component
TM7135
Public Made by Adomby adom
TM(Shenzhen Titan Micro Elec) Analog To Digital Converters (ADCs), SOP-28. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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"manufacturer": "TM(Shenzhen Titan Micro Elec)",
"package": "SOP-28",
"pin_count": 28,
"category": "ADC/DAC/Data Conversion",
"subcategory": "Analog To Digital Converters (ADCs)",
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"source": "Component Ocean /api/assign-pns",
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"number": "1",
"name": "V-",
"type": "power_in",
"description": "Negative supply, referenced to digital ground; operating range -3 to -8 V (typ -5 V)."
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{
"number": "2",
"name": "REF",
"type": "input",
"description": "Positive reference voltage input, referenced to analog common; VREF is half of full-scale input (1.0000 V for 2 V range)."
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{
"number": "3",
"name": "ANLG COM",
"type": "power_in",
"description": "Analog ground."
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{
"number": "4",
"name": "INT OUT",
"type": "output",
"description": "Integrator output; connect the integrating capacitor CINT (about 0.47 µF)."
},
{
"number": "5",
"name": "A/Z",
"type": "input",
"description": "Auto-zero input; connect the auto-zero capacitor CAZ (typ 1 µF)."
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{
"number": "6",
"name": "BUF OUT",
"type": "output",
"description": "Input buffer output; connect the integrating resistor RINT (100 kΩ for 2 V range)."
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{
"number": "7",
"name": "CREF-",
"type": "input",
"description": "Reference capacitor negative connection (CREF typ 1 µF)."
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{
"number": "8",
"name": "CREF+",
"type": "input",
"description": "Reference capacitor positive connection (CREF typ 1 µF)."
},
{
"number": "9",
"name": "IN-",
"type": "input",
"description": "Negative differential analog input of the voltage to be measured."
},
{
"number": "10",
"name": "IN+",
"type": "input",
"description": "Positive differential analog input of the voltage to be measured."
},
{
"number": "11",
"name": "V+",
"type": "power_in",
"description": "Positive supply, referenced to digital ground; operating range +4 to +6 V (typ +5 V), absolute max +6.0 V."
},
{
"number": "12",
"name": "D5(MSD)",
"type": "output",
"description": "Digit select output for the ten-thousands digit (most significant digit)."
},
{
"number": "13",
"name": "B1(LSB)",
"type": "output",
"description": "BCD data output bit 1 (least significant bit), multiplexed, TTL compatible."
},
{
"number": "14",
"name": "B2",
"type": "output",
"description": "BCD data output bit 2, multiplexed, TTL compatible."
},
{
"number": "15",
"name": "B4",
"type": "output",
"description": "BCD data output bit 4, multiplexed, TTL compatible."
},
{
"number": "16",
"name": "B8(MSB)",
"type": "output",
"description": "BCD data output bit 8 (most significant bit), multiplexed, TTL compatible."
},
{
"number": "17",
"name": "D4",
"type": "output",
"description": "Digit select output for the thousands digit."
},
{
"number": "18",
"name": "D3",
"type": "output",
"description": "Digit select output for the hundreds digit."
},
{
"number": "19",
"name": "D2",
"type": "output",
"description": "Digit select output for the tens digit."
},
{
"number": "20",
"name": "D1(LSD)",
"type": "output",
"description": "Digit select output for the units digit (least significant digit)."
},
{
"number": "21",
"name": "BUSY",
"type": "output",
"description": "Status output that is high during integration (from positive integration start to end of de-integration) and low during reverse integration as described."
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{
"number": "22",
"name": "CLK IN",
"type": "input",
"description": "Clock input; clock frequency DC to 200 kHz, high-level input min 2.8 V."
},
{
"number": "23",
"name": "POL",
"type": "output",
"description": "Polarity output, high for positive input and low for negative input."
},
{
"number": "24",
"name": "DGTL GND",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "25",
"name": "R/H",
"type": "input",
"description": "Run/Hold control with internal pull-up: high or floating runs continuously (one conversion per 40002 clock cycles), low holds last result, and a positive pulse over 300 ns restarts conversion."
},
{
"number": "26",
"name": "STROBE",
"type": "output",
"description": "Data output strobe with pulse width of half a clock period, giving five negative pulses after each conversion to latch BCD digits from MSD to LSD."
},
{
"number": "27",
"name": "OR",
"type": "output",
"description": "Over-range flag output, high when the input reading exceeds the converter count range."
},
{
"number": "28",
"name": "UR",
"type": "output",
"description": "Under-range flag output, high when the reading is 9% or less."
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"name": "Power dissipation (plastic package)",
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"unit": "mW",
"min": null,
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"conditions": "PLASTIC package",
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{
"name": "Zero input reading",
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{
"name": "Ratiometric reading",
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"unit": "counts",
"min": 0.9998,
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{
"name": "Linearity error",
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"kind": "electrical",
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{
"name": "Input leakage current",
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"conditions": "VIN=0V, Ta=25℃",
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{
"name": "Zero reading drift",
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"kind": "temperature_coefficient",
"unit": "μA/℃",
"min": null,
"typ": 0.5,
"max": 2,
"conditions": "VIN=0V, 0℃≤Ta≤70℃",
"source_page": 4,
"source": "datasheet"
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{
"name": "Scale factor temperature coefficient",
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"unit": "ppm/℃",
"min": null,
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"max": 5,
"conditions": "VIN=2V, 0℃≤Ta≤70℃",
"source_page": 4,
"source": "datasheet"
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{
"name": "Noise (p-p, not exceeded 95% of time)",
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"min": null,
"typ": 15,
"max": null,
"conditions": "VIN=0.0V, full scale 2V",
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"min": 2.8,
"typ": null,
"max": null,
"conditions": "CLK IN, R/H",
"source_page": 4,
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"conditions": "VIN=5V (CLK IN, R/H)",
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"conditions": "VIN=0V (CLK IN, R/H)",
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{
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"max": 0.4,
"conditions": "IOL=1.6mA",
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"conditions": "IOH=-1mA (B1-B8, D1-D5)",
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"min": 4.9,
"typ": 4.99,
"max": null,
"conditions": "IOH=-10μA (other outputs)",
"source_page": 4,
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{
"name": "+5V supply voltage range",
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{
"name": "-5V supply current",
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"conditions": "fc=0, Ta=25℃",
"source_page": 4,
"source": "datasheet"
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{
"name": "-5V supply current",
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"name": "Clock frequency",
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"min": null,
"typ": 120,
"max": 200,
"conditions": "DC to 200 kHz range",
"source_page": 4,
"source": "datasheet"
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"min": null,
"typ": 40,
"max": null,
"conditions": "",
"source_page": 4,
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