component
DAC8734SPFBR
Public Made by Adomby adom
Texas Instruments Digital To Analog Converters (DACs), TQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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{
"slug": "dac8734spfbr",
"version": "0.1.0",
"type": "component",
"description": "Texas Instruments Digital To Analog Converters (DACs), TQFP-48(7x7). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"tags": [
"component",
"adc-dac-data conversion",
"dac8734spfbr",
"factory-2.0.0",
"extractor-text"
],
"dependencies": {},
"hero": {
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"path": "docs/hero.png"
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"component": {
"mpn": "DAC8734SPFBR",
"manufacturer": "Texas Instruments",
"package": "TQFP-48(7x7)",
"pin_count": 48,
"category": "ADC/DAC/Data Conversion",
"subcategory": "Digital To Analog Converters (DACs)",
"datasheet": "https://www.ti.com/lit/ds/symlink/dac8734spfbr.pdf",
"parts": {
"symbol": "dac8734spfbr.kicad_sym",
"footprint": "dac8734spfbr.kicad_mod",
"model_3d": "dac8734spfbr-hero.glb",
"model_3d_plain": "dac8734spfbr-etched.glb",
"model_3d_step": "dac8734spfbr-etched.step",
"model_3d_step_plain": "dac8734spfbr.step",
"lbr": "dac8734spfbr.lbr"
},
"distributor_links": {
"lcsc": "C1849369",
"digikey": "296-DAC8734SPFBRTR-ND",
"mouser": "595-DAC8734SPFBR"
},
"distributor_check": {
"checked_at": "2026-10-31T18:30:46Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "296-DAC8734SPFBRTR-ND",
"status": "found",
"lifecycle": "Active"
},
"mouser": {
"pn": "595-DAC8734SPFBR",
"status": "found"
}
},
"pins": [
{
"number": "1",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "2",
"name": "CS",
"type": "input",
"description": "SPI chip select input (active low); data are not clocked into the SPI shift register unless CS is low, and SDO is high-impedance when CS is high."
},
{
"number": "3",
"name": "SCLK",
"type": "input",
"description": "SPI bus clock input, up to 50MHz."
},
{
"number": "4",
"name": "SDI",
"type": "input",
"description": "SPI bus serial data input."
},
{
"number": "5",
"name": "SDO",
"type": "output",
"description": "SPI serial data output, high-impedance when CS is high; used for daisy-chaining."
},
{
"number": "6",
"name": "LDAC",
"type": "input",
"description": "Load DAC latch control input (active low); when low the DAC latch is transparent and Input Data Register contents are transferred to it."
},
{
"number": "7",
"name": "RST",
"type": "input",
"description": "Reset input (active low); resets input registers and DACs to values defined by the UNI/BIP pins and sets Gain and Zero Registers to defaults."
},
{
"number": "8",
"name": "GPIO-0",
"type": "bidirectional",
"description": "General-purpose digital input/output 0 with open-drain output; needs a 10kΩ pull-up resistor to IOVDD when used as an output."
},
{
"number": "9",
"name": "GPIO-1",
"type": "bidirectional",
"description": "General-purpose digital input/output 1 with open-drain output; needs a 10kΩ pull-up resistor to IOVDD when used as an output."
},
{
"number": "10",
"name": "UNI/BIP-A",
"type": "input",
"description": "Output mode select for group A (DAC-0, DAC-1): tied to IOVDD for unipolar (straight binary), tied to DGND for bipolar (twos complement)."
},
{
"number": "11",
"name": "DGND",
"type": "power_in",
"description": "Digital ground."
},
{
"number": "12",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "13",
"name": "IOVDD",
"type": "power_in",
"description": "Interface power supply (1.8V to DVDD)."
},
{
"number": "14",
"name": "DVDD",
"type": "power_in",
"description": "Digital power supply (5V nominal in the specifications)."
},
{
"number": "15",
"name": "VOUT-0",
"type": "output",
"description": "DAC-0 output."
},
{
"number": "16",
"name": "RFB2-0",
"type": "passive",
"description": "DAC-0 RFB2 feedback; connect to VOUT-0 for gain 2, leave open for gain 4."
},
{
"number": "17",
"name": "RFB1-0",
"type": "passive",
"description": "DAC-0 RFB1 feedback; connect to VOUT-0 for gain 2 or 4."
},
{
"number": "18",
"name": "SGND-0",
"type": "power_in",
"description": "DAC-0 signal ground, connected to REFGND-A."
},
{
"number": "19",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "20",
"name": "SGND-1",
"type": "power_in",
"description": "DAC-1 signal ground, connected to REFGND-A."
},
{
"number": "21",
"name": "RFB1-1",
"type": "passive",
"description": "DAC-1 RFB1 feedback; connect to VOUT-1 for gain 2 or 4."
},
{
"number": "22",
"name": "RFB2-1",
"type": "passive",
"description": "DAC-1 RFB2 feedback; connect to VOUT-1 for gain 2, leave open for gain 4."
},
{
"number": "23",
"name": "VOUT-1",
"type": "output",
"description": "DAC-1 output."
},
{
"number": "24",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "25",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "26",
"name": "AVDD",
"type": "power_in",
"description": "Positive analog power supply (not above 24V, not below 4.75V)."
},
{
"number": "27",
"name": "AGND",
"type": "power_in",
"description": "Analog ground."
},
{
"number": "28",
"name": "AVSS",
"type": "power_in",
"description": "Negative analog power supply (not above -4.75V, not below -18V)."
},
{
"number": "29",
"name": "REFGND-A",
"type": "power_in",
"description": "Reference REF-A ground; connect to AGND."
},
{
"number": "30",
"name": "REF-A",
"type": "input",
"description": "Group A (DAC-0, DAC-1) reference input."
},
{
"number": "31",
"name": "REF-B",
"type": "input",
"description": "Group B (DAC-2, DAC-3) reference input."
},
{
"number": "32",
"name": "REFGND-B",
"type": "power_in",
"description": "Reference REF-B ground; connect to AGND."
},
{
"number": "33",
"name": "AVSS",
"type": "power_in",
"description": "Negative analog power supply (not above -4.75V, not below -18V)."
},
{
"number": "34",
"name": "VMON",
"type": "output",
"description": "Analog monitor output, Hi-Z or connected to one of the four DAC outputs or AIN depending on the Monitor Register."
},
{
"number": "35",
"name": "AVDD",
"type": "power_in",
"description": "Positive analog power supply (not above 24V, not below 4.75V)."
},
{
"number": "36",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "37",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "38",
"name": "VOUT-3",
"type": "output",
"description": "DAC-3 output."
},
{
"number": "39",
"name": "RFB2-3",
"type": "passive",
"description": "DAC-3 RFB2 feedback; connect to VOUT-3 for gain 2, leave open for gain 4."
},
{
"number": "40",
"name": "RFB1-3",
"type": "passive",
"description": "DAC-3 RFB1 feedback; connect to VOUT-3 for gain 2 or 4."
},
{
"number": "41",
"name": "SGND-3",
"type": "power_in",
"description": "DAC-3 signal ground, connected to REFGND-B."
},
{
"number": "42",
"name": "NC",
"type": "unconnected",
"description": "Not connected."
},
{
"number": "43",
"name": "SGND-2",
"type": "power_in",
"description": "DAC-2 signal ground, connected to REFGND-B."
},
{
"number": "44",
"name": "RFB1-2",
"type": "passive",
"description": "DAC-2 RFB1 feedback; connect to VOUT-2 for gain 2 or 4."
},
{
"number": "45",
"name": "RFB2-2",
"type": "passive",
"description": "DAC-2 RFB2 feedback; connect to VOUT-2 for gain 2, leave open for gain 4."
},
{
"number": "46",
"name": "VOUT-2",
"type": "output",
"description": "DAC-2 output."
},
{
"number": "47",
"name": "AIN",
"type": "input",
"description": "Auxiliary analog input, connected to the analog monitor mux."
},
{
"number": "48",
"name": "UNI/BIP-B",
"type": "input",
"description": "Output mode select for group B (DAC-2, DAC-3): tied to IOVDD for unipolar (straight binary), tied to DGND for bipolar (twos complement)."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
"factory": "2.0.0",
"extractor": "extract_pins 0.3",
"primary_model": "claude-sonnet-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 lists RFB pins as 'O' (output). I typed them as passive because they are feedback conn; The UNI/BIP-B description in the datasheet says 'When UNI/BIP-A is tied to IOVDD, group B...'. This ; The datasheet lists SGND-x as 'I' (input). I typed them as power_in because they are signal grounds."
],
"pages_sent": 14,
"cost_usd": 0.2259,
"at": "2026-10-31T18:30:27"
},
"datasheet": {
"url": "https://www.ti.com/lit/ds/symlink/dac8734spfbr.pdf",
"pages": 44,
"sha256": "03221e6c5bcf7ad4",
"source_tier": "mfr"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 48,
"described": 48,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
"symbol": "viewers/symbol.html",
"footprint": "viewers/footprint.html"
},
"models_3d": [
{
"file": "dac8734spfbr.step",
"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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9.0,
1.1
],
"zmin_mm": -0.0,
"centre_offset_mm": 0.0,
"footprint_binding": "identity",
"sha256": "14ca7676e4932e92f0eca0c6d56ce3018cd28a2531204a70ab7bbacb3eeb3cf5",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
},
{
"file": "dac8734spfbr-etched.step",
"role": "eda",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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9.0,
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"footprint_binding": "identity",
"sha256": "11f64a3e4fe11e69ea3dad3332152c3b627642e21ea24cc89f68169550acb07e",
"checked": "2026-10-31",
"checked_by": "factory/step_pose.py (Z-up, origin, seat, binding)"
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}
}