Low Voltage Reference A precision bandgap voltage reference designed for critical instrumentation and D/A converter applications. This unit is designed to work with D/A converters, up to bits in accuracy, or as a reference for power supply applications. Output Voltage:. V mv Input Voltage Range:. V to 0 V Quiescent Current:. ma Typical Output Current: 0 ma Temperature Coefficient: 0 ppm/ C Typical Guaranteed Temperature Drift Specification Equivalent to AD0 Standard Pin DIP, and Pin SOIC Package Typical Applications Voltage Reference for to Bit D/A Converters Low T C Zener Replacement High Stability Current Reference Voltmeter System Reference PbFree Package is Available MAXIMUM RATINGS (T A = C, unless otherwise noted.) Rating Symbol Value Unit Input Voltage V I 0 V Storage Temperature T stg to 0 C Junction Temperature T J + C Operating Ambient Temperature Range MC0B MC0 T A 0 to + 0 to + 0 Maximum ratings are those values beyond which device damage can occur. Maximum ratings applied to the device are individual stress limit values (not normal operating conditions) and are not valid simultaneously. If these limits are exceeded, device functional operation is not implied, damage may occur and reliability may be affected. C C PRECISION LOW VOLTAGE REFEREE V out GND PDIP P SUFFIX CASE SOIC D SUFFIX CASE PIN CONNECTIONS V in ORDERING INFORMATION See detailed ordering and shipping information in the package dimensions section on page of this data sheet. Semiconductor Components Industries, LLC, 00 March, 00 Rev. Publication Order Number: MC0/D
+.0 V MC0. V.0 k R R Full Scale Adjust 00 I Ref Reference Amplifier Monolithic D/A Converter *0. F C. k R Figure. A Reference for Monolithic D/A Converters * Caution: System stability may be affected if output capacitance * exceeds.0 F. Using higher capacitance values is not * recommended and should be carefully considered. Providing the Reference Current for ON Semiconductor Monolithic D/A Converters The MC0 makes an ideal reference for many monolithic D/A converters, requiring a stable current reference of nominally.0 ma. This can be easily obtained from the MC0 with the addition of a series resistor, R. A variable resistor, R, is recommended to provide means for full scale adjust on the D/A converter. The resistor R improves temperature performance by matching the impedance on both inputs of the D/A reference amplifier. The capacitor decouples any noise present on the reference line. It is essential if the D/A converter is located any appreciable distance from the reference. A single MC0 reference can provide the required current input for up to five of the monolithic D/A converters. ELECTRICAL CHARACTERISTICS (V in = V, T A = C, unless otherwise noted.) Characteristic Symbol Min Typ Max Unit Output Voltage V out... V (I O = 0 ma) Temperature Coefficient of Output Voltage* V O / T 0 0 ppm/ C MC0 Output Voltage Change* V O mv (Over specified temperature range) MC0B 0 to +0 C.0 MC0B 0 to + C. Line Regulation (I O = 0 ma) Reg line mv ( V V I 0 V) (. V V I V). 0...0 Load Regulation Reg load 0 mv (0 ma < I O < 0 ma) Quiescent Current I Q.. ma (I O = 0 ma) *Guaranteed but not tested.
V in.0 k.0 k.0 k.0 k.0 k V out. k. k. k C 0 pf 0 k. k.0 k. k This device contains active transistors. Figure. Schematic
V, CHANGE IN Vout (mv) out.0.0 0.0.0.0.0.0 C 0 C C.0 0 0 0 0 0 0 V in, INPUT VOLTAGE (V) Figure. Typical Change in V out versus V in (Normalized to V in = V @ T C = C) V out, CHANGE IN OUTPUT VOLTAGE (mv) 0 9.0.0.0.0.0.0 C.0.0.0 0 C C 0 0.0.0.0.0.0.0.0.0 9.0 0 I out, OUTPUT CURRENT (ma) Figure. Change in Output Voltage versus Load Current (Normalized to V out @ V in = V, I out = 0 ma) I, QUIESCENT CURRENT (ma)..0..0.0.00 0.9 0.90 0 0 V, CHANGE IN Vout (mv) out 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 T A, TEMPERATURE ( C) T A, TEMPERATURE ( C) Figure. Quiescent Current versus Temperature (V in = V, I out = 0 ma) 0.0.0.0.0 0 V in = V V in =.0 V I out = ma Figure. Change in V out versus Temperature (Normalized to V out @ V in = V).0 V, CHANGE IN Vout (mv) out.0 0.0.0.0.0 0 I O = 0 ma =.0 ma =.0 ma =.0 ma 0 0 0 0 0 0 0 0 0 0 0 0 0 T A, TEMPERATURE ( C) Figure. Change in V out versus Temperature (Normalized to T A = C, V in = V, I out = 0 ma)
/Digit Voltmeter Common Anode Displays, Flashing Overrange An example of a /digit voltmeter using the MC is shown in the circuit diagram of Figure. The reference voltage for the system uses an MC0. V reference IC. The full scale potentiometer can calibrate for a full scale of 99.9 mv or.999 V. When switching from.0 V to 00 mv operation, R I is also changed, as shown on the diagram. When using R C equal to 00 k, the clock frequency for the system is about khz. The resulting conversion time is approximately 0 ms. When the input is overrange, the display flashes on and off. The flashing rate is onehalf the conversion rate. This is done by dividing the EOC pulse rate by with / MC0B flipflop and blanking the display using the blanking input of the MCB. The display uses an LED display with common anode digit lines driven with an MCB decoder and an MC LED driver. The MC contains Darlington transistor drivers and resistors to drive the segments of the display. The digit drive is provided by four MPSA Darlington transistors operating in an emitterfollower configuration. The MCB, MC0B and LED displays are referenced to V EE via Pin of the MC. This places the full power supply voltage across the display. The current for the display may be adjusted by the value of the segment resistors shown as 0 in Figure. +.0 V 0. F V X MC0 0. F R I * 0. F ** 00 k R C 0 k 0 MC 0. F 0 +.0 V.0 V.0 V 0. F 9 0 MCB +.0 V +.0 V MC 0 Segment Resistors 0 () 0. F 9 DS 9 DS DS DS.0 V.0 V.0 V D C S Q Q R.0 V MC0B.0 V k +.0 V Minus Sign 00 MPSA Plus Sign 0 Common Anode LED Display f g e d c b a * R I = 0 k for.0 V Range R I = k for 00 mv Range ** Mylar Capacitor.0 V 9 D S C R 0 Q Q +.0 V 0 F.0 V 0. F MPSA () Figure. /Digit Voltmeter
ORDERING INFORMATION Device Package Operating Temperature Range Shipping MC0D SOIC 9 Units/Rail MC0DG SOIC (PbFree) 9 Units/Rail MC0DR SOIC 00 Tape/Reel MC0DRG SOIC T A = 0 to +0 C 00 Tape/Reel (PbFree) MC0P PDIP 000 Units/Rail MC0PG PDIP (PbFree) 000 Units/Tubes MC0BD SOIC 9 Units/Rail MC0BDG SOIC (PbFree) 9 Units/Rail MC0BDR SOIC T A = 0 to + C 00 Tape/Reel MC0BP MC0BPG PDIP PDIP (PbFree) 000 Units/Rail 000 Units/Rail For information on tape and reel specifications, including part orientation and tape sizes, please refer to our Tape and Reel Packaging Specifications Brochure, BRD0/D.
PACKAGE DIMENSIONS PDIP P SUFFIX CASE 0 ISSUE L NOTES:. DIMENSION L TO CENTER OF LEAD WHEN FORMED PARALLEL.. PACKAGE CONTOUR OPTIONAL (ROUND OR SQUARE CORNERS).. DIMENSIONING AND TOLERAING PER ANSI Y.M, 9.
PACKAGE DIMENSIONS X B Y A S 0. (0.00) M Y M SOIC D SUFFIX CASE 0 ISSUE AE K NOTES:. DIMENSIONING AND TOLERAING PER ANSI Y.M, 9.. CONTROLLING DIMENSION: MILLIMETER.. DIMENSION A AND B DO NOT ILUDE MOLD PROTRUSION.. MAXIMUM MOLD PROTRUSION 0. (0.00) PER SIDE.. DIMENSION D DOES NOT ILUDE DAMBAR PROTRUSION. ALLOWABLE DAMBAR PROTRUSION SHALL BE 0. (0.00) TOTAL IN EXCESS OF THE D DIMENSION AT MAXIMUM MATERIAL CONDITION.. 0 THRU 0 ARE OBSOLETE. NEW STANDARD IS 0. Z H G D C 0. (0.00) M Z Y S X S SEATING PLANE 0.0 (0.00) N X M J MILLIMETERS IHES DIM MIN MAX MIN MAX A.0.00 0.9 0.9 B.0.00 0.0 0. C.. 0.0 0.09 D 0. 0. 0.0 0.00 G. BSC 0.00 BSC H 0.0 0. 0.00 0.00 J 0.9 0. 0.00 0.00 K 0.0. 0.0 0.00 M 0 0 N 0. 0.0 0.00 0.00 S.0.0 0. 0. SOLDERING FOOTPRINT*. 0.00.0 0..0 0. 0. 0.0.0 0.00 SCALE : mm inches *For additional information on our PbFree strategy and soldering details, please download the ON Semiconductor Soldering and Mounting Techniques Reference Manual, SOLDERRM/D. ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC reserves the right to make changes without further notice to any products herein. SCILLC makes no warranty, representation or guarantee regarding the suitability of its products for any particular purpose, nor does SCILLC assume any liability arising out of the application or use of any product or circuit, and specifically disclaims any and all liability, including without limitation special, consequential or incidental damages. Typical parameters which may be provided in SCILLC data sheets and/or specifications can and do vary in different applications and actual performance may vary over time. All operating parameters, including Typicals must be validated for each customer application by customer s technical experts. SCILLC does not convey any license under its patent rights nor the rights of others. SCILLC products are not designed, intended, or authorized for use as components in systems intended for surgical implant into the body, or other applications intended to support or sustain life, or for any other application in which the failure of the SCILLC product could create a situation where personal injury or death may occur. Should Buyer purchase or use SCILLC products for any such unintended or unauthorized application, Buyer shall indemnify and hold SCILLC and its officers, employees, subsidiaries, af