LT1034BCZ-1.2#PBF Analog Devices Integrated Circuit (Other) In Stock
LT1034BCZ-1.2#PBF is a precision two-terminal 1.2 V voltage reference from Analog Devices with 20 ppm/°C maximum temperature coefficient, an auxiliary 7 V reference output, and a TO-92-3 package for accurate low-voltage ADC and DAC bias circuits. From $1.75, in stock, worldwide shipping.
- Manufacturer
- Analog Devices
- Package
- Other
- Pin Count
- 3
- Lifecycle
- ACTIVE
- Datasheet
- LT1034BCZ-1.2#PBF Datasheet PDF
- Category
- Integrated Circuit
- Price
- From $4.3200(MOQ 19)
- Temp Range
- ?°C to 70.0°C
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of LT1034BCZ-1.2#PBF?
- Precise 1.2 V two-terminal output with 20 ppm/°C maximum temperature coefficient for stable ADC and DAC reference applications
- Auxiliary 7 V reference output provides a second independent precision voltage on the same TO-92-3 package, reducing BOM complexity
- Two-terminal shunt configuration simplifies circuit design with no separate enable or power pins required
- Low-voltage 1.2 V reference enables direct use with 1.8 V and 3.3 V supply ADCs without resistive dividers
- Maximum output voltage of 1.245 V ensures tight initial accuracy for precision measurement and calibration circuits
What is LT1034BCZ-1.2#PBF used for?
The LT1034BCZ-1.2#PBF serves as a precision reference for 10-bit to 16-bit ADC and DAC circuits in data acquisition systems, industrial process controllers, and portable instrumentation where stable 1.2 V references are required over temperature. Its 20 ppm/°C maximum temperature drift ensures less than 1 mV reference shift across a -40°C to +85°C industrial temperature range, maintaining measurement accuracy without external trimming. The auxiliary 7 V output makes it uniquely versatile for designs requiring dual reference levels from a single 3-pin TO-92-3 package.
What are the specifications of LT1034BCZ-1.2#PBF?
| Pbfree Code | No |
| Manufacturer Package Code | 05-08-1410 |
| YTEOL | 10 |
| Additional Feature | ALSO CONTAINS AN AUXILIARY REFERENCE OF 7V |
| Analog IC - Other Type | TWO TERMINAL VOLTAGE REFERENCE |
| JESD-30 Code | O-PBCY-T3 |
| JESD-609 Code | e3 |
| Number of Functions | 1 |
| Number of Outputs | 1 |
| Output Voltage-Max | 1.245V |
| Output Voltage-Min | 1.205V |
| Output Voltage-Nom | 1.225V |
| Package Body Material | PLASTIC/EPOXY |
| Package Shape | ROUND |
| Package Style | CYLINDRICAL |
| Qualification Status | Not Qualified |
| Supply Current-Max (Isup) | 0.02mA |
| Surface Mount | NO |
| Technology | BIPOLAR |
| Temp Coef of Voltage-Max | 20ppm/°C |
| Temperature Grade | COMMERCIAL |
| Terminal Finish | Matte Tin (Sn) - annealed |
| Terminal Form | THROUGH-HOLE |
| Terminal Position | BOTTOM |
| Trim/Adjustable Output | NO |
| ## LT1034BCZ-1.2#PBF Alternates Showing results | Image |
| Package | Other |
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
| Moisture Sensitivity Level | MSL 1 |
| ECCN | EAR99 |
| HTS Code | 8542.39.00.01 |
| Country of Origin | Philippines |
Where can I find the LT1034BCZ-1.2#PBF datasheet?
LT1034BCZ-1.2#PBF Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for LT1034BCZ-1.2#PBF?
Compatible alternatives and drop-in replacements for LT1034BCZ-1.2#PBF:
suggested
suggested
suggested
suggested
Frequently Asked Questions
How does the LT1034BCZ-1.2#PBF's 20 ppm/°C temperature coefficient affect ADC accuracy across a -40°C to +85°C range?
With a maximum temperature coefficient of 20 ppm/°C, the LT1034BCZ-1.2#PBF introduces a worst-case reference drift of 20 ppm × 125°C = 2500 ppm (2.5 mV) over a -40°C to +85°C range. For a 12-bit ADC with a 1.2 V reference, one LSB equals approximately 293 µV, so the 2.5 mV maximum drift corresponds to about 8.5 LSB worst-case error — well within the acceptable budget for most industrial data acquisition systems that perform periodic field calibration.
What unique advantage does the LT1034BCZ-1.2#PBF's auxiliary 7 V output provide in mixed-signal circuit designs?
The auxiliary 7 V reference output on the LT1034BCZ-1.2#PBF allows a designer to derive both a low-voltage 1.2 V reference for ADC/DAC circuits and a higher 7 V precision bias for op-amp gain networks, MOSFET gate drive offset circuits, or analog multiplexer supply rails from a single TO-92-3 component. This dual-output capability eliminates a separate 7 V reference IC, reducing BOM by 1 part and saving PCB area in precision analog front-end designs.
When is the LT1034BCZ-1.2#PBF a better reference choice than a bandgap reference at 2.5 V for low-supply ADC circuits?
The LT1034BCZ-1.2#PBF's 1.2 V output is compatible with ADCs powered from 1.8 V or 3.3 V supplies where a 2.5 V reference would exceed the input range or require additional buffering. For 12-bit SAR ADCs with 1.8 V analog supply, the 1.2 V reference operates with over 600 mV of headroom, enabling full-scale operation without a level-shifting buffer amplifier. This simplifies the reference circuit to a single shunt resistor and the TO-92-3 device, versus the additional op-amp circuit a 2.5 V reference would need.
How does the two-terminal shunt architecture of the LT1034BCZ-1.2#PBF simplify PCB layout compared to three-terminal series references?
As a two-terminal shunt reference, the LT1034BCZ-1.2#PBF requires only a single series resistor to set operating current, with no separate output enable, power, or trim pins. The TO-92-3 package occupies under 10 mm² of PCB footprint, and the shunt connection eliminates the need for a dedicated output capacitor or load resistor to maintain stability — typically required with three-terminal series references. This simplicity reduces the passive component count by 2–3 parts in compact ADC reference circuits.
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About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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