TP1941 3PEAK | Alldatasheet
Document overview
- Manufacturer or author: Provided By ALLDATASHEET.COM(FREE DATASHEET DOWNLOAD SITE)
- PDF pages: 23
Technical content
Features
Fast Response Time: 68 ns Propagation Delay Ultra-Low Supply Current: 46 μA per Channel Offset Voltage: ± 3.0 mV Maximum Offset Voltage Temperature Drift: 0.3 μV/°C Input Bias Current: 6 pA Typical Internal Hysteresis Ensures Clean Switching Input Common-Mode Range Extends 200 mV No Phase Reversal for Overdriven Inputs Push-Pull, CMOS/TTL Compatible Output Shut-down Function (TP1941N Only) Output Latch (TP1941NU Only) Down to 1.8V Supply Voltage: 1.8V to 5.5V Green, Space-Saving SC70 Package Available
Applications
High-speed Line or Digital Line Receivers High Speed Sampling Circuits Peak and Zero-crossing Detectors Threshold Detectors/Discriminators Sensing at Ground or Supply Line Logic Level Shifting or Translation Window Comparators IR Receivers Clock and Data Signal Restoration Telecom, Portable Communications Portable and Battery Powered Systems
Description
The 3PEAK INCORPORATED TP194x families of CMOS/TTL compatible comparators are offered in single, dual, and quad configurations, and are exceptionally versatile and easy to use. The TP194x incorporate 3PEAK’s proprietary and patented design techniques to achieve the ultimate combination of high-speed (68ns propagation delay under 1.8~5.5V wide supply range) and low power consuming (46μA quiescent current per comparator). These comparators are optimized for low power 1.8V, single-supply applications with greater than rail-to-rail input operation, and also operate with ±0.9V to ±2.75V dual supplies. The input common mode voltage range extends 200mV below ground and 200mV above supply, allowing both ground and supply sensing. The internal input hysteresis eliminates output switching due to internal input noise voltage, reducing current draw. The push-pull output supports rail-to-rail output swing, and interfaces with CMOS/TTL logic. The output toggle frequency can reach a typical of 4 MHz while limiting supply current surges and dynamic power consumption during switching. The TP1941 single comparators are available in shout-down function, output latch version, and the tiny SC70/SOT23 package for space-conservative designs. All devices are specified for the temperature range of –40°C to +85°C. 3PEAK and the 3PEAK logo are registered trademarks of 3PEAK INCORPORATED. All other trademarks are the property of their respective owners. VOUTRoR2R1TP1941RDVDD The TP1941 Comparator in IR Receivers
Related Products
Fast 30ns, Low Power, Internal Hysteresis, ±3mV Maximum VOS, – 0.2V to VDD+ 0.2V RRI, Push-Pull (CMOS/TTL) Output Comparators TP1951/TP1951N /TP1952/TP1954 Fast 30ns, Low Power, Internal Hysteresis, ±3mV Maximum VOS, – 0.2V to VDD+ 0.2V RRI, Open-Drain Output Comparators TP1955/TP1955N /TP1956/TP1958 950ns, 3µ A, 1.8V, ±2.5mV VOS-MAX, Internal Hysteresis, RRI, Push-Pull Output Comparators TP1931 /TP1932/TP1934 950ns, 3µ A, 1.8V, ±2.5mV VOS-MAX, Internal Hysteresis, RRI, Open-Drain Comparators TP1935 /TP1936/TP1938 Ultra-low 200nA, 13µs, 1.6V, ±2mV VOS-MAX, Internal Hysteresis, RRI, Push-Pull (CMOS/TTL) Output Comparators TP2011 /TP2012/TP2014 Ultra-low 200nA, 13µs, 1.6V, ±2mV VOS-MAX, Internal Hysteresis, RRI, Open-Drain Output Comparators TP2015 /TP2016/TP2018 DEVICE DESCRIPTION
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators REV1.1 www.3peakic.com.cn Pin Configuration (Top View) Order Information Model Name Order Number Package Transport Media, Quantity Marking Information TP1941 TP1941-TR 5-Pin SOT23 Tape and Reel, 3000 C4TYW (1) TP1941-CR 5-Pin SC70 Tape and Reel, 3000 C4CYW (1) TP1941-SR 8-Pin SOIC Tape and Reel, 4000 1941S TP1941U TP1941U-TR 5-Pin SOT23 Tape and Reel, 3000 C4AYW (1) TP1941U-CR 5-Pin SC70 Tape and Reel, 3000 C4BYW (1) TP1941U2 TP1941U2-TR 5-Pin SOT23 Tape and Reel, 3000 C4EYW (1) TP1941N TP1941N-TR 6-Pin SOT23 Tape and Reel, 3000 C4NYW (1) TP1941N-SR 8-Pin SOIC Tape and Reel, 4000 1941NS TP1941NU TP1941NU-SR 8-Pin SOIC Tape and Reel, 4000 1941NUS TP1941NU-VR 8-Pin MSOP Tape and Reel, 3000 1941NU TP1941NU-DR 8-Pin DIP Tape and Reel, 3000 1941NUD TP1942 TP1942-TR 8-Pin SOT23 Tape and Reel, 3000 C42YW (1) TP1942-SR 8-Pin SOIC Tape and Reel, 4000 1942S TP1942-VR 8-Pin MSOP Tape and Reel, 3000 1942V TP1942-DR 8-Pin DIP Tape and Reel, 3000 1942D TP1942U TP1942U-SR 8-Pin SOIC Tape and Reel, 4000 1942US TP1942U-VR 8-Pin MSOP Tape and Reel, 3000 1942U TP1944 TP1944-SR 14-Pin SOIC Tape and Reel, 2500 1944S TP1944-TR 14-Pin TSSOP Tape and Reel, 3000 1944T TP1944-DR 14-Pin DIP Tape and Reel, 3000 1944D Note (1): ‘YW’ is date coding scheme. 'Y' stands for calendar year, and 'W' stands for single workweek coding scheme.
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators www.3peakic.com REV1.0 Absolute Maximum Ratings Note 1 Note 1: Stresses beyond those listed under Absolute Maximum Ratings may cause permanent damage to the device. Exposure to any Absolute Maximum Rating condition for extended periods may affect device reliability and lifetime. Note 2: The inputs are protected by ESD protection diodes to each power supply. If the input extends more than 500mV beyond the power supply, the input current should be limited to less than 10mA. Note 3: A heat sink may be required to keep the junction temperature below the absolute maximum. This depends on the power supply voltage and how many amplifiers are shorted. Thermal resistance varies with the amount of PC board metal connected to the package. The specified values are for short traces connected to the leads. ESD, Electrostatic Discharge Protection Symbol Parameter Condition Minimum Level Unit HBM Human Body Model ESD MIL-STD-883H Method 3015.8 8 kV CDM Charged Device Model ESD JEDEC-EIA/JESD22-C101E 2 kV
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators REV1.1 www.3peakic.com.cn
Electrical Characteristics
The ● denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 27°C. VDD = +1.8V to +5.5V, VIN+ = VDD, VIN- = 1.2V, RPU=10kΩ, CL =15pF. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS VDD Supply Voltage ● 1.8 5.5 V VOS Input Offset Voltage Note 1 V CM = 1.2V -3 ±0.6 +3 mV VOS TC Input Offset Voltage Drift Note 1 V CM = 1.2V 0.3 μV/°C VHYST Input Hysteresis Voltage Note 1 V CM = 1.2V 4 6 8 mV VHYST TC Input Hysteresis Voltage Drift Note 1 VCM = 1.2V 20 μV/°C IB Input Bias Current V CM = 1.2V 6 pA IOS Input Offset Current 4 pA RIN Input Resistance > 100 GΩ CIN Input Capacitance Differential Common Mode 2 4 pF CMRR Common Mode Rejection Ratio VCM = VSS to VDD 50 70 dB VCM Common-mode Input Voltage Range V SS-0.1 V DD+0.1 V PSRR Power Supply Rejection Ratio 60 75 dB VOH High-Level Output Voltage I OUT=-1mA ● VDD-0.3 V VOL Low-Level Output Voltage I OUT=1mA ● V SS+0.3 V ISC Output Short-Circuit Current Sink or source current 25 mA IQ Quiescent Current per Comparator 46 58 μA IQ(off) Supply Current in Shutdown Note 2 1.5 μA VIL SHDN Input Low Voltage Note 2 Disable ● 0.2V DD V VIH SHDN Input High Voltage Note 2 Enable ● 0.8VDD V tON Turn-On Time Note 2 SHDN Toggle from V SS to VDD 15 μs tOFF Turn-Off Time Note 2 SHDN Toggle from V DD to VSS 1 μs tLPD Latch Propagation Delay Note 3 200 ns tR Rising Time 5 ns tF Falling Time 5 ns TPD+ Propagation Delay (Low-to-High) Overdrive=100mV, VIN- =1.2V 68 ns TPD- Propagation Delay (High-to-Low) Overdrive=100mV, VIN- =1.2V 72 ns TPDSKEW Propagation Delay Skew Overdrive=100mV, VIN- =1.2V -4 ns Note 1: The input offset voltage is the average of the input-referred trip points. The input hysteresis is the difference between the input-referred trip points. Note 2: Specifications apply to the TP1941N with shutdown. Note 3: Specifications apply to the TP1941NU with shutdown and latch enable. Note 4: Propagation Delay Skew is defined as: tPD-SKEW = tPD+ - tPD-.
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators www.3peakic.com REV1.0 Typical Performance Characteristics Input Offset Voltage V.S. Temperature Input Hysteresis Voltage V.S. Temperature Quiescent Current V.S. Temperature 203040506070-50 0 50 100Temperature (℃)Quiescent Current (μA)1.8V5VVCM=1.2V Propagation Delay V.S. Temperature 20406080100-50 0 50 100Temperature (℃)Propagation Delay (ns)tpd+ @VDD=1.8Vtpd+ @VDD=5Vtpd- @VDD=5Vtpd- @VDD=1.8VVCM=VSS Propagation Delay Skew V.S. Temperature -10-50510-50 0 50 100Temperature (℃)Propagation Delay Skew (ns)5V1.8VVCM=VSS Propagation Delay V.S. Overdrive Voltage 101001000100001 10 100 1VOverdrive (mV)Propagation Delay (ns)tpd+ @VDD=1.8Vtpd+ @VDD=5Vtpd- @VDD=5Vtpd- @VDD=1.8VVCM=VSS
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators REV1.1 www.3peakic.com.cn Typical Performance Characteristics Propagation Delay Skew V.S. Overdrive Voltage -500501001 10 100 1VOverdrive (mV)Propagation Delay Skew (ns)tpdskew@VDD=1.8VVCM=VSStpdskew @VDD=5V Propagation Delay V.S. Capacitor Loading 0501001502002503003504001 10 100 1nCapacitive Load (pF)Propagation Delay (ns)tpd+ @VDD=1.8Vtpd+ @VDD=5Vtpd- @VDD=5Vtpd- @VDD=1.8VVCM=VSS Propagation Delay Skew V.S. Capacitor Loading -300-200-10001001 10 100 1nCapacitive Load (pF)Propagation Delay Skew (ns)tpdskew @VDD=1.8Vtpdskew @VDD=5VVCM=VSS Rising/Falling Time V.S. Capacitor Loading 020040060080010001 10 100 1nCapacitive Load (pF)Rising/Falling Time (ns)trising @VDD=1.8Vtfalling @VDD=1.8VVCM=1.2Vtrising @VDD=5Vtfalling @VDD=5V Quiescent Current V.S. Common Mode Voltage 0204060801000 1 2 3 4 5Common Mode Voltage (V)Quiescent Current (μA)-40℃ 27℃85℃ VDD=5VVin-=0VVin+=Vcm Quiescent Current V.S. Common Mode Voltage -40℃VDD=5VVin-=0VVin+=Vcm
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators www.3peakic.com REV1.0 Typical Performance Characteristics Input Offset Voltage V.S. Common Mode Voltage -2-10120 1 2 3 4 5Common Mode Voltage (V)Input Offset Voltage (mV)VDD=5V27℃ -40℃ 85℃ Input Offset Voltage V.S. Common Mode Voltage -40℃ 85℃ Input Hysteresis Voltage V.S. Common Mode Voltage 02468100 1 2 3 4 5Common Mode Voltage (V)Input Hysteresis Voltage (mV)VDD=5V-40℃ 27℃85℃ Input Hysteresis Voltage V.S. Common Mode Voltage Input Offset Voltage Distribution 0%5%10%15%20%25%30%35%40%45%-6 -5 -4 -3 -2 -1 0 1 2 3 4 5 6Input Offset Voltage (mV)Percentage of Occurences1626 SamplesVCM=1.2V100mV overdrive5V1.8V Input Hysteresis Voltage Distribution 0%10%20%30%40%50%60%70%80%90%0 1 2 3 4 5 6 7 8 9 10 11 12Input Hysteresis Voltage (mV)Percentage of Occurences1626 SamplesVCM=1.2V100mV overdrive5V1.8V
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators REV1.1 www.3peakic.com.cn Typical Performance Characteristics Quiescent Current Distribution 0%10%20%30%40%50%60%70%20 25 30 35 40 45 50 55 60 65 70 75 80Quiscent Current (uA)Percentage of Occurences1626 SamplesVCM=1.2V100mV overdrive5V1.8V Input Bias and Offset Current V.S. Temperature 1101001000-50 0 50 100TEMPERATURE (℃)Input Bias & Offset Current (pA)IbiasIosVDD=5V Input Bias Current V.S. Common Mode Voltage 051015200 1 2 3 4Common Mode Voltage (V)Input Bias & Offset Current (pA)VDD=5VIbiasIos Output Short Circuit Current V.S. Temperature -40-2002040-40 -15 10 35 60 85TEMPERATURE (℃)Short Circuit Current (mA)Isource@5VIsource@1.8VIsink@1.8VIsink@5V Output Short Circuit Current V.S. Supply Voltage -40-20020401 2 3 4 5Supply Voltage (V)Short Circuit Current (mA)85℃27℃-40℃ IsourceIsink Output Voltage Headroom V.S. Output Current 0123450 2 4 6 8 10Output Current (mA)Output Voltage (V)VDD=5VVOHVOL85℃27℃-40℃
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators www.3peakic.com REV1.0 Typical Performance Characteristics Output Voltage Headroom V.S. Output Current Input Offset Voltage V.S. Supply Voltage -2-10121 2 3 4 5Supply Voltage (V)Input Offset Voltage (mV)85℃ -40℃ 27℃ Input Hysteresis Voltage V.S. Supply Voltage 02468101 2 3 4 5Supply Voltage (V)Input Hysteresis Voltage (mV)85℃27℃ -40℃ Quiescent Current V.S. Supply Voltage 2030405060701 2 3 4 5Supply Voltage (V)Quiescent Current (μA)85℃27℃-40℃ Low to High Propagation Delay V.S. Supply Voltage 204060801001 2 3 4 5Supply Voltage (V)Propagation Delay tpd+ (ns)-40℃ 85℃ 27℃ VCM=VSS High to low Propagation Delay V.S. Supply Voltage 204060801001 2 3 4 5Supply Voltage (V)Propagation Delay tpd- (ns)-40℃27℃ 85℃VCM=VSS
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators REV1.1 www.3peakic.com.cn Typical Performance Characteristics Propagation Skew Delay V.S. Supply Voltage -20-10010201 2 3 4 5Supply Voltage (V)Propagation Delay Skew (ns)85℃ -40℃ 27℃ VCM=VSS Pin Functions –IN: Inverting Input of the Comparator. Voltage range of this pin can go from V– – 0.3V to V+ + 0.3V. +IN: Non-Inverting Input of Comparator. This pin has the same voltage range as –IN. V+ (VDD): Positive Power Supply. Typically the voltage is from 1.8V to 5.5V. Split supplies are possible as long as the voltage between V+ and V– is between 1.8V and 5.5V. A bypass capacitor of 0.1μF as close to the part as possible should be used between power supply pins or between supply pins and ground. N/C: No Connection. V– (VSS): Negative Power Supply. It is normally tied to ground. It can also be tied to a voltage other than ground as long as the voltage between V+ and V– is from 1.8V to 5.5V. If it is not connected to ground, bypass it with a capacitor of 0.1μF as close to the part as possible. SHDN: Active Low Shutdown. Shutdown threshold is 1/2V+ above negative supply rail. LATCH: Active Low Latch enable. Latch enable threshold is 1/2V+ above negative supply rail. OUT: Comparator Output. The voltage range extends to within millivolts of each supply rail. Operation The TP194x family single-supply comparators feature internal hysteresis, high speed, and low power. Input signal range extends beyond the negative and positive power supplies. The output can even extend all the way to the negative supply. The input stage is active over different ranges of common mode input voltage. Rail-to-rail input voltage range and low-voltage single-supply operation make these devices ideal for portable equipment.
supply voltage (VDD), as shown in Figure 5. Figure 5. Inverting Configuration with Hysteresis high. The three network resistors can be represented as R1 ||R3 in series with R2. taken to minimize PCB Surface Leakage. See below section on “PCB Surface Leakage” for more details. to use multi-layer PCB layout and route the comparator’s -IN and +IN signal under the PCB surface.
Inverting configuration application.
- For Non-Inverting Configuration:
a) Connect the non-inverting pin (VIN+) to the input with a wire that does not touch the PCB surface.
- For Inverting Configuration:
the comparator (e.g., VDD/2 or ground). b) Connect the inverting pin (VIN–) to the input with a wire that does not touch the PCB surface. Figure 6. Example Guard Ring Layout for Inverting Comparator The TP194x family implements a rail-to-rail topology that is capable of swinging to within 10mV of either rail. Since the inputs can go 300mV beyond either rail, the comparator can easily perform ‘true ground’ sensing. either supply, otherwise current will flow through these diodes. not be biased more than 300mV beyond either supply rail. is forbidden to be left floating. met when using the latch function (Figure 7).
Figure 7. TP1941NU Timing Diagram with Latch Operator large, slow currents. This bulk capacitor can be shared with other analog parts. place external components as close to the comparator’ pins as possible.
- Use a printed circuit board (PCB) with a good, unbroken low-inductance ground plane.
- Place a decoupling capacitor (0.1μF ceramic, surface-mount capacitor) as close as possible to supply.
- On the inputs and the output, keep lead lengths as short as possible to avoid unwanted parasitic feedback
around the comparator. Keep inputs away from the output.
- Solder the device directly to the PCB rather than using a socket.
- For slow-moving input signals, take care to prevent parasitic feedback. A small capacitor (1000 pF or less)
between the output and inputs.
- The ground pin ground trace should run under the device up to the bypass capacitor, thus shielding the inputs
this voltage level cross the voltage applied by the voltage divider to the inverting input, the output transitions. Optional Ro provides additional hysteresis for noise immunity. Figure 8. IR Receiver guarantees the high frequency oscillation.
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators REV1.1 www.3peakic.com.cn Package Outline Dimensions SOT23-5 / SOT23-6 Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A1 0.000 0.100 0.000 0.004 A2 1.050 1.150 0.041 0.045 b 0.300 0.400 0.012 0.016 D 2.820 3.020 0.111 0.119 E 1.500 1.700 0.059 0.067 E1 2.650 2.950 0.104 0.116 e 0.950TYP 0.037TYP e1 1.800 2.000 0.071 0.079 L1 0.300 0.460 0.012 0.024 θ 0° 8° 0° 8°
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators www.3peakic.com REV1.0 Package Outline Dimensions SC-70-5 / SC-70-6 (SOT353 / SOT363) Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A1 0.000 0.100 0.000 0.004 A2 0.900 1.000 0.035 0.039 b 0.150 0.350 0.006 0.014 C 0.080 0.150 0.003 0.006 D 2.000 2.200 0.079 0.087 E 1.150 1.350 0.045 0.053 E1 2.150 2.450 0.085 0.096 e 0.650TYP 0.026TYP e1 1.200 1.400 0.047 0.055 L1 0.260 0.460 0.010 0.018 θ 0° 8° 0° 8°
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators REV1.1 www.3peakic.com.cn D b E e θ C Package Outline Dimensions SO-8 (SOIC-8) Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A1 0.100 0.250 0.004 0.010 A2 1.350 1.550 0.053 0.061 b 0.330 0.510 0.013 0.020 C 0.190 0.250 0.007 0.010 D 4.780 5.000 0.188 0.197 E 3.800 4.000 0.150 0.157 E1 5.800 6.300 0.228 0.248 e 1.270TYP 0.050TYP L1 0.400 1.270 0.016 0.050 θ 0° 8° 0° 8°
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators www.3peakic.com REV1.0 Package Outline Dimensions MSOP-8 Symbol Dimensions In Millimeters Dimensions In Inches Min Max Min Max A 0.800 1.200 0.031 0.047 A1 0.000 0.200 0.000 0.008 A2 0.760 0.970 0.030 0.038 b 0.30 TYP 0.012 TYP C 0.15 TYP 0.006 TYP D 2.900 3.100 0.114 0.122 e 0.65 TYP 0.026 E 2.900 3.100 0.114 0.122 E1 4.700 5.100 0.185 0.201 L1 0.410 0.650 0.016 0.026 θ 0° 6° 0° 6° E1eEA1A2ADL1 L2LRR1 θ b
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators REV1.1 www.3peakic.com.cn Package Outline Dimensions SO-14 (SOIC-14) Symbol Dimensions In Millimeters MIN TYP MAX A 1.35 1.60 1.75 A1 0.10 0.15 0.25 A2 1.25 1.45 1.65 b 0.36 0.49 D 8.53 8.63 8.73 E 5.80 6.00 6.20 E1 3.80 3.90 4.00 e 1.27 BSC L 0.45 0.60 0.80 L1 1.04 REF L2 0.25 BSC θ 0° 8°
TP1941/TP1941N/TP1942/TP1944 68ns, 1.8V, Ultra-low Power, RRI, Push-Pull Output Comparators www.3peakic.com REV1.0 Package Outline Dimensions TSSOP-14 Symbol Dimensions In Millimeters MIN TYP MAX A - - 1.20 A1 0.05 - 0.15 A2 0.90 1.00 1.05 b 0.20 - 0.28 c 0.10 - 0.19 D 4.86 4.96 5.06 E 6.20 6.40 6.60 E1 4.30 4.40 4.50 e 0.65 BSC L 0.45 0.60 0.75 L1 1.00 REF L2 0.25 BSC R 0.09 - - θ 0° - 8° E e A2A D L1 L2L RR1 θ c