MAX6168BESA+

MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References General Description The MAX6161–MAX6168 are precision, low-dropout, micropower voltage references. These three-terminal devices operate with an input voltage range from (VOUT + 200mV) to 12.6V and are available with output voltage options of 1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V, 4.5V, and 5V. They feature a proprietary curvature-correction circuit and laser-trimmed thin-film resistors that result in a very low temperature coefficient of 5ppm/°C (max) and an initial accuracy of ±2mV (max). Specifications apply to the extended temperature range (-40°C to +85°C). The MAX6161–MAX6168 typically draw only 100μA of supply current and can source 5mA (4mA for MAX6161) or sink 2mA of load current. Unlike conventional shuntmode (two-terminal) references that waste supply current and require an external resistor, these devices offer a supply current that is virtually independent of the supply voltage (8μA/V variation) and do not require an external resistor. Additionally, the internally compensated devices do not require an external compensation capacitor. Eliminating the external compensation capacitor saves valuable board area in space-critical applications. A low-dropout voltage and a supply-independent, ultra-low supply current make these devices ideal for batteryoperated, high-performance, low-voltage systems. Benefits and Features ●● ±2mV (max) Initial Accuracy ●● 5ppm/°C (max) Temperature Coefficient ●● 5mA Source Current at 0.9mV/mA ●● 2mA Sink Current at 2.5mV/mA ●● Stable with 1μF Capacitive Loads ●● No External Capacitor Required ●● 100μA (typ) Quiescent Supply Current ●● 200mV (max) Dropout at 1mA Load Current ●● Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V, 4.5V, 5V Applications ●● ●● ●● ●● ●● ●● Analog-to-Digital Converters (ADCs) Portable Battery-Powered Systems Notebook Computers PDAs, GPS, DMMs Cellular Phones Precision +3V/+5V Systems Ordering Information, Typical Operating Circuit, and Selector Guide appear at end of data sheet. The MAX6161–MAX6168 are available in 8-pin SO packages. Pin Configuration TOP VIEW N.C. 1 IN 2 N.C. 3 + MAX6161– MAX6168 GND 4 SO 19-1650; Rev 4; 12/08 8 N.C. 7 N.C. 6 OUT 5 N.C. MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Absolute Maximum Ratings Voltages Referenced to GND IN ........................................................................... -0.3 to +13.5V OUT.............................................................-0.3V to (VIN + 0.3V) Output Short-Circuit Duration to GND or IN (VIN ≤ 6V)..... Continuous Output Short-Circuit Duration to GND or IN (VIN > 6V)......... 60s Continuous Power Dissipation (TA = +70°C) 8-Pin SO (derate 5.88mW/°C above +70°C)...............471mW Operating Temperature Range ...........................-40°C to +85°C Storage Temperature Range………….…………-65°C to +150°C Lead Temperature (soldering, 10s).................................. +300°C Stresses beyond those listed under “Absolute Maximum 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. Electrical Characteristics—MAX6161 (VOUT = 1.25V) (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage SYMBOL VOUT Output Voltage Temperature Coefficient (Note 2) TCVOUT Line Regulation ΔVOUT/ ΔVIN Load Regulation ΔVOUT/ ΔIOUT OUT Short-Circuit Current ISC Long-Term Stability ΔVOUT/ time Output Voltage Hysteresis (Note 3) ΔVOUT/ cycle CONDITIONS MIN TYP MAX MAX6161A 1.248 1.250 1.252 MAX6161B 1.246 1.250 1.254 MAX6161A 4 10 MAX6161B 6 15 2.5V ≤ VIN ≤ 12.6V 12 150 Sourcing: 0 ≤ IOUT ≤ 4mA 0.5 0.9 Sinking: -2mA ≤ IOUT ≤ 0 1.3 2.5 Short to GND 110 Short to IN 25 1000hr at +25°C 115 ppm/ 1000hr 125 ppm f = 0.1Hz to 10Hz 20 µVp-p f = 10Hz to 10kHz 15 µVRMS VIN = +5V ±100mV, f = 120Hz 80 dB VOUT to 0.1% of final value, COUT = 50pF 50 µs TA = +25°C UNITS V ppm/°C µV/V mV/mA mA DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time eOUT VOUT/VIN tR INPUT CHARACTERISTICS Supply Voltage Range VIN Quiescent Supply Current IIN Change in Supply Current ΔIIN/ΔVIN www.maximintegrated.com Guaranteed by line-regulation test 2.5V ≤ VIN ≤ 12.6V 2.5 12.6 V 125 150 µA 3.2 8.0 µA/V Maxim Integrated │  2 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Electrical Characteristics—MAX6168 (VOUT = 1.800V) (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage SYMBOL VOUT Output Voltage Temperature Coefficient (Note 2) TCVOUT Line Regulation ΔVOUT/ ΔVIN Load Regulation ΔVOUT/ ΔIOUT OUT Short-Circuit Current ISC Long-Term Stability ΔVOUT/ time Output Voltage Hysteresis (Note 3) ΔVOUT/ cycle CONDITIONS MIN TYP MAX MAX6168A 1.798 1.800 1.802 MAX6168B 1.795 1.800 1.805 MAX6168A 2 5 MAX6168B 4 10 2.5V ≤ VIN ≥ 12.6V 42 200 Sourcing: 0 ≤ IOUT ≤ 5mA 0.5 0.9 Sinking: -2mA ≤ IOUT ≤ 0 1.5 4 Short to GND 110 Short to IN 25 1000hr at +25°C 80 ppm/ 1000hr 125 ppm f = 0.1Hz to 10Hz 22 µVp-p f = 10Hz to 10kHz 25 µVRMS VIN = +5V ±100mV, f = 120Hz 78 dB VOUT to 0.1% of final value, COUT = 50pF 100 µs TA = +25°C UNITS V ppm/°C µV/V mV/mA mA DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time eOUT ΔVOUT/ΔVIN tR INPUT CHARACTERISTICS Supply Voltage Range VIN Quiescent Supply Current IIN Change in Supply Current ΔIIN/ΔVIN www.maximintegrated.com Guaranteed by line-regulation test 2.5V ≤ VIN ≤ 12.6V 2.5 12.6 V 100 120 µA 3.4 8.0 µA/V Maxim Integrated │  3 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Electrical Characteristics—MAX6162 (VOUT = 2.048V) (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage SYMBOL VOUT Output Voltage Temperature Coefficient (Note 2) TCVOUT Line Regulation ΔVOUT/ ΔVIN Load Regulation ΔVOUT/ ΔIOUT OUT Short-Circuit Current ISC Long-Term Stability ΔVOUT/ time Output Voltage Hysteresis (Note 3) ΔVOUT/ cycle CONDITIONS MIN TYP MAX MAX6162A 2.046 2.048 2.050 MAX6162B 2.043 2.048 2.053 MAX6162A 2 5 MAX6162B 4 10 2.5V ≤ VIN ≤ 12.6V 42 250 Sourcing: 0 ≤ IOUT ≤ 5mA 0.5 0.9 Sinking: -2mA ≤ IOUT ≤ 0 1.5 4 Short to GND 110 Short to IN 25 1000hr at +25°C 80 ppm/ 1000hr 125 ppm f = 0.1Hz to 10Hz 22 µVp-p f = 10Hz to 10kHz 25 µVRMS VIN = 5V ±100mV, f = 120Hz 78 dB VOUT to 0.1% of final value, COUT = 50pF 100 µs TA = +25°C UNITS V ppm/°C µV/V mV/mA mA DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time eOUT VOUT/VIN tR INPUT CHARACTERISTICS Supply Voltage Range VIN Quiescent Supply Current IIN Change in Supply Current ΔIIN/ΔVIN www.maximintegrated.com Guaranteed by line-regulation test 2.5V ≤ VIN ≤ 12.6V 2.5 12.6 V 100 120 µA 3.4 8.0 µA/V Maxim Integrated │  4 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Electrical Characteristics—MAX6166 (VOUT = 2.500V) (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage Output Voltage Temperature Coefficient (Note 2) Dropout Voltage (Note 4) SYMBOL VOUT TCVOUT VIN - VOUT Line Regulation ΔVOUT/ ΔVIN Load Regulation ΔVOUT/ ΔIOUT OUT Short-Circuit Current ISC Long-Term Stability ΔVOUT/ time Output Voltage Hysteresis (Note 3) ΔVOUT/ cycle CONDITIONS MIN TYP MAX MAX6166A 2.498 2.500 2.502 MAX6166B 2.495 2.500 2.505 MAX6166A 2 5 MAX6166B 4 10 IOUT = 1mA 50 200 mV VOUT + 0.2V ≤ VIN ≤ 12.6V 60 250 µV/V Sourcing: 0 ≤ IOUT ≤ 5mA 0.5 0.9 Sinking: -2mA ≤ IOUT ≤ 0 1.6 5 Short to GND 110 Short to IN 25 1000hr at +25°C 80 ppm/ 1000hr 125 ppm f = 0.1Hz to 10Hz 27 µVp-p f = 10Hz to 10kHz 30 µVRMS VIN = 5V ±100mV, f = 120Hz 76 dB VOUT to 0.1% of final value, COUT = 50pF 115 µs TA = +25°C UNITS V ppm/°C mV/mA mA DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time eOUT VOUT/VIN tR INPUT CHARACTERISTICS Supply Voltage Range VIN Quiescent Supply Current IIN Change in Supply Current ΔIIN/ΔVIN www.maximintegrated.com Guaranteed by line-regulation test VOUT + 0.2V ≤ VIN ≤ 12.6V VOUT + 0.2 12.6 V 100 120 µA 3.2 8.0 µA/V Maxim Integrated │  5 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Electrical Characteristics—MAX6163 (VOUT = 3.000V) (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage Output Voltage Temperature Coefficient (Note 2) Dropout Voltage (Note 4) SYMBOL VOUT TCVOUT VIN - VOUT Line Regulation ΔVOUT/ ΔVIN Load Regulation ΔVOUT/ ΔIOUT OUT Short-Circuit Current ISC Long-Term Stability ΔVOUT/ time Output Voltage Hysteresis (Note 3) ΔVOUT/ cycle CONDITIONS MIN TYP MAX MAX6163A 2.998 3.000 3.002 MAX6163B 2.995 3.000 3.005 MAX6163A 2 5 MAX6163B 4 10 IOUT = 1mA 50 200 mV VOUT + 0.2V ≤ VIN ≤ 12.6V 83 300 µV/V Sourcing: 0 ≤ IOUT ≤ 5mA 0.5 0.9 Sinking: -2mA ≤ IOUT ≤ 0 1.8 5 Short to GND 110 Short to IN 25 1000hr at +25°C 80 ppm/ 1000hr 125 ppm f = 0.1Hz to 10Hz 35 µVp-p f = 10Hz to 10kHz 40 µVRMS VIN = 5V ±100mV, f = 120Hz 76 dB VOUT to 0.1% of final value, COUT = 50pF 115 µs TA = +25°C UNITS V ppm/°C mV/mA mA DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time eOUT VOUT/VIN tR INPUT CHARACTERISTICS Supply Voltage Range VIN Quiescent Supply Current IIN Change in Supply Current ΔIIN/ΔVIN www.maximintegrated.com Guaranteed by line-regulation test VOUT + 0.2V ≤ VIN ≤ 12.6V VOUT + 0.2 12.6 V 100 120 µA 3.2 8.0 µA/V Maxim Integrated │  6 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Electrical Characteristics—MAX6164 (VOUT = 4.096V) (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage Output Voltage Temperature Coefficient (Note 2) Dropout Voltage (Note 4) SYMBOL VOUT TCVOUT VIN - VOUT Line Regulation ΔVOUT/ ΔVIN Load Regulation ΔVOUT/ ΔIOUT OUT Short-Circuit Current ISC Long-Term Stability ΔVOUT/ time Output Voltage Hysteresis (Note 3) ΔVOUT/ cycle CONDITIONS MIN TYP MAX MAX6164A 4.094 4.096 4.098 MAX6164B 4.091 4.096 4.101 MAX6164A 2 5 MAX6164B 4 10 IOUT = 1mA 50 200 mV VOUT + 0.2V ≤ VIN ≤ 12.6V 140 300 µV/V Sourcing: 0 ≤ IOUT ≤ 5mA 0.6 0.9 Sinking: -2mA ≤ IOUT ≤ 0 2.0 7.0 Short to GND 110 Short to IN 25 1000hr at +25°C 80 ppm/ 1000hr 125 ppm f = 0.1Hz to 10Hz 50 µVp-p f = 10Hz to 10kHz 50 µVRMS VIN = 5V ±100mV, f = 120Hz 72 dB VOUT to 0.1% of final value, COUT = 50pF 190 µs TA = +25°C UNITS V ppm/°C mV/mA mA DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time eOUT VOUT/VIN tR INPUT CHARACTERISTICS Supply Voltage Range VIN Quiescent Supply Current IIN Change in Supply Current ΔIIN/ΔVIN www.maximintegrated.com Guaranteed by line-regulation test VOUT + 0.2V ≤ VIN ≤ 12.6V VOUT + 0.2 12.6 V 100 120 µA 3.2 8.0 µA/V Maxim Integrated │  7 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Electrical Characteristics—MAX6167 (VOUT = 4.500V) (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage Output Voltage Temperature Coefficient (Note 2) Dropout Voltage (Note 4) SYMBOL VOUT TCVOUT VIN - VOUT Line Regulation ΔVOUT/ ΔVIN Load Regulation ΔVOUT/ ΔIOUT OUT Short-Circuit Current ISC Long-Term Stability ΔVOUT/ time Output Voltage Hysteresis (Note 3) ΔVOUT/ cycle CONDITIONS MIN TYP MAX MAX6167A 4.498 4.500 4.502 MAX6167B 4.495 4.500 4.505 MAX6167A 2 5 MAX6167B 4 10 IOUT = 1mA 50 200 mV VOUT + 0.2V ≤ VIN ≤ 12.6V 160 450 µV/V Sourcing: 0 ≤ IOUT ≤ 5mA 0.6 0.9 Sinking: -2mA ≤ IOUT ≤ 0 2.3 8.0 Short to GND 110 Short to IN 25 1000hr at +25°C 80 ppm/ 1000hr 125 ppm f = 0.1Hz to 10Hz 55 µVp-p f = 10Hz to 10kHz 55 µVRMS VIN = 5V ±100mV, f = 120Hz 70 dB VOUT to 0.1% of final value, COUT = 50pF 230 µs TA = +25°C UNITS V ppm/°C mV/mA mA DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time eOUT VOUT/VIN tR INPUT CHARACTERISTICS Supply Voltage Range VIN Quiescent Supply Current IIN Change in Supply Current ΔIIN/ΔVIN www.maximintegrated.com Guaranteed by line-regulation test VOUT + 0.2V ≤ VIN ≤ 12.6V VOUT + 0.2 12.6 V 100 120 µA 3.1 8.0 µA/V Maxim Integrated │  8 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Electrical Characteristics—MAX6165 (VOUT = 5.000V) (VIN = +5V, IOUT = 0, TA = TMIN to TMAX, unless otherwise specified. Typical values are at TA = +25°C.) (Note 1) PARAMETER Output Voltage Output Voltage Temperature Coefficient (Note 2) Dropout Voltage (Note 4) SYMBOL VOUT TCVOUT VIN - VOUT Line Regulation ΔVOUT/ ΔVIN Load Regulation ΔVOUT/ ΔIOUT OUT Short-Circuit Current ISC Long-Term Stability ΔVOUT/ time Output Voltage Hysteresis (Note 3) ΔVOUT/ cycle CONDITIONS MIN TYP MAX MAX6165A 4.998 5.000 5.002 MAX6165B 4.995 5.000 5.005 MAX6165A 2 5 MAX6165B 4 10 IOUT = 1mA 50 200 mV VOUT + 0.2V ≤ VIN ≤ 12.6V 180 400 µV/V Sourcing: 0 ≤ IOUT ≤ 5mA 0.6 0.9 Sinking: -2mA ≤ IOUT ≤ 0 2.4 8.0 Short to GND 110 Short to IN 25 1000hr at +25°C 80 ppm/ 1000hr 125 ppm f = 0.1Hz to 10Hz 60 µVp-p f = 10Hz to 10kHz 60 µVRMS VIN = 5.5V ±100mV, f = 120Hz 65 dB VOUT to 0.1% of final value, COUT = 50pF 300 µs TA = +25°C UNITS V ppm/°C mV/mA mA DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time eOUT VOUT/VIN tR INPUT CHARACTERISTICS Supply Voltage Range VIN Quiescent Supply Current IIN Change in Supply Current ΔIIN/ΔVIN Guaranteed by line-regulation test VOUT + 0.2V ≤ VIN ≤ 12.6V VOUT + 0.2 12.6 V 100 120 µA 3.1 8.0 µA/V Note 1: 100% production tested at TA = +25°C. Guaranteed by design for TA = -40°C to +85°C. Note 2: Temperature Coefficient is specified by the “box” method; i.e., the maximum ΔVOUT is divided by the maximum ΔT. Note 3: Thermal Hysteresis is defined as the change in TA = +25°C output voltage before and after temperature cycling of the device (from TA = TMIN to TMAX). Initial measurement at TA = +25°C is followed by temperature cycling the device to TA = +85°C then to TA = -40°C, and another measurement at TA = +25°C is compared to the original measurement at TA = +25°C. Note 4: Dropout voltage is the minimum input voltage at which VOUT changes ≤ 0.2% from VOUT at VIN = 5.0V (VIN = 5.5V for MAX6165). www.maximintegrated.com Maxim Integrated │  9 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Typical Operating Characteristics (VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 5) 1.2501 1.2500 1.2499 1.2498 3 TYPICAL PARTS 1.2497 5.0000 4.9995 1.2495 4.9980 10 25 40 55 70 85 40 55 70 85 0 192 384 -90 192 384 576 TIME (hrs) 768 TA = +25°C 200 100 -100 -200 2 4 3 2 TA = -40°C TA = +25°C -1 -2 -2 0 LOAD CURRENT (mA) www.maximintegrated.com 2 4 6 8 10 TA = -40°C -200 TA = +85°C -400 -600 TA = +25°C -800 0 -2 -4 -2 0 2 LOAD CURRENT (mA) 0.30 TA = +85°C 0.25 0.20 13 TA = +25°C 0.15 0.10 TA = -40°C 0.05 TA = -40°C -4 11 MAX6166 DROPOUT VOLTAGE vs. LOAD CURRENT TA = +25°C -6 9 MAX6165 LOAD REGULATION 6 2 7 INPUT VOLTAGE (V) 8 4 5 INPUT VOLTAGE (V) TA = +85°C 10 -6 0 -1200 12 12 OUTPUT VOLTAGE CHANGE (mV) MAX6161/68 toc07 TA = +85°C 200 960 -1000 MAX6161 LOAD REGULATION 4 TA = +85°C TA = -40°C 0 -300 960 MAX6161/68 toc05 300 768 MAX6161/68 toc09 -80 -4 25 OUTPUT VOLTAGE CHANGE (µV) -70 0 10 DROPOUT VOLTAGE (V) -60 1 0 MAX6161/68 toc08 DRIFT (ppm) -40 -25 -10 MAX6165 LINE REGULATION -50 OUTPUT VOLTAGE CHANGE (mV) -30 -40 MAX6161 LINE REGULATION -40 -3 -20 MAX6165 LONG-TERM DRIFT -30 5 0 -10 576 TIME (hrs) -20 0 10 TEMPERATURE (°C) -10 -100 20 TEMPERATURE (°C) MAX6161/68 toc04 0 0 40 4.9990 4.9985 -40 -25 -10 50 30 5.0005 1.2496 MAX6161/68 toc03 5.0010 MAX6161 LONG-TERM DRIFT 60 DRIFT (ppm) 1.2502 3 TYPICAL PARTS 5.0015 OUTPUT VOLTAGE CHANGE (µV) OUTPUT VOLTAGE (V) 1.2503 5.0020 MAX6161/68 toc02 1.2504 OUTPUT VOLTAGE (V) MAX6161/68 toc01 1.2505 MAX6165 OUTPUT VOLTAGE TEMPERATURE DRIFT MAX6161/68 toc06 MAX6161 OUTPUT VOLTAGE TEMPERATURE DRIFT 4 6 0 0 1 2 3 4 5 LOAD CURRENT (mA) Maxim Integrated │  10 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Typical Operating Characteristics (continued) (VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 5) -20 TA = -40°C 0 1 2 3 4 -50 -50 -70 -60 -80 -70 0.001 0.01 0.1 1 10 100 -80 1000 0.1 0.001 10 1000 MAX6165 SUPPLY CURRENT vs. SUPPLY VOLTAGE MAX6161 SUPPLY CURRENT vs. TEMPERATURE 124 TA = -40°C 126 TA = +85°C 120 114 TA = +25°C 108 102 2 4 6 8 10 12 90 14 5 SUPPLY VOLTAGE (V) 138 132 126 VCC = +12.6V 120 114 108 102 -40 -15 10 9 10 11 12 13 35 60 85 132 VCC = +5V 124 VCC = +2.5V -40 -15 10 35 60 SUPPLY VOLTAGE (V) TEMPERATURE (°C) MAX6161 OUTPUT IMPEDANCE vs. FREQUENCY MAX6165 OUTPUT IMPEDANCE vs. FREQUENCY 220 200 180 160 140 120 100 80 60 0 140 100 14 180 85 160 140 120 100 80 60 40 20 20 TEMPERATURE (°C) www.maximintegrated.com 8 40 VCC = +5.2V 96 7 VCC = +12.6V 148 108 MAX6161/68 toc17 144 OUTPUT IMPEDANCE (Ω) MAX6161/68 toc16 MAX6165 SUPPLY CURRENT vs. TEMPERATURE 6 156 116 TA = -40°C 96 108 164 MAX6161/68 toc18 TA = +25°C 132 132 172 SUPPLY CURRENT (µA) 140 138 180 OUTPUT IMPEDANCE (Ω) TA = +85°C 148 144 SUPPLY CURRENT (µA) 156 150 MAX6161/68 toc15 MAX6161 SUPPLY CURRENT vs. SUPPLY VOLTAGE MAX6161/68 toc14 FREQUENCY (kHz) 116 SUPPLY CURRENT (µA) -40 FREQUENCY (kHz) 164 90 -30 LOAD CURRENT (mA) MAX6161/68 toc13 SUPPLY CURRENT (µA) -40 -90 5 172 150 -20 -60 0.05 100 -10 PSRR (dB) TA = +25°C 0.10 180 0 -30 0.15 0 MAX6165 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY MAX6161/68 toc11 MAX6161/68 toc10 TA = +85°C 0.20 0 -10 PSRR (dB) DROPOUT VOLTAGE (V) 0.25 MAX6161 POWER-SUPPLY REJECTION RATIO vs. FREQUENCY MAX6161/68 toc12 MAX6165 DROPOUT VOLTAGE vs. LOAD CURRENT 0.001 0.1 10 FREQUENCY (kHz) 1000 0 0.001 0.1 10 1000 FREQUENCY (kHz) Maxim Integrated │  11 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Typical Operating Characteristics (continued) (VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 5) MAX6165 NOISE MAX6161/68 toc19 MAX6161/68 toc20 MAX6161 0.1Hz TO 10Hz OUTPUT NOISE VOUT 10µV/div VOUT 10µV/div MAX6161 TURN-ON TRANSIENT (CL = 50pF) MAX6165 TURN-ON TRANSIENT (CL = 50pF) VIN 5V/div MAX6161/67 toc22 1s/div MAX6161/68 toc21 1s/div VIN 5V/div VOUT 500mV/div VOUT 2V/div 10µs/div 40µs/div MAX6161 LOAD TRANSIENT (IOUT = ±250µA, VIN = 5.0, CL = 0) MAX6165 LOAD TRANSIENT (IOUT = ±250µA, CL = 0, VIN = 5.5V) MAX6161/68 toc24 MAX6161/68 toc23 +250µA IOUT 500µA/div -250µA VOUT AC-COUPLED 100mV/div -250µA VOUT AC-COUPLED 50mV/div 400µs/div www.maximintegrated.com +250µA IOUT 500µA/div 400µs/div Maxim Integrated │  12 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Typical Operating Characteristics (continued) (VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 5) MAX6161 LOAD TRANSIENT (IOUT = ±250µA, VIN = 5.0V, CL = 1µF) MAX6165 LOAD TRANSIENT (IOUT = ±250µA, CL = 1µF, VIN = 5.5V) MAX6161/68 toc25 MAX6161/68 toc26 +250µA IOUT 500µA/div -250µA VOUT AC-COUPLED 10mV/div +250µA IOUT 500µA/div -250µA VOUT AC-COUPLED 20mV/div 400µs/div 400µs/div MAX6161 LOAD TRANSIENT (VIN = 5.0V, CL = 0, IOUT = ±2mA) MAX6165 LOAD TRANSIENT (CL = 0, IOUT = ±2mA, VIN = 5.5V) MAX6161/68 toc27 MAX6161/68 toc28 +2mA IOUT 5mA/div -2mA VOUT AC-COUPLED 100mV/div +2mA IOUT 5mA/div -2mA VOUT AC-COUPLED 50mV/div 400µs/div 400µs/div MAX6161 LOAD TRANSIENT (VIN = 5.0V, CL = 1µF, IOUT = ±2mA) MAX6165 LOAD TRANSIENT (CL = 1µF, IOUT = ±2mA, VIN = 5.5V) MAX6161/68 toc29 +2mA IOUT 5mA/div -2mA VOUT AC-COUPLED 50mV/div +2mA IOUT 5mA/div -2mA VOUT AC-COUPLED 20mV/div 400µs/div www.maximintegrated.com MAX6161/68 toc30 400µs/div Maxim Integrated │  13 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Typical Operating Characteristics (continued) (VIN = +5V for MAX6161–MAX6168, VIN = +5.5V for MAX6165, IOUT = 0, TA = +25°C, unless otherwise noted.) (Note 5) MAX6161 LOAD TRANSIENT (VIN = 5.0V, CL = 0, IOUT = ±4mA) MAX6165 LOAD TRANSIENT (IOUT = ±5mA, CL = 0, VIN = 5.5V) MAX6161/68 toc31 MAX6161/68 toc32 +4mA IOUT 5mA/div -4mA +5mA IOUT 5mA/div -5mA VOUT AC-COUPLED 100mV/div VOUT AC-COUPLED 200mV/div 400µs/div 400µs/div MAX6161 LOAD TRANSIENT (VIN = 5.0V, CL = 1µF, IOUT = ±4mA) MAX6165 LOAD TRANSIENT (IOUT = ±5mA, CL = 1µF, VIN = 5.5V) MAX6161/68 toc33 MAX6161/68 toc34 +4mA IOUT 5mA/div -4mA VOUT AC-COUPLED 50mV/div +5mA IOUT 5mA/div -5mA VOUT AC-COUPLED 50mV/div 400µs/div 400µs/div MAX6161 LINE TRANSIENT (CL = 0) MAX6165 LINE TRANSIENT (CL = 0) MAX6161/68 toc35 +0.25V VIN 500mV/div -0.25V VOUT AC-COUPLED 20mV/div MAX6161/68 toc36 +0.25V VIN 500mV/div -0.25V VOUT AC-COUPLED 20mV/div 40µs/div 40µs/div Note 5: Many of the Typical Operating Characteristics of the MAX6161 family are extremely similar. The extremes of these characteristics are found in the MAX6161 (1.25V output) and the MAX6165 (5.0V output). The Typical Operating Characteristics of the remainder of the MAX6161 family typically lie between these two extremes and can be estimated based on their output voltages. www.maximintegrated.com Maxim Integrated │  14 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Pin Description PIN NAME FUNCTION 1, 3, 5, 7, 8 N.C. 2 IN 4 GND Ground 6 OUT Reference Output No Connection. Not internally connected. Input Voltage Applications Information Input Bypassing For the best line-transient performance, decouple the input with a 0.1μF ceramic capacitor as shown in the Typical Operating Circuit. Locate the capacitor as close to IN as possible. When transient performance is less important, no capacitor is necessary. Output/Load Capacitance Devices in the MAX6161 family do not require an output capacitor for frequency stability. In applications where the load or the supply can experience step changes, an output capacitor of at least 0.1μF will reduce the amount of overshoot (undershoot) and improve the circuit’s transient response. Many applications do not require an external capacitor, and the MAX6161 family can offer a significant advantage in applications when board space is critical. Output Voltage Hysteresis Output voltage hysteresis is the change in the input voltage at TA = +25°C before and after the device is cycled over its entire operating temperature range. Hysteresis is caused by differential package stress appearing across the bandgap core transistors. The typical temperature hysteresis value is 125ppm. Turn-On Time These devices typically turn on and settle to within 0.1% of their final value in 50μs to 300μs, depending on the output voltage (see electrical table of part used). The turn-on time can increase up to 1.5ms with the device operating at the minimum dropout voltage and the maximum load. Typical Operating Circuit Supply Current The quiescent supply current of the series-mode MAX6161 family is typically 100μA and is virtually independent of the supply voltage, with only an 8μA/V (max) variation with supply voltage. Unlike series references, shunt-mode references operate with a series resistor connected to the power supply. The quiescent current of a shuntmode reference is thus a function of the input voltage. Additionally, shunt-mode references have to be biased at the maximum expected load current, even if the load current is not present at the time. In the MAX6161 family, the load current is drawn from the input voltage only when required, so supply current is not wasted and efficiency is maximized at all input voltages. This improved efficiency reduces power dissipation and extends battery life. When the supply voltage is below the minimum specified input voltage (as during turn-on), the devices can draw up to 400μA beyond the nominal supply current. The input voltage source must be capable of providing this current to ensure reliable turn-on. www.maximintegrated.com +SUPPLY INPUT (SEE SELECTOR GUIDE) IN OUT 0.1µF* MAX6161– MAX6168 REFERENCE OUT 1µF* GND *CAPACITORS ARE OPTIONAL. Chip Information TRANSISTOR COUNT: 117 PROCESS: BiCMOS Maxim Integrated │  15 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Selector Guide PART OUTPUT VOLTAGE (V) INITIAL ACCURACY (mV) TEMPERATURE COEFFICIENT (ppm/°C) MAX6161A 1.250 ±2 10 MAX6161B 1.250 ±4 15 MAX6168A 1.800 ±2 5 MAX6168B 1.800 ±5 10 MAX6162A 2.048 ±2 5 MAX6162B 2.048 ±5 10 MAX6166A 2.500 ±2 5 MAX6166B 2.500 ±5 10 MAX6163A 3.000 ±2 5 MAX6163B 3.000 ±5 10 MAX6164A 4.096 ±2 5 MAX6164B 4.096 ±5 10 MAX6167A 4.500 ±2 5 MAX6167B 4.500 ±5 10 MAX6165A 5.000 ±2 5 MAX6165B 5.000 ±5 10 Package Information Ordering Information PART* TEMP RANGE PINOUTPUT PACKAGE VOLTAGE (V) MAX6161_ESA+ -40°C to +85°C 8 SO 1.250 MAX6162_ESA+ -40°C to +85°C 8 SO 2.048 MAX6163_ESA+ -40°C to +85°C 8 SO 3.000 MAX6164_ESA+ -40°C to +85°C 8 SO 4.096 MAX6165_ESA+ -40°C to +85°C 8 SO 5.000 MAX6166_ESA+ -40°C to +85°C 8 SO 2.500 MAX6167_ESA+ -40°C to +85°C 8 SO 4.500 For the latest package outline information and land patterns (footprints), go to www.maximintegrated.com/packages. Note that a “+”, “#”, or “-” in the package code indicates RoHS status only. Package drawings may show a different suffix character, but the drawing pertains to the package regardless of RoHS status. PACKAGE TYPE 8 SO PACKAGE CODE S8+2 OUTLINE NO. 21-0041 LAND PATTERN NO. 90-0096 MAX6168_ESA+ -40°C to +85°C 8 SO 1.800 +Denotes a lead(Pb)-free package/RoHS-compliant package. *Insert the code for the desired initial accuracy and temperature coefficient (from the Selector Guide) in the blank to complete the part number. Note: For leaded version, contact factory. www.maximintegrated.com Maxim Integrated │  16 MAX6161–MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References Revision History REVISION NUMBER REVISION DATE 4 12/08 DESCRIPTION Updated part numbers in Ordering Information table PAGES CHANGED 1 For pricing, delivery, and ordering information, please contact Maxim Direct at 1-888-629-4642, or visit Maxim Integrated’s website at www.maximintegrated.com. Maxim Integrated cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a Maxim Integrated product. No circuit patent licenses are implied. Maxim Integrated 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 Characteristics table are guaranteed. Other parametric values quoted in this data sheet are provided for guidance. Maxim Integrated and the Maxim Integrated logo are trademarks of Maxim Integrated Products, Inc. ©  2008 Maxim Integrated Products, Inc. │  17