VILLE 19-123; Rev 1; 1/1 Pin onfiguration 8V TO 36V INPUT TOP VIEW 2.2µF * NR IN TRI REFERENE 2.2µF * I.. IN NR 1 2 3 4 DIP/SO 8 7 6 5 I.. I.. TRI *OPTIONL I.. = INTERNLLY ONNETED; DO NOT USE For pricing, delivery, and ordering information, please contact axim Direct at 1-888-629-4642, or visit axim s website at www.maximintegrated.com. 19-123; Rev 1; 1/1
SOLUTE XIU RTINGS (Voltages Referenced to ) IN...-.3V to 4V, TRI...-.3V to 12V NR...-.3V to 6V Short-ircuit to Duration (V IN 12V)...ontinuous Short-ircuit to Duration (V IN 4V)...5s Short-ircuit to IN Duration (V IN 12V)...ontinuous ontinuous Power Dissipation (T = +7 ) 8-Pin Plastic DIP (derate 9.9mW/ above +7 )...727mW 8-Pin SO (derate 5.88mW/ above +7 )...471mW 8-Pin ERDIP (derate 8.mW/ above +7 )...64mW Operating Temperature Ranges X63 _... to +7 X63 E_...-4 to +85 X63 J...-55 to +125 Storage Temperature Range...-65 to +15 Lead Temperature (soldering, s)...+ Stresses beyond those listed under bsolute aximum Ratings may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to absolute maximum rating conditions for extended periods may affect device reliability. ELETRIL HRTERISTIS (V IN = +V, I = m, T = T IN to T X, unless otherwise noted. Typical values are at T = +25.) PRETER SYOL ONDITIONS T IN TYP X UNITS Input Voltage Range V IN, E, 8 36 V Output Voltage V +25 2.499 2.5 2.51 V _.5 Output Voltage Temperature TV E_ E.75 ppm/ oefficient (Note 1) J 2.5 +25 18 8V V IN V E 35 V / 45 Line Regulation (Note 2) ppm/v V IN +25 2 5 7 V V IN 36V E 8 1 6 Sourcing: m I 15m E 1 7 Load Regulation (Note 2) ppm/m Sinking: -15m I m E 1 7 Supply urrent I IN m Trim-djustment Range V (Figure 1), E, ±15 ±25 mv Turn-On Settling Time t ON To ±.1% of final value +25 5 µs Output Noise Voltage (Note 3) e n Temperature Hysteresis (Note 4) +25 2 ppm V / +25.1Hz f Hz 1.8 +25 3 2.7 15 µvp-p I, E, Hz f 1kHz +25 1 3. 1.3 6 2.8 µv RS Long-Term Stability V /t +25 ppm/ hr 2 axim Integrated
ELETRIL HRTERISTIS (V IN = +V, I = m, T = T IN to T X, unless otherwise noted. Typical values are at T = +25.) PRETER SYOL ONDITIONS T IN TYP X UNITS Input Voltage Range V IN, E, 8 36 V Output Voltage V +25 4.95 4.96 4.97 V _.5 Output Voltage Temperature TV oefficient (Note 1) E_ E.75 ppm/ J 2.5 +25 18 8V V IN V E 35 V Line Regulation (Note 2) / 45 ppm/v V IN +25 2 5 7 V V IN 36V E 8 1 6 Sourcing: m I 15m E 1 7 Load Regulation (Note 2) ppm/m Sinking: -15m I m E 1 7 7 18 Supply urrent I IN m Trim-djustment Range V (Figure 1), E, ±24 ±4 mv Turn-On Settling Time t ON To ±.1% of final value +25 8 µs Output Noise Voltage (Note 3) e n Temperature Hysteresis (Note 4) +25 2 ppm V / +25.1Hz f Hz 1.9 +25 3 2.9 2.4 9 µvp-p I, E, Hz f 1kHz +25 1 3.2 2. 6 4. µv RS Long-Term Stability V /t +25 ppm/ hr axim Integrated 3
ELETRIL HRTERISTIS (V IN = +V, I = m, T = T IN to T X, unless otherwise noted. Typical values are at T = +25.) Output Voltage PRETER Input Voltage Range Output Voltage Temperature oefficient (Note 1) Line Regulation (Note 2) Load Regulation (Note 2) SYOL V IN V TV V / V IN V / I _ E_ J 8V V IN V V V IN 36V ONDITIONS Sourcing: m I 15m Sinking: -15m I m, E, +25 IN TYP X 8 36 4.999 5. 5.1.5 E.75 2.5 +25 18 +25 2. 3. Supply urrent I IN, E, 3.3 T E 35 45 +25 2 5 7 E 8 1 6 E 1 7 2 9 1 6 E 1 7 6 15 UNITS V V ppm/ ppm/v ppm/m m Trim-djustment Range Temperature Hysteresis V (Figure 1), E, ± ±5 mv Turn-On Settling Time t ON To ±.1% of final value +25.1Hz f Hz +25 Output Noise Voltage (Note 3) e n Hz f 1kHz +25 (Note 4) +25 Long-Term Stability V /t +25 µs 3. µvp-p 2.5 5. µv RS 2 ppm ppm/ hr Note 1: Temperature coefficient is measured by the box method; i.e., the maximum V is divided by T x V. Note 2: Line regulation ( V / (V x VIN )) and load regulation ( V / (V x I )) are measured with pulses and do not include output voltage changes due to die-temperature changes. Note 3: Noise specifications are guaranteed by design. Note 4: Temperature hysteresis is specified at T = +25 by measuring V before and after changing temperature by +25, using the plastic DIP package. 4 axim Integrated
Typical Operating haracteristics (V IN = +V, I = m, T = +25, unless otherwise noted.) V (mv) 2..5 -.5 - NORLIZED PUT VOLTGE vs. TEPERTURE -1 - - -55-35 -15 5 25 45 65 85 5 125 TEPERTURE ( ) 4 2 - -2 V (ppm) V (mv).5 -.5 NORLIZED PUT VOLTGE vs. TEPERTURE -2 - -25-55 -35-15 5 25 45 65 85 5 125 TEPERTURE ( ) 375 25 125-125 V (ppm) V (mv).7.6.5.4.3.2.1 -.1 -.2 -.3 NORLIZED PUT VOLTGE vs. TEPERTURE 3 28 24 2 16 12-4 -8-12 -.4-16 -55-35 -15 5 25 45 65 85 5 125 TEPERTURE ( ) 8 4 V (ppm) V (ppm) 6 5 4 2 - HNGE IN PUT VOLTGE vs. INPUT VOLTGE -4 V (µv) 2 15 5-5 - -15-2 HNGE IN PUT VOLTGE vs. PUT URRENT T = -4 T = +85 T = +25-5 V (µv) 2 - -2 HNGE IN PUT VOLTGE vs. PUT URRENT T = +25 T = -4 T = +85-6 -2 5 15 2 25 35 4 V IN (V) -25-4 - -2-2 4 I (m) - -4 - -2-2 4 I (m) V (µv) 2 - -2 - HNGE IN PUT VOLTGE vs. PUT URRENT T = -4 T = +85 T = +25-7 SUPPLY URRENT (m) 3. 2.8 2.6 2.4 2.2 2. 1.8 1.6 1.4 1.2 SUPPLY URRENT vs. SUPPLY VOLTGE -8 SUPPLY URRENT (m) 3.5 3. 2.5 2. SUPPLY URRENT vs. TEPERTURE -9-4 -4 - -2-2 4 I (m) 5 15 2 25 35 4 SUPPLY VOLTGE (V) -55-35 -15 5 25 45 65 85 5 125 TEPERTURE ( ) axim Integrated 5
Typical Operating haracteristics (continued) (V IN = +V, I = m, T = +25, unless otherwise noted.) PUT NOISE DENSITY (nv/ Hz) 5 45 4 35 25 2 15 5 PUT NOISE-VOLTGE DENSITY vs. FREQUENY NR = µf NR = 1µF - PUT NOISE DENSITY (nv/ Hz) 9 8 7 6 5 4 2 PUT NOISE-VOLTGE DENSITY vs. FREQUENY NR = µf NR = 1µF -11 PUT NOISE DENSITY (nv/ Hz) 9 8 7 6 5 4 2 PUT NOISE-VOLTGE DENSITY vs. FREQUENY NR = µf NR = 1µF -12 1k k FREQUENY (Hz) 1k k FREQUENY (Hz) 1k k FREQUENY (Hz) RIPPLE REJETION (d) 12 1 9 8 RIPPLE REJETION vs. FREQUENY ( NR = 1µF) -13 PUT IPEDNE (Ω) 1.1 PUT IPEDNE vs. FREQUENY I SINK = 5m -14 RIPPLE REJETION (d) 95 9 85 8 75 7 RIPPLE REJETION vs. FREQUENY ( NR = µf) -15 7 65 6 1k k FREQUENY (Hz).1 I SOURE = 5m 1k k k 1 FREQUENY (Hz) 6 1k k FREQUENY (Hz).1Hz to Hz NOISE.1Hz to Hz NOISE.1Hz to Hz NOISE -16-17 -18 = NR = µf = NR = µf = NR = µf V,.5µV/div V, 1µV/div V, 1µV/div 1s/div 1s/div 1s/div 6 axim Integrated
Typical Operating haracteristics (continued) (V IN = +V, I = m, T = +25, unless otherwise noted.) LOD-TRNSIENT RESPONSE (SOURING) -19 LOD-TRNSIENT RESPONSE (SINKING) -2 m -m m m 2µs/div 2µs/div : I, m/div (SOURING) : V, 5µV/div : I, m/div (SINKING) : V, 5µV/div LOD-TRNSIENT RESPONSE -21 -m +m TURN-ON ND TURN-OFF TRNSIENT RESPONSE -22 +V V IN = V = NR = µf IN = = NR = µf 1µs/div : I (±m SOURE ND SINK), 2m/div, OUPLED : V, 2mV/div, OUPLED : V IN, V/div : V, 1V/div 1µs/div TURN-ON ND TURN-OFF TRNSIENT RESPONSE -23 TURN-ON ND TURN-OFF TRNSIENT RESPONSE -24 +V +V IN = = NR = µf IN = = NR = µf 1µs/div 1µs/div : V IN, V/div : V, 1V/div : V IN, V/div : V, 1V/div axim Integrated 7
Pin Description PIN NE FUNTION 1, 7, 8 I.. Internally onnected. Do not use. 2 IN Positive Power-Supply Input 3 NR 4 Ground 5 TRI Noise Reduction. Optional capacitor connection for wideband noise reduction. Leave open if not used (Figure 2). External Trim Input. llows ±1% output adjustment (Figure 1). Leave open if not used. 6 Voltage Reference Output Detailed Description Temperature Stability The are highly stable, low-noise voltage references that use a low-power temperature-compensation scheme to achieve laboratorystandard temperature stability. This produces a nearly flat temperature curve, yet does not require the power associated with heated references. The output voltage can be trimmed a minimum of.6% by connecting a kω potentiometer between and, and connecting its tap to the TRI pin, as shown in Figure 1. The external trimming does not affect temperature stability. Noise Reduction To augment wideband noise reduction, add a 1µF capacitor to the NR pin (Figure 2). Larger values do not improve noise appreciably (see Typical Operating haracteristics). Noise in the power-supply input can affect output noise, but can be reduced by adding an optional bypass capacitor to the IN pin and. ypassing The are stable with capacitive load values from µf to µf, for all values of load current. dding an output bypass capacitor can help reduce noise and output glitching caused by load transients. pplications Information Negative Regulator Figure 3 shows how both a +5V and -5V precision reference can be obtained from a single, unregulated +5V supply. X865 generates approximately ±9V to operate the reference and X4 inverting amplifier. The +5V is inverted by the ultra-low offset X4 op amp. Resistor R1 is optional, and may be used to trim the ±5V references. R2 and R4 should be matched, both in absolute resistance and temperature coefficient. R3 is optional, and is adjusted to set the -5V reference. 8V TO 36V INPUT 8V TO 36V INPUT NR IN TRI REFERENE kω * NR IN TRI REFERENE 1µF *OPTIONL Figure 1. Output Voltage djustment Figure 2. Noise-Reduction apacitor 8 axim Integrated
+5V INPUT 3.3µF 1+ 1- V V+ IN +REFERENE 3.3µF X865 2+ 2- V- 1 2.2µF 2 1µF NR TRI R1 kω R2 kω R3 3 1kΩ 2.2µF 4 1µF X4.1µF 2.2µF R4 kω.1µf -REFERENE Figure 3. +5V and -5V References from a Single +5V Supply Ordering Information (continued) PRT P S TEP. RNGE to +7 8 Plastic DIP to +7 PIN- PKGE 8 SO X. TEPO (ppm/ ) EP -4 to +85 8 Plastic DIP ES -4 to +85 8 SO J -55 to +125 8 ERDIP 2.5 P to +7 8 Plastic DIP S to +7 8 SO EP -4 to +85 8 Plastic DIP ES -4 to +85 8 SO J -55 to +125 8 ERDIP 2.5 hip Information TRNSISTOR OUNT: 435 axim Integrated 9
Package Information PDIPN.EPS SOIN.EPS axim Integrated
Package Information (continued) DIPS.EPS axim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a axim product. No circuit patent licenses are implied. axim reserves the right to change the circuitry and specifications without notice at any time. The parametric values (min and max limits) shown in the Electrical haracteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. axim Integrated 16 Rio Robles, San Jose, 95134 US 1-48-61-11 21 axim Integrated The axim logo and axim Integrated are trademarks of axim Integrated Products, Inc.