仕様
| 属性 | 値 |
| Package / Case | Tape & Reel (TR),Cut Tape (CT) |
| Part Status | Active |
| Reference Type | Shunt |
| Output Type | Fixed |
| Voltage - Output (Min/Fixed) | 2.048V |
| Current - Output | 15 mA |
| Tolerance | ±1% |
| Temperature Coefficient | 150ppm/°C |
| Noise - 10 Hzto10k Hz | 35µVrms |
| Current - Cathode | 80 µA |
| Operating Temperature | -40°C ~ 85°C (TA) |
| Mounting Type | Surface Mount |
概要
Description
LM4040D20IDBZR is a fixed shunt voltage reference from TI’s LM4040 family. The “D20” denotes a 2.0 V nominal output.
Key points:
- Type: fixed 2.0 V shunt reference (two-terminal style device, used like a zener with regulation).
- Package/grade: SOT-23 (three-lead) RoHS, industrial-temp variant (IDBZR suffix).
- Operating range: biased from a few tens of microamps up to a few milliamps (typical bias around 1 mA for best accuracy).
- Characteristics: low dynamic impedance and good temperature stability for a reference in precision circuits.
- Applications: voltage reference for ADCs/DACs, instrumentation, microcontroller supply references, and any circuit needing a stable 2.0 V reference.
- How to use: connect the anode to ground and the cathode to the supply through a current-setting resistor; the device clamps the load at about 2.0 V.
In short, it’s a compact, industrial-grade 2.0 V shunt reference suitable for precise voltage-reference needs.
Key points:
- Type: fixed 2.0 V shunt reference (two-terminal style device, used like a zener with regulation).
- Package/grade: SOT-23 (three-lead) RoHS, industrial-temp variant (IDBZR suffix).
- Operating range: biased from a few tens of microamps up to a few milliamps (typical bias around 1 mA for best accuracy).
- Characteristics: low dynamic impedance and good temperature stability for a reference in precision circuits.
- Applications: voltage reference for ADCs/DACs, instrumentation, microcontroller supply references, and any circuit needing a stable 2.0 V reference.
- How to use: connect the anode to ground and the cathode to the supply through a current-setting resistor; the device clamps the load at about 2.0 V.
In short, it’s a compact, industrial-grade 2.0 V shunt reference suitable for precise voltage-reference needs.
Features
Key features of LM4040D20IDBZR (2.0V fixed shunt reference):
- Fixed 2.0 V shunt voltage reference
- Very low dynamic impedance for stable regulation
- Excellent line and load regulation
- Low noise and low temperature drift
- Wide operating current range (micropower to moderate drive; simple resistor bias)
- Simple 3-pin device; no external op-amp needed
- Small package: IDBZR (compact 3-pin package suitable for tight layouts)
- Broad operating supply range and -40°C to 125°C industrial temperature range
- RoHS compliant; suitable for precise references in ADCs, power monitors, and compact regulators
Usage note: requires a bias resistor to set the operating current and a supply voltage above the 2.0 V reference.
- Fixed 2.0 V shunt voltage reference
- Very low dynamic impedance for stable regulation
- Excellent line and load regulation
- Low noise and low temperature drift
- Wide operating current range (micropower to moderate drive; simple resistor bias)
- Simple 3-pin device; no external op-amp needed
- Small package: IDBZR (compact 3-pin package suitable for tight layouts)
- Broad operating supply range and -40°C to 125°C industrial temperature range
- RoHS compliant; suitable for precise references in ADCs, power monitors, and compact regulators
Usage note: requires a bias resistor to set the operating current and a supply voltage above the 2.0 V reference.
Pinout
- Pin count: 3 pins (SOT-23-3 package).
- Function: Fixed 2.0 V shunt voltage reference (precision reference diode). Pinout (typical): Pin 1 Anode, Pin 2 Cathode, Pin 3 No Connection (NC).
- Function: Fixed 2.0 V shunt voltage reference (precision reference diode). Pinout (typical): Pin 1 Anode, Pin 2 Cathode, Pin 3 No Connection (NC).
Manufacturer
The LM4040D20IDBZR is manufactured by Texas Instruments (TI). TI is an American multinational semiconductor company that designs and manufactures analog and embedded processing integrated circuits.
Application
LM4040D20IDBZR is a 2.0-V shunt voltage reference. Typical application areas include:
- Precision reference for ADCs/DACs and analog front-ends
- Stable bias/reference for op-amps, comparators, and instrumentation amplifiers
- Battery-powered/portable devices requiring low-power, fixed reference
- Sensor signal conditioning and calibration networks
- Replacement for Zener-based references in regulators and supervisor circuits
Note: used wherever a stable, low-noise voltage reference around 2.0 V is needed.
- Precision reference for ADCs/DACs and analog front-ends
- Stable bias/reference for op-amps, comparators, and instrumentation amplifiers
- Battery-powered/portable devices requiring low-power, fixed reference
- Sensor signal conditioning and calibration networks
- Replacement for Zener-based references in regulators and supervisor circuits
Note: used wherever a stable, low-noise voltage reference around 2.0 V is needed.
Package
SOT-23-3 (3-pin) surface-mount package; Pb-free/RoHS compliant (suffix ZR).
