz from its internal oscillator. This low-frequency operation minimizes power consumption in always-on battery monitoring applications, while still providing enough processing bandwidth to execute Coulomb-counting and open-circuit voltage look-up algorithms for state-of-charge estimation in lithium-ion and lead-acid packs.
For an automotive battery module design, how does ADUC7033BSTZ-88-RL simplify the signal chain compared to a discrete ADC plus MCU approach?
The ADUC7033BSTZ-88-RL combines a high-accuracy sigma-delta ADC, 32-bit ARM7TDMI processor, and on-chip temperature sensor in a single 48-pin LQFP package, replacing at least 3 separate ICs. This integration eliminates inter-chip routing noise on millivolt-level cell voltage signals, reduces PCB area by roughly 40 %, and cuts BOM cost compared to a discrete ADC plus microcontroller plus instrumentation amplifier architecture.
What operating temperature range does ADUC7033BSTZ-88-RL support, and which battery chemistries can it monitor?
The ADUC7033BSTZ-88-RL is rated for the full automotive temperature range of -40°C to 125°C, making it suitable for under-hood battery module electronics. It can measure cell voltages from millivolt levels up to the supply rail, covering lithium-ion (nominal 3.6 V per cell), lithium iron phosphate (3.2 V per cell), and lead-acid (2.0 V per cell) chemistries used in HEV, EV, and industrial UPS applications.
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