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Part: MAX6165_ESA
Category:
Power Management
-> Voltage References
Description: MAX6161, MAX6162, MAX6163, MAX6164, MAX6165, MAX6166, MAX6167, MAX6168 Precision, Micropower, Low-Dropout, High-Output-Current, SO-8 Voltage References
Company: Maxim Integrated Products
Datasheet: Download MAX6165_ESA datasheet File size : 443 kB
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Datasheet text preview:
19-1650; Rev 2; 2/02
Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References
General Description
The MAX6161MAX6168 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 ( m a x ) and an initial accuracy of ±2mV (max). Specifications apply to the extended temperature range (-40°C to +85°C). The MAX6161MAX6168 typically draw only 90µA of s u p p l y current and can source 5mA (4mA for MAX6161) or sink 2mA of load current. Unlike conventional shunt-mode (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 compens a t i o n 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 battery-operated, high-performance, low-voltage systems. T h e MAX6161MAX6168 are available in 8-pin SO packages.
____________________________Features
o ±2mV (max) Initial Accuracy o 5ppm/°C (max) Temperature Coefficient o 5mA Source Current at 0.9mV/mA o 2mA Sink Current at 2.5mV/mA o Stable with 1µF Capacitive Loads o No External Capacitor Required o 90µA (typ) Quiescent Supply Current o 200mV (max) Dropout at 1mA Load Current o 60µV/V Line Regulation o Output Voltage Options: 1.25V, 1.8V, 2.048V, 2.5V, 3V, 4.096V, 4.5V, 5V
MAX6161MAX6168
Ordering Information
PART* MAX6161_ESA MAX6162_ESA MAX6163_ESA MAX6164_ESA MAX6165_ESA MAX6166_ESA MAX6167_ESA MAX6168_ESA TEMP RANGE -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C -40°C to +85°C PINPACKAGE 8 SO 8 SO 8 SO 8 SO 8 SO 8 SO 8 SO 8 SO OUTPUT VOLTAGE (V) 1.250 2.048 3.000 4.096 5.000 2.500 4.500 1.800
________________________Applications
Analog-to-Digital Converters (ADCs) Portable Battery-Powered Systems Notebook Computers PDAs, GPS, DMMs Cellular Phones Precision +3V/+5V Systems
*Insert the code for the desired initial accuracy and temperature coefficient (from the Selector Guide) in the blank to complete the part number.
___________________Pin Configuration
TOP VIEW
N.C. IN N.C.
1 2 3
8 7
N.C. N.C. OUT N.C.
MAX6161 MAX6168
6 5
GND 4
Typical Operating Circuit and Selector Guide appear at end of data sheet.
SO
________________________________________________________________ Maxim Integrated Products
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Precision, Micropower, Low-Dropout, HighOutput-Current, SO-8 Voltage References MAX6161MAX6168
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.)
PARAMETER Output Voltage Output Voltage Temperature Coefficient (Note 1) Line Regulation Load Regulation OUT Short-Circuit Current Long-Term Stability Output Voltage Hysteresis (Note 2) DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time INPUT CHARACTERISTICS Supply Voltage Range Quiescent Supply Current Change in Supply Current VIN IIN IIN/VIN 2.5V < VIN < 12.6V Guaranteed by line-regulation test 2.5 90 3.2 12.6 120 8.0 V µA µA/V eOUT VOUT/VIN tR f = 0.1Hz to 10Hz f = 10Hz to 10kHz VIN = +5V ±100mV, f = 120Hz VOUT to 0.1% of final value, COUT = 50pF 20 15 80 50 µVp-p µVRMS dB µs SYMBOL V OUT TCVOUT VOUT/ VIN VOUT/ IOUT ISC VOUT/ time VOUT/ cycle TA = +25°C MAX6161A MAX6161B 2.5V < VIN < 12.6V Sourcing: 0 < IOUT < 4mA Sinking: -2mA < IOUT < 0 Short to GND Short to IN 1000hr at +25°C CONDITIONS MAX6161A MAX6161B MIN 1.248 1.246 TYP 1.250 1.250 4 6 6 0.5 1.3 110 25 80 80 MAX 1.252 1.254 10 15 60 0.9 2.5 UNITS V ppm/°C µV/V mV/mA mA ppm/ 1000hr ppm
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Precision, Micropower, Low-Dropout, HighOutput-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.)
PARAMETER Output Voltage Output Voltage Temperature Coefficient (Note 1) Line Regulation Load Regulation OUT Short-Circuit Current Long-Term Stability Output Voltage Hysteresis (Note 2) DYNAMIC CHARACTERISTICS Noise Voltage Ripple Rejection Turn-On Settling Time INPUT CHARACTERISTICS Supply Voltage Range Quiescent Supply Current Change in Supply Current VIN IIN IIN/VIN 2.5V < VIN < 12.6V Guaranteed by line-regulation test 2.5 90 3.4 12.6 120 8.0 V µA µA/V eOUT VOUT/ VIN tR f = 0.1Hz to 10Hz f = 10Hz to 10kHz VIN = +5V ±100mV, f = 120Hz VOUT to 0.1% of final value, COUT = 50pF 22 25 78 100 µVp-p µVRMS dB µs SYMBOL V OUT TCVOUT VOUT/ VIN VOUT/ IOUT ISC VOUT/ time VOUT/ cycle TA = +25°C MAX6168A MAX6168B 2.5V VIN 12.6V Sourcing: 0 < IOUT < 5mA Sinking: -2mA < IOUT < 0 Short to GND Short to IN 1000hr at +25°C CONDITIONS MAX6168A MAX6168B MIN 1.798 1.795 TYP 1.800 1.800 2 4 42 0.5 1.5 110 25 80 80 MAX 1.802 1.805 5 10 200 0.9 4 UNITS V ppm/°C µV/V mV/mA mA ppm/ 1000hr ppm
MAX6161MAX6168
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