component
AD7794CRUZ
Public Made by Adomby adom
Analog Devices Analog To Digital Converters (ADCs), TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
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"slug": "ad7794cruz",
"title": "AD7794CRUZ",
"brief": "Analog Devices Analog To Digital Converters (ADCs), TSSOP-24. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
"license": "CC-BY-SA-4.0",
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"ad7794cruz",
"factory-2.0.0",
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],
"component": {
"mpn": "AD7794CRUZ",
"manufacturer": "Analog Devices",
"package": "TSSOP-24",
"pin_count": 24,
"category": "ADC/DAC/Data Conversion",
"subcategory": "Analog To Digital Converters (ADCs)",
"datasheet": "https://www.analog.com/media/en/technical-documentation/data-sheets/AD7794_7795.pdf",
"parts": {
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"footprint": "ad7794cruz.kicad_mod",
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"model_3d_step": "ad7794cruz-etched.step",
"model_3d_step_plain": "ad7794cruz.step",
"lbr": "ad7794cruz.lbr"
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"distributor_links": {
"lcsc": "C578523",
"digikey": "505-AD7794CRUZ-ND",
"mouser": "584-AD7794CRUZ"
},
"distributor_check": {
"checked_at": "2026-10-31T03:25:14Z",
"source": "Component Ocean /api/assign-pns",
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"pn": "505-AD7794CRUZ-ND",
"status": "found"
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},
"pins": [
{
"number": "1",
"name": "SCLK",
"type": "input",
"description": "Serial clock input for data transfers to and from the ADC, with a Schmitt-triggered input suitable for opto-isolated applications."
},
{
"number": "2",
"name": "CLK",
"type": "bidirectional",
"description": "Clock in/clock out pin that makes the internal clock available or, when the internal clock is disabled, accepts an external clock to drive the ADC."
},
{
"number": "3",
"name": "CS",
"type": "input",
"description": "Active-low chip select input used to select the ADC, which can be hardwired low for 3-wire operation."
},
{
"number": "4",
"name": "NC",
"type": "unconnected",
"description": "No connect."
},
{
"number": "5",
"name": "AIN6(+)/P1",
"type": "passive",
"description": "Positive terminal of the differential analog input pair AIN6(+)/AIN6(−), which can also function as a general-purpose output bit referenced between AVDD and GND."
},
{
"number": "6",
"name": "AIN6(−)/P2",
"type": "passive",
"description": "Negative terminal of the differential analog input pair AIN6(+)/AIN6(−), which can also function as a general-purpose output bit referenced between AVDD and GND."
},
{
"number": "7",
"name": "AIN1(+)",
"type": "passive",
"description": "Positive terminal of the differential analog input pair AIN1(+)/AIN1(−)."
},
{
"number": "8",
"name": "AIN1(−)",
"type": "passive",
"description": "Negative terminal of the differential analog input pair AIN1(+)/AIN1(−)."
},
{
"number": "9",
"name": "AIN2(+)",
"type": "passive",
"description": "Positive terminal of the differential analog input pair AIN2(+)/AIN2(−)."
},
{
"number": "10",
"name": "AIN2(−)",
"type": "passive",
"description": "Negative terminal of the differential analog input pair AIN2(+)/AIN2(−)."
},
{
"number": "11",
"name": "AIN3(+)",
"type": "passive",
"description": "Positive terminal of the differential analog input pair AIN3(+)/AIN3(−)."
},
{
"number": "12",
"name": "AIN3(−)",
"type": "passive",
"description": "Negative terminal of the differential analog input pair AIN3(+)/AIN3(−)."
},
{
"number": "13",
"name": "REFIN1(+)",
"type": "passive",
"description": "Positive reference input that can lie between AVDD and GND + 0.1 V, with a nominal REFIN1(+) − REFIN1(−) of 2.5 V and operation from 0.1 V to AVDD."
},
{
"number": "14",
"name": "REFIN1(−)",
"type": "passive",
"description": "Negative reference input that can lie between GND and AVDD − 0.1 V."
},
{
"number": "15",
"name": "AIN5(+)/IOUT2",
"type": "passive",
"description": "Positive terminal of the differential analog input pair AIN5(+)/AIN5(−), which can alternatively be the programmable excitation current output (10 μA, 210 μA, or 1 mA)."
},
{
"number": "16",
"name": "AIN5(−)/IOUT1",
"type": "passive",
"description": "Negative terminal of the differential analog input pair AIN5(+)/AIN5(−), which can alternatively be the programmable excitation current output (10 μA, 210 μA, or 1 mA)."
},
{
"number": "17",
"name": "AIN4(+)/REFIN2(+)",
"type": "passive",
"description": "Positive terminal of the differential analog input pair AIN4(+)/AIN4(−) and positive reference input for REFIN2, which can lie between AVDD and GND + 0.1 V."
},
{
"number": "18",
"name": "AIN4(−)/REFIN2(−)",
"type": "passive",
"description": "Negative terminal of the differential analog input pair AIN4(+)/AIN4(−) and negative reference input for REFIN2, which can lie between GND and AVDD − 0.1 V."
},
{
"number": "19",
"name": "PSW",
"type": "passive",
"description": "Low-side power switch to GND."
},
{
"number": "20",
"name": "GND",
"type": "power_in",
"description": "Ground reference point for the device."
},
{
"number": "21",
"name": "AVDD",
"type": "power_in",
"description": "Analog supply voltage, 2.7 V to 5.25 V."
},
{
"number": "22",
"name": "DVDD",
"type": "power_in",
"description": "Serial interface supply voltage, 2.7 V to 5.25 V, independent of AVDD."
},
{
"number": "23",
"name": "DOUT/RDY",
"type": "output",
"description": "Serial data output that also goes low to indicate conversion completion as a data ready output, with the data word placed on the SCLK falling edge when CS is low."
},
{
"number": "24",
"name": "DIN",
"type": "input",
"description": "Serial data input to the ADC input shift register, which is transferred to the control registers as selected by the communications register bits."
}
],
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"primary_model": "claude-haiku-5-5",
"primary_mode": "text",
"consensus_model": "claude-sonnet-5-5",
"consensus": "agreed",
"guards": "pin_guards 0.1: passed",
"guard_notes": [
"extractor flagged: The datasheet confirms AD7794CRUZ is sold in the 24-lead TSSOP (RU-24) package, and the pin table (F; Pin types for analog input, reference, excitation-current and power-switch pins are not stated in th; Pins 5 and 6 are also general-purpose digital output bits (P1, P2) and pin 2 is a clock input/output"
],
"pages_sent": 8,
"cost_usd": 0.0693,
"at": "2026-10-31T03:25:00"
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"pages": 36,
"sha256": "01534278628e602c",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
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"described": 24,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"source_page": 36,
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"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
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},
"metadata": {
"specs": {
"Manufacturer": "Analog Devices",
"Package": "TSSOP-24",
"Category": "ADC/DAC/Data Conversion",
"Pins": "24"
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"characteristics": {
"version": 1,
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"rows": [
{
"name": "AVDD supply voltage (AVDD to GND)",
"symbol": "AVDD",
"kind": "recommended_operating",
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"min": 2.7,
"typ": null,
"max": 5.25,
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"source": "datasheet"
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{
"name": "DVDD supply voltage (DVDD to GND)",
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"min": 2.7,
"typ": null,
"max": 5.25,
"conditions": "",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Power supply current IDD, unbuffered mode",
"symbol": "IDD",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
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"conditions": "Unbuffered mode, external reference",
"source_page": 7,
"source": "datasheet"
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{
"name": "Power supply current IDD, buffered mode",
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"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 185,
"conditions": "Buffered mode, gain = 1 or 2, external reference",
"source_page": 7,
"source": "datasheet"
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{
"name": "Power supply current IDD, gain 4 to 128, external reference",
"symbol": "IDD",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 400,
"conditions": "Gain = 4 to 128, external reference",
"source_page": 7,
"source": "datasheet"
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{
"name": "Power supply current IDD, gain 4 to 128, internal reference",
"symbol": "IDD",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 500,
"conditions": "Gain = 4 to 128, internal reference",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Power supply current IDD, power-down mode (AD7794C)",
"symbol": "IDD",
"kind": "electrical",
"unit": "μA",
"min": null,
"typ": null,
"max": 2,
"conditions": "Power-down mode, AD7794C",
"source_page": 7,
"source": "datasheet"
},
{
"name": "Integral nonlinearity",
"symbol": "",
"kind": "electrical",
"unit": "ppm of FSR",
"min": -15,
"typ": null,
"max": 15,
"conditions": "",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Power supply rejection",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": 100,
"typ": null,
"max": null,
"conditions": "AIN = 1 V/gain, gain ≥ 4, external reference",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Absolute AIN voltage limit, unbuffered mode (min rel. GND, max rel. AVDD)",
"symbol": "",
"kind": "electrical",
"unit": "mV",
"min": -30,
"typ": null,
"max": 30,
"conditions": "Gain = 1 or 2; max = AVDD + 30 mV",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Absolute AIN voltage limit, buffered mode (min rel. GND, max rel. AVDD)",
"symbol": "",
"kind": "electrical",
"unit": "mV",
"min": 100,
"typ": null,
"max": -100,
"conditions": "Gain = 1 or 2; max = AVDD − 100 mV",
"source_page": 3,
"source": "datasheet"
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{
"name": "Absolute AIN voltage min, in-amp active (rel. GND)",
"symbol": "",
"kind": "electrical",
"unit": "mV",
"min": 300,
"typ": null,
"max": null,
"conditions": "Gain = 4 to 128; min = GND + 300 mV; max = AVDD − 1.1 V (see review)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Average input current, gain 1 or 2, update rate < 100 Hz (AD7794C)",
"symbol": "",
"kind": "electrical",
"unit": "nA",
"min": -3,
"typ": null,
"max": 3,
"conditions": "Buffered mode or in-amp active; gain = 1 or 2, update rate < 100 Hz",
"source_page": 3,
"source": "datasheet"
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{
"name": "Average input current, gain 4 to 128, update rate < 100 Hz (AD7794C)",
"symbol": "",
"kind": "electrical",
"unit": "nA",
"min": -2,
"typ": null,
"max": 2,
"conditions": "Buffered mode or in-amp active; gain = 4 to 128, update rate < 100 Hz",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Average input current, AIN6(+)/AIN6(−) (AD7794C)",
"symbol": "",
"kind": "electrical",
"unit": "nA",
"min": -3,
"typ": null,
"max": 3,
"conditions": "AIN6(+)/AIN6(−)",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Common-mode voltage, VCM (chop enabled)",
"symbol": "VCM",
"kind": "electrical",
"unit": "V",
"min": 0.5,
"typ": null,
"max": null,
"conditions": "VCM = (AIN(+) + AIN(−))/2, gain = 4 to 128",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Normal mode rejection, internal clock, 50 Hz and 60 Hz",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": 65,
"typ": null,
"max": null,
"conditions": "50 ± 1 Hz, 60 ± 1 Hz, FS[3:0] = 1010",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Normal mode rejection, internal clock, 50 Hz",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": 80,
"typ": null,
"max": null,
"conditions": "50 ± 1 Hz, FS[3:0] = 1001",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Normal mode rejection, internal clock, 60 Hz",
"symbol": "",
"kind": "electrical",
"unit": "dB",
"min": 90,
"typ": null,
"max": null,
"conditions": "60 ± 1 Hz, FS[3:0] = 1000",
"source_page": 3,
"source": "datasheet"
},
{
"name": "Internal reference initial accuracy (1.17 V)",
"symbol": "",
"kind": "tolerance",
"unit": "%",
"min": -0.01,
"typ": null,
"max": 0.01,
"conditions": "AVDD = 4 V, TA = 25°C",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Internal reference drift",
"symbol": "",
"kind": "temperature_coefficient",
"unit": "ppm/°C",
"min": null,
"typ": 4,
"max": 15,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "External REFIN voltage range, REFIN(+) − REFIN(−)",
"symbol": "REFIN",
"kind": "electrical",
"unit": "V",
"min": 0.1,
"typ": null,
"max": null,
"conditions": "Max is AVDD (see review)",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Absolute REFIN voltage limits (min rel. GND, max rel. AVDD)",
"symbol": "REFIN",
"kind": "electrical",
"unit": "mV",
"min": -30,
"typ": null,
"max": 30,
"conditions": "Max = AVDD + 30 mV",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Reference detect levels",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": 0.3,
"typ": null,
"max": 0.65,
"conditions": "NOXREF bit active if VREF < 0.3 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "IEXC output compliance, 10 μA or 210 μA (rel. AVDD)",
"symbol": "IEXC1, IEXC2",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": -0.65,
"conditions": "Current sources programmed to 10 μA or 210 μA; max = AVDD − 0.65 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "IEXC output compliance, 1 mA (rel. AVDD)",
"symbol": "IEXC1, IEXC2",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": -1.1,
"conditions": "Current sources programmed to 1 mA; max = AVDD − 1.1 V",
"source_page": 5,
"source": "datasheet"
},
{
"name": "IEXC output compliance, lower limit (rel. GND)",
"symbol": "IEXC1, IEXC2",
"kind": "electrical",
"unit": "mV",
"min": -30,
"typ": null,
"max": null,
"conditions": "",
"source_page": 5,
"source": "datasheet"
},
{
"name": "Low-side power switch on-resistance, AVDD = 5 V",
"symbol": "RON",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": null,
"max": 7,
"conditions": "AVDD = 5 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Low-side power switch on-resistance, AVDD = 3 V",
"symbol": "RON",
"kind": "electrical",
"unit": "Ω",
"min": null,
"typ": null,
"max": 9,
"conditions": "AVDD = 3 V",
"source_page": 6,
"source": "datasheet"
},
{
"name": "Low-side power switch allowable current",
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