REF1004C-2.5/2K5

REF1004-2.5 TI | Alldatasheet

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Technical content

1.2V and 2.5V Micropower VOLTAGE REFERENCE

FEATURES

l INITIAL ACCURACY: REF1004-1.2 ±4mV REF1004-2.5 ±20mV l MINIMUM OPERATING CURRENT: REF1004-1.2 10µA REF1004-2.5 20µA l EXCELLENT LONG TERM TEMPERATURE STABILITY l VERY LOW DYNAMIC IMPEDANCE l OPERATES UP TO 20mA l PACKAGE: 8-Lead SOIC International Airport Industrial Park • Mailing Address: PO Box 11400 • Tucson, AZ 85734 • Street Address: 6730 S. Tucson Blvd. • Tucson, AZ 85706 Tel: (520) 746-1111 • Twx: 910-952-1111 • Cable: BBRCORP • Telex: 066-6491 • FAX: (520) 889-1510 • Immediate Product Info: (800) 548-6132 REF1004 NC NC NC Anode Cathode NC Cathode NC Typical Operating Circuit (Top View)

APPLICATIONS

l BATTERY POWERED TEST EQUIPMENT l PORTABLE MEDICAL INSTRUMENTATION l PORTABLE COMMUNICATIONS DEVICES l A/D AND D/A CONVERTERS l NOTEBOOK AND PALMTOP COMPUTERS

DESCRIPTION

The REF1004-1.2 and REF1004-2.5 are two terminal bandgap reference diodes designed for high accuracy with outstanding temperature characteristics at low operating currents. Prior to the introduction of the REF1004 Micropower Voltage References, accuracy and stability specifications could only be attained by expensive screening of standard devices. The REF1004 is a cost effective solution when reference voltage accuracy, low power, and long term temperature sta- bility are required. REF1004 is a drop-in replacement for the LT1004 as well as an upgraded replacement of the LM185/385 series references. The REF1004C is characterized for operation from 0°C to 70°C and the REF1004I is characterized for operation from –40°C to +85°C. The REF1004 is offered in an 8-lead Plastic SOIC package and shipped in anti-static rails or tape and reel. © 1992 Burr-Brown Corporation PDS-1172 Printed in U.S.A. October, 1993 SBVS002

REF1004-1.2 REF1004-2.5 PARAMETER CONDITIONS MIN TYP MAX MIN TYP MAX UNITS AVERAGE TEMPERATURE COEFFICIENT IMIN ≤ IR ≤ 20mA 20 20 ppm/ °C MINIMUM OPERATION CURRENT (3) 81 0 1 2 2 0 µA REVERSE BREAKDOWN IMIN ≤ IR ≤ 1mA 1 1 mV VOLTAGE CHANGE WITH 1.5(3) 1.5(3) CURRENT 1mA ≤ IR ≤ 20mA 10 10 20(3) 20(3) REVERSE DYNAMIC IMPEDANCE (3) IR = 100µA 0.2 0.6 0.2 0.6 Ω WIDE BAND NOISE (RMS) IR = 100µA 10Hz ≤ IR ≤ 10kHz 60 120 µV LONG TERM STABILITY IR = 100µA TA = 25°C ± 0.1°C 20 20 ppm/KHr NOTES: (1) This specification applies over the full operating temperature range of 0°C ≤ TA ≤ 70°C. (2) This specification applies over the full operating temperature range of 40°C ≤ TA ≤ +85°C. (3) Denotes the specifications which apply over the full operating temperature range. SPECIFICATIONS ELECTRICAL TA = +25°C unless otherwise noted. MODEL T A VZ PACKAGE REF1004C-1.2 0 °C to +70°C 1.2V 8-Lead SOIC REF1004C-2.5 0 °C to +70°C 2.5V 8-Lead SOIC REF1004I-1.2 –40 °C to +85°C 1.2V 8-Lead SOIC REF1004I-2.5 –40 °C to +85°C 2.5V 8-Lead SOIC NOTE: Available in Tape and Reel, Add –TR to Model Number.

ORDERING INFORMATION

Operating Temperature Range Storage Temperature ABSOLUTE MAXIMUM RATINGS MODEL PART MARKING REF1004C-1.2 BBREF0412 REF1004C-2.5 BBREF0425 REF1004I-1.2 BBREF0412 REF1004I-2.5 BBREF0425

PACKAGE INFORMATION

MODEL PACKAGE NUMBER (1) REF1004C-1.2 8-Pin SOIC 182 REF1004C-2.5 8-Pin SOIC 182 REF1004I-1.2 8-Pin SOIC 182 REF1004I-2.5 8-Pin SOIC 182 NOTE: (1) For detailed drawing and dimension table, please see end of data sheet, or Appendix D of Burr-Brown IC Data Book. The information provided herein is believed to be reliable; however, BURR-BROWN assumes no responsibility for inaccuracies or omissions. BURR-BROWN assumes no responsibility for the use of this information, and all use of such information shall be entirely at the user’s own risk. Prices and specifications are subject to change without notice. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. BURR-BROWN does not authorize or warrant any BURR-BROWN product for use in life support devices and/or systems.

3 REF1004

TYPICAL PERFORMANCE CURVES 1.2V TA = +25°C unless otherwise noted. REVERSE CHARACTERISTICS Reverse Voltage (V) Reverse Current (µA) 100 0.1 –40°C ≤ TA ≤ +85°C Temperature (°C) –55 –35 –15 5 25 45 65 85 105 125 1.245 1.240 1.235 1.230 1.225 Reverse Voltage (V) TEMPERATURE DRIFT REVERSE DYNAMIC IMPEDANCE Reverse Current (mA) 0.01 0.1 1 10 100 100 0.1 Reverse Impedance (Ω ) f = 25Hz –40°C to +85°C FORWARD CHARACTERISTICS 1.2 0.8 0.4 0.0 Forward Voltage (V) Forward Current (mA) 0.01 0.1 1 10 100 TA = 25°C –4 Output Voltage Change (mV) REVERSE VOLTAGE CHANGE Reverse Current (mA) 10.01 0.1 10 100 –40°C ≤ TA ≤ +85°C REVERSE DYNAMIC IMPEDANCE Frequency (Hz) 10 100 1k 10k 100k 1M 10k 100 0.1 Dynamic Impedance (Ω ) TA = +25°C IREF = 100µA

TYPICAL PERFORMANCE CURVES 1.2V (CONT) TA = +25°C unless otherwise noted. Frequency (Hz) 1k 10k 100k10010 700 600 500 400 300 200 100 Noise (nV/√Hz) NOISE VOLTAGE IREF = 100µA TA = 25°C FILTERED OUTPUT NOISE 100 1k 10k 100k Cutoff Frequency (Hz) Integrated Noise (µV) IREF = 100µA100µA R C RESPONSE TIME Time (µSec) 0 100 200 300 400 500 600 1.5 1.0 0.5 0.0 2.5 Voltage (V) 36kΩ VIN VOUT Output Input

5 REF1004

Reverse Current (µA) 100 0.1 Reverse Voltage (V) –40°C ≤ TA ≤ +85°C TYPICAL PERFORMANCE CURVES 2.5V TA = +25°C unless otherwise noted. FORWARD CHARACTERISTICS 1.2 1.0 0.8 0.6 0.4 0.2 0.0 Forward Voltage (V) Forward Current (mA) 0.01 0.1 1 10 100 TA = +25°C REVERSE VOLTAGE CHANGE Reverse Current (mA) Output Voltage Change (mV) 0.01 0.1 1 10 100 –40°C ≤ TA ≤ +85°C Temperature (°C) –55 –35 –15 5 25 45 65 85 105 125 2.520 2.515 2.510 2.505 2.500 2.495 2.490 2.485 2.480 2.475 Reference Voltage (V) TEMPERATURE DRIFT REVERSE DYNAMIC IMPEDANCE 1000 100 0.1 Reverse Impedance (Ω ) Reverse Current (mA) 0.01 0.1 1 10 100 f = 25Hz –40°C to +85°C REVERSE DYNAMIC IMPEDANCE Frequency (Hz) 10 100 1k 10k 100k 1M 10k 100 0.1 Dynamic Impedance (Ω ) TA = +25°C IREF = 100µA

TYPICAL PERFORMANCE CURVES 2.5V (CONT) TA = +25°C unless otherwise noted. Noise (nV/√Hz) Frequency (Hz) 1k 10k 100k10010 1400 1200 1000 800 600 400 200 NOISE VOLTAGE IREF = 100µA FILTERED OUTPUT NOISE 100 Cutoff Frequency (Hz) 1k 10k 100k Integrated Noise (µV) 120 100 100µA R C IREF = 100µA RESPONSE TIME Voltage (V) Time (µSec) 4.0 3.0 2.0 1.0 0.0 5.0 0.0 0 100 200 300 400 500 600 24kΩ VIN VOUT Output Input

7 REF1004

FIGURE 1. Low-Noise Reference. FIGURE2. Micropower Reference from 9V Battery. FIGURE 3. 1.2V Reference from 1.5V Battery. FIGURE 4. 2.5V Reference. FIGURE 5. Lead-Acid Low-Battery-Voltage Detector. NOTE: (1) R1 sets trip point, 60.4kΩ per cell for 1.8V per cell.

www.ti.com 23-May-2025 PACKAGING INFORMATION Orderable part number Status (1) Material type (2) Package | Pins Package qty | Carrier RoHS (3) Lead finish/ Ball material (4) MSL rating/ Peak reflow (5) Op temp (°C) Part marking (6) REF1004C-1.2 Active Production SOIC (D) | 8 75 | TUBE Yes NIPDAU Level-3-260C-168 HR 0 to 70 REF 0412 REF1004C-1.2.A Active Production SOIC (D) | 8 75 | TUBE Yes NIPDAU Level-3-260C-168 HR -40 to 85 REF 0412 REF1004C-1.2/2K5 Active Production SOIC (D) | 8 2500 | LARGE T&R Yes NIPDAU Level-3-260C-168 HR 0 to 70 REF 0412 REF1004C-1.2/2K5.A Active Production SOIC (D) | 8 2500 | LARGE T&R Yes NIPDAU Level-3-260C-168 HR -40 to 85 REF 0412 REF1004C-2.5 Active Production SOIC (D) | 8 75 | TUBE Yes NIPDAU Level-3-260C-168 HR 0 to 70 REF 0425 REF1004C-2.5.A Active Production SOIC (D) | 8 75 | TUBE Yes NIPDAU Level-3-260C-168 HR -40 to 85 REF 0425 REF1004C-2.5/2K5 Active Production SOIC (D) | 8 2500 | LARGE T&R Yes NIPDAU Level-3-260C-168 HR 0 to 70 REF 0425 REF1004C-2.5/2K5.A Active Production SOIC (D) | 8 2500 | LARGE T&R Yes NIPDAU Level-3-260C-168 HR -40 to 85 REF 0425 REF1004I-1.2 Active Production SOIC (D) | 8 75 | TUBE Yes NIPDAU Level-3-260C-168 HR -40 to 85 REF 0412 REF1004I-1.2.A Active Production SOIC (D) | 8 75 | TUBE Yes NIPDAU Level-3-260C-168 HR -40 to 85 REF 0412 REF1004I-1.2/2K5 Active Production SOIC (D) | 8 2500 | LARGE T&R Yes NIPDAU Level-3-260C-168 HR -40 to 85 REF 0412 REF1004I-1.2/2K5.A Active Production SOIC (D) | 8 2500 | LARGE T&R Yes NIPDAU Level-3-260C-168 HR -40 to 85 REF 0412 REF1004I-1.2E4 NRND Production SOIC (D) | 8 75 | TUBE - Call TI Call TI -40 to 85 REF1004I-2.5 Active Production SOIC (D) | 8 75 | TUBE Yes NIPDAU Level-3-260C-168 HR -40 to 85 REF 0425 REF1004I-2.5.A Active Production SOIC (D) | 8 75 | TUBE Yes NIPDAU Level-3-260C-168 HR -40 to 85 REF 0425 REF1004I-2.5/2K5 Active Production SOIC (D) | 8 2500 | LARGE T&R Yes NIPDAU Level-3-260C-168 HR -40 to 85 REF 0425 REF1004I-2.5/2K5.A Active Production SOIC (D) | 8 2500 | LARGE T&R Yes NIPDAU Level-3-260C-168 HR -40 to 85 REF 0425 Addendum-Page 1

www.ti.com 23-May-2025 (1) Status: For more details on status, see our product life cycle. (2) Material type: When designated, preproduction parts are prototypes/experimental devices, and are not yet approved or released for full production. Testing and final process, including without limitation quality assurance, reliability performance testing, and/or process qualification, may not yet be complete, and this item is subject to further changes or possible discontinuation. If available for ordering, purchases will be subject to an additional waiver at checkout, and are intended for early internal evaluation purposes only. These items are sold without warranties of any kind. (3) RoHS values: Yes, No, RoHS Exempt. See the TI RoHS Statement for additional information and value definition. (4) Lead finish/Ball material: Parts may have multiple material finish options. Finish options are separated by a vertical ruled line. Lead finish/Ball material values may wrap to two lines if the finish value exceeds the maximum column width. (5) MSL rating/Peak reflow: The moisture sensitivity level ratings and peak solder (reflow) temperatures. In the event that a part has multiple moisture sensitivity ratings, only the lowest level per JEDEC standards is shown. Refer to the shipping label for the actual reflow temperature that will be used to mount the part to the printed circuit board. (6) Part marking: There may be an additional marking, which relates to the logo, the lot trace code information, or the environmental category of the part. Multiple part markings will be inside parentheses. Only one part marking contained in parentheses and separated by a "~" will appear on a part. If a line is indented then it is a continuation of the previous line and the two combined represent the entire part marking for that device. Important Information and Disclaimer:The information provided on this page represents TI's knowledge and belief as of the date that it is provided. TI bases its knowledge and belief on information provided by third parties, and makes no representation or warranty as to the accuracy of such information. Efforts are underway to better integrate information from third parties. TI has taken and continues to take reasonable steps to provide representative and accurate information but may not have conducted destructive testing or chemical analysis on incoming materials and chemicals. TI and TI suppliers consider certain information to be proprietary, and thus CAS numbers and other limited information may not be available for release. In no event shall TI's liability arising out of such information exceed the total purchase price of the TI part(s) at issue in this document sold by TI to Customer on an annual basis. Addendum-Page 2

PACKAGE MATERIALS INFORMATION www.ti.com 23-May-2025 TAPE AND REEL INFORMATION Reel Width (W1) REEL DIMENSIONS A0B0K0WDimension designed to accommodate the component lengthDimension designed to accommodate the component thicknessOverall width of the carrier tapePitch between successive cavity centersDimension designed to accommodate the component width TAPE DIMENSIONSK0 P1B0WA0Cavity QUADRANT ASSIGNMENTS FOR PIN 1 ORIENTATION IN TAPE Pocket QuadrantsSprocket HolesQ1Q1Q2Q2Q3Q3Q4Q4User Direction of Feed P1ReelDiameter *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Reel Diameter (mm) Reel Width W1 (mm) (mm) (mm) (mm) (mm) W (mm) Pin1 Quadrant Pack Materials-Page 1

PACKAGE MATERIALS INFORMATION www.ti.com 23-May-2025 TAPE AND REEL BOX DIMENSIONS Width (mm) W LH *All dimensions are nominal Device Package Type Package Drawing Pins SPQ Length (mm) Width (mm) Height (mm) REF1004C-1.2/2K5 SOIC D 8 2500 356.0 356.0 35.0 REF1004C-2.5/2K5 SOIC D 8 2500 356.0 356.0 35.0 REF1004I-1.2/2K5 SOIC D 8 2500 356.0 356.0 35.0 REF1004I-2.5/2K5 SOIC D 8 2500 356.0 356.0 35.0 Pack Materials-Page 2

PACKAGE MATERIALS INFORMATION www.ti.com 23-May-2025 TUBE L - Tube length T - Tube height W - Tube width B - Alignment groove width *All dimensions are nominal Device Package Name Package Type Pins SPQ L (mm) W (mm) T (µm) B (mm) REF1004C-1.2 D SOIC 8 75 506.6 8 3940 4.32 REF1004C-1.2.A D SOIC 8 75 506.6 8 3940 4.32 REF1004C-2.5 D SOIC 8 75 506.6 8 3940 4.32 REF1004C-2.5.A D SOIC 8 75 506.6 8 3940 4.32 REF1004I-1.2 D SOIC 8 75 506.6 8 3940 4.32 REF1004I-1.2.A D SOIC 8 75 506.6 8 3940 4.32 REF1004I-2.5 D SOIC 8 75 506.6 8 3940 4.32 REF1004I-2.5.A D SOIC 8 75 506.6 8 3940 4.32 Pack Materials-Page 3

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