Product Summary

The LM4040A25IDBZT is a shunt voltage reference which is versatile, easy-to-use reference that caters to a vast array of applications. The 2-pin fixed-output device requires no external capacitors for operation and is stable with all capacitive loads. Additionally, the LM4040A25IDBZT offers low dynamic impedance, low noise, and low temperature coefficient to ensure a stable output voltage over a wide range of operating currents and temperatures. The LM4040A25IDBZT uses fuse and Zener-zap reverse breakdown voltage trim during wafer sort to offer four output voltage tolerances, ranging from 0.1% (max) for the A grade to 1% (max) for the D grade. Thus, a great deal of flexibility is offered to designers in choosing the best cost-to performance ratio for their applications. Packaged in space-saving SC-70 and SOT-23-3 packages and requiring a minimum current of 45 mA (typ), the LM4040A25IDBZT also is ideal for portable applications of Data-Acquisition Systems, Power Supplies and Power-Supply Monitors, Instrumentation and Test Equipment, Process Controls, Precision Audio, Automotive Electronics, Energy Management and Battery-Powered Equipment.

Parametrics

LM4040A25IDBZT absolute maximum ratings: (1)VZ Reverse breakdown voltage IZ = 100 μA 25℃: 2.5V; (2)△VZ Reverse breakdown voltage tolerance IZ = 100 μA: -2.5 to 2.5mV; (3)IZ,min Minimum cathode current: 75μA; (4)Average temperature coefficient of reverse breakdown voltage: IZ = 1 mA ±15ppm/℃, IZ = 100 μA ±15ppm/℃, IZ = 10 mA ±20ppm/℃; (5)Reverse breakdown voltage change with cathode current change: IZ,min < IZ < 1 mA: 0.3 to 0.8mV, 1 mA < IZ < 15 mA: 2.5 to 6mV; (6)ZZ Reverse dynamic impedance IZ = 1 mA, f = 120 Hz, IAC = 0.1 IZ: 0.3 to 0.9Ω; (7)eN Wideband noise IZ = 100 μA, 10 Hz ≤ f ≤ 10 kHz: 35 μVRMS; (8)Long-term stability of reverse breakdown voltage t = 1000 h, TA = 25℃ ± 0.1℃, IZ = 100 μA: 120 ppm ; (9)VHYST Thermal hysteresis △TA = –40 ℃ to 125℃: 0.08 %; (10)IZ Continuous cathode current: –10 to 25 mA; (11)θJA Package thermal impedance: 206℃/W; (12)TJ Operating virtual junction temperature: 150℃; (13)Tstg Storage temperature range: –65 to 150℃.

Features

LM4040A25IDBZT features: (1)Output Voltage of 2.5 V; (2)Tight Output Tolerances and Low Temperature Coefficient: Max 0.1%, 100 ppm/℃ A Grade; (3)Low Output Noise: 35 μVRMS Typ; (4)Wide Operating Current Range: 45 μA Typ to 15 mA; (5)Stable With All Capacitive Loads; No Output Capacitor Required; (6)Available in Extended Temperature Range: -40℃ to 125℃.

Diagrams

LM4040A25IDBZT block diagram

Image Part No Mfg Description Data Sheet Download Pricing
(USD)
Quantity
LM4040A25IDBZT
LM4040A25IDBZT

Texas Instruments

Voltage & Current References 2.5V Precision Mcrpwr Shunt .1% acc

Data Sheet

0-1: $1.76
1-25: $1.41
25-100: $1.30
100-250: $1.26
LM4040A25IDBZTG4
LM4040A25IDBZTG4

Texas Instruments

Voltage & Current References 2.5V Precision Mcrpwr Shunt .1% acc

Data Sheet

0-1: $1.72
1-25: $1.41
25-100: $1.28
100-250: $1.18