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CS5526-BSZ
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Cirrus Logic Analog To Digital Converters (ADCs), SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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"slug": "cs5526-bsz",
"title": "CS5526-BSZ",
"brief": "Cirrus Logic Analog To Digital Converters (ADCs), SSOP-20-208mil. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.",
"version": "0.1.0",
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"cs5526-bsz",
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"manufacturer": "Cirrus Logic",
"package": "SSOP-20-208mil",
"pin_count": 20,
"category": "Data Converters",
"subcategory": "Analog To Digital Converters (ADCs)",
"datasheet": "https://datasheet.lcsc.com/datasheet/pdf/b40300788b56bfc7dcd629772f270177.pdf",
"parts": {
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"lbr": "cs5526-bsz.lbr"
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"distributor_links": {
"lcsc": "C1542557",
"digikey": "598-1108-5-ND",
"mouser": "777-CS5526-BSZ"
},
"distributor_check": {
"checked_at": "2026-10-30T22:51:27Z",
"source": "Component Ocean /api/assign-pns",
"digikey": {
"pn": "598-1108-5-ND",
"status": "found",
"lifecycle": "Obsolete"
},
"mouser": {
"pn": "777-CS5526-BSZ",
"status": "found",
"lifecycle": "End of Life"
}
},
"pins": [
{
"number": "1",
"name": "AGND",
"type": "power_in",
"description": "Analog ground; the device should be placed over an analog ground plane with AGND connected to that plane."
},
{
"number": "2",
"name": "VA+",
"type": "power_in",
"description": "Positive analog power supply, nominally +5 V."
},
{
"number": "3",
"name": "AIN+",
"type": "input",
"description": "Positive differential analog input to the 20X instrumentation amplifier."
},
{
"number": "4",
"name": "AIN-",
"type": "input",
"description": "Negative differential analog input; the unipolar and bipolar offset definitions are referenced to the voltage on this pin."
},
{
"number": "5",
"name": "NBV",
"type": "power_in",
"description": "Negative bias voltage supply for the 20X instrumentation amplifier, tied to AGND for inputs centered at +2.5 V or to a negative supply (about -2.1 V typical) to handle signals below ground."
},
{
"number": "6",
"name": "A0",
"type": "output",
"description": "Logic output that mirrors configuration register bit D20, reading AGND for logic 0 and VA+ for logic 1."
},
{
"number": "7",
"name": "A1",
"type": "output",
"description": "Logic output that mirrors configuration register bit D21, reading AGND for logic 0 and VA+ for logic 1."
},
{
"number": "8",
"name": "CPD",
"type": "output",
"description": "Square-wave output that supplies energy to the external charge pump."
},
{
"number": "9",
"name": "XIN",
"type": "input",
"description": "Crystal input for the master clock, or an external CMOS-compatible clock input; the pin is very high impedance with a crystal, so the trace should be kept short."
},
{
"number": "10",
"name": "XOUT",
"type": "output",
"description": "Crystal output of the on-chip clock gate, used with a crystal to form the master clock."
},
{
"number": "11",
"name": "SCLK",
"type": "input",
"description": "Serial clock input with Schmitt-trigger behavior that clocks SDI/SDO data and is recognized only when CS is low."
},
{
"number": "12",
"name": "DGND",
"type": "power_in",
"description": "Digital ground connection."
},
{
"number": "13",
"name": "VD+",
"type": "power_in",
"description": "Positive digital supply, nominally +3.0 V or +5 V."
},
{
"number": "14",
"name": "SDO",
"type": "tri_state",
"description": "Serial data output that goes to high impedance when CS = 1."
},
{
"number": "15",
"name": "A2",
"type": "output",
"description": "Logic output that mirrors configuration register bit D22, reading AGND for logic 0 and VA+ for logic 1."
},
{
"number": "16",
"name": "A3",
"type": "output",
"description": "Logic output that mirrors configuration register bit D23, reading AGND for logic 0 and VA+ for logic 1."
},
{
"number": "17",
"name": "SDI",
"type": "input",
"description": "Serial data input whose data is clocked in at the rate set by SCLK."
},
{
"number": "18",
"name": "CS",
"type": "input",
"description": "Active-low chip select that enables the serial port; SCLK is recognized only while CS is low, and CS should change only when SCLK = 0."
},
{
"number": "19",
"name": "VREF-",
"type": "power_in",
"description": "Negative side of the fully differential voltage reference input for the on-chip modulator."
},
{
"number": "20",
"name": "VREF+",
"type": "power_in",
"description": "Positive side of the fully differential voltage reference input for the on-chip modulator."
}
],
"provenance": {
"extractor": "extract_pins 0.3",
"factory_chain": {
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"extractor": "extract_pins 0.3",
"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 page 24 pin diagram is scrambled in the text extraction. Pin numbers were reconstructed from the; The datasheet gives the 20-pin SSOP drawing in millimetres and inches but does not print '208 mil' e; The datasheet gives no explicit pin types. Types were assigned from function: GND/supply pins as pow",
"1/20 pins cited to the wrong page (name found elsewhere): ['10:XOUT@p24']",
"1/20 pin names appear NOWHERE in the datasheet text: ['9:XIN@p24']"
],
"pages_sent": 9,
"cost_usd": 0.0546,
"at": "2026-10-30T22:51:08"
},
"datasheet": {
"url": "https://datasheet.lcsc.com/datasheet/pdf/b40300788b56bfc7dcd629772f270177.pdf",
"pages": 30,
"sha256": "9a25cf391b45f080",
"source_tier": "lcsc"
},
"cad": "KiCad official (CC-BY-SA 4.0)",
"pins": {
"total": 20,
"described": 20,
"cites_pages": true,
"refuses_to_fabricate": true
}
},
"viewers": {
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"footprint": "viewers/footprint.html"
},
"models_3d": [
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"role": "plain",
"up": "Z",
"units": "mm",
"origin": "footprint origin = pad-pattern centre",
"seat": "z = 0",
"extents_mm": [
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7.2,
2.1
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"zmin_mm": 0,
"centre_offset_mm": 0,
"footprint_binding": "identity",
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"checked": "2026-10-30",
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{
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"seat": "z = 0",
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"footprint_binding": "identity",
"sha256": "fb2e34d154104772d98e0314cae6bcb550c17939fe87eddd3ffa2ed1041613bd",
"checked": "2026-10-30",
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"package_dims": {
"package_code": "20-pin SSOP",
"source_page": 28,
"D": {
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6.9,
7.5
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},
"E1": {
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5,
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"A": {
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"source": "datasheet package drawing, every number found on its page (extract_pins --task dims)",
"model_check": {
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"verdict": "PASS",
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"metadata": {
"specs": {
"Manufacturer": "Cirrus Logic",
"Package": "SSOP-20-208mil",
"Category": "Data Converters",
"Pins": "20"
},
"characteristics": {
"version": 1,
"source": "datasheet",
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"rows": [
{
"name": "Linearity Error",
"symbol": "",
"kind": "electrical",
"unit": "%FS",
"min": -0.0015,
"typ": 0.0007,
"max": 0.0015,
"conditions": "TA=25°C; VA+,VD+=5 V ±5%; VREF+=2.5 V, VREF-=AGND; NBV=-2.1 V; FCLK=32.768 kHz; OWR=15 Sps; Bipolar, ±100 mV",
"source_page": 2,
"source": "datasheet"
},
{
"name": "No Missing Codes",
"symbol": "",
"kind": "electrical",
"unit": "Bits",
"min": 20,
"typ": null,
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"conditions": "TA=25°C; VA+,VD+=5 V ±5%; VREF+=2.5 V, VREF-=AGND; NBV=-2.1 V; FCLK=32.768 kHz; OWR=15 Sps; Bipolar, ±100 mV",
"source_page": 2,
"source": "datasheet"
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{
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"conditions": "TA=25°C; VA+,VD+=5 V ±5%; VREF+=2.5 V, VREF-=AGND; NBV=-2.1 V; FCLK=32.768 kHz; OWR=15 Sps; Bipolar, ±100 mV; Note 3",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Unipolar Offset",
"symbol": "",
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"unit": "LSB",
"min": -64,
"typ": 32,
"max": 64,
"conditions": "TA=25°C; VA+,VD+=5 V ±5%; VREF+=2.5 V, VREF-=AGND; NBV=-2.1 V; FCLK=32.768 kHz; OWR=15 Sps; Bipolar, ±100 mV; Note 3",
"source_page": 2,
"source": "datasheet"
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{
"name": "Bipolar Gain Error",
"symbol": "",
"kind": "electrical",
"unit": "ppm",
"min": -31,
"typ": 8,
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"conditions": "TA=25°C; VA+,VD+=5 V ±5%; VREF+=2.5 V, VREF-=AGND; NBV=-2.1 V; FCLK=32.768 kHz; OWR=15 Sps; Bipolar, ±100 mV",
"source_page": 2,
"source": "datasheet"
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{
"name": "Unipolar Gain Error",
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"kind": "electrical",
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"min": -62,
"typ": 16,
"max": 62,
"conditions": "TA=25°C; VA+,VD+=5 V ±5%; VREF+=2.5 V, VREF-=AGND; NBV=-2.1 V; FCLK=32.768 kHz; OWR=15 Sps; Bipolar, ±100 mV",
"source_page": 2,
"source": "datasheet"
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{
"name": "Gain Drift",
"symbol": "",
"kind": "temperature_coefficient",
"unit": "ppm/°C",
"min": null,
"typ": 1,
"max": 3,
"conditions": "TA=25°C; VA+,VD+=5 V ±5%; VREF+=2.5 V, VREF-=AGND; NBV=-2.1 V; FCLK=32.768 kHz; OWR=15 Sps; Bipolar, ±100 mV; Note 4",
"source_page": 2,
"source": "datasheet"
},
{
"name": "Voltage Reference Input Range",
"symbol": "(VREF+) - (VREF-)",
"kind": "electrical",
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"min": 1,
"typ": 2.5,
"max": 3,
"conditions": "TA=25°C; VA+,VD+=5 V ±5%; VREF+=2.5 V, VREF-=AGND; NBV=-2.1 V; FCLK=32.768 kHz; OWR=15 Sps; Bipolar, ±100 mV",
"source_page": 2,
"source": "datasheet"
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{
"name": "Analog Input Common Mode + Signal (NBV = -1.8 to -2.5 V)",
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"typ": null,
"max": 0.95,
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"source_page": 3,
"source": "datasheet"
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{
"name": "Analog Input Common Mode + Signal (NBV = AGND)",
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"source_page": 3,
"source": "datasheet"
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{
"name": "Full-scale Calibration Range 25 mV",
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"source": "datasheet"
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{
"name": "Full-scale Calibration Range 55 mV",
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"conditions": "Bipolar/Unipolar Mode; Note 9",
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"source": "datasheet"
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{
"name": "Full-scale Calibration Range 100 mV",
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"kind": "electrical",
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"min": 70,
"typ": null,
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"conditions": "Bipolar/Unipolar Mode; Note 9",
"source_page": 3,
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{
"name": "Full-scale Calibration Range 1 V",
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"kind": "electrical",
"unit": "V",
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"conditions": "Bipolar/Unipolar Mode; Note 9",
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{
"name": "Full-scale Calibration Range 2.5 V",
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{
"name": "Full-scale Calibration Range 5 V",
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"kind": "electrical",
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"typ": null,
"max": null,
"conditions": "Bipolar/Unipolar Mode; Note 9",
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{
"name": "Offset Calibration Range 25 mV",
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"source": "datasheet"
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{
"name": "Offset Calibration Range 55 mV",
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"kind": "electrical",
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"source": "datasheet"
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{
"name": "Offset Calibration Range 100 mV",
"symbol": "",
"kind": "electrical",
"unit": "mV",
"min": -50,
"typ": null,
"max": 50,
"conditions": "Bipolar/Unipolar Mode; Note 10",
"source_page": 3,
"source": "datasheet"
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{
"name": "Offset Calibration Range 1 V",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": -0.5,
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"max": 0.5,
"conditions": "Bipolar/Unipolar Mode",
"source_page": 3,
"source": "datasheet"
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{
"name": "Offset Calibration Range 2.5 V",
"symbol": "",
"kind": "electrical",
"unit": "V",
"min": -1.25,
"typ": null,
"max": 1.25,
"conditions": "Bipolar/Unipolar Mode",
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"source": "datasheet"
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{
"name": "Offset Calibration Range 5 V",
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"typ": null,
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{
"name": "DC Power Supply Current IA+ (Normal Mode)",
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{
"name": "DC Power Supply Current ID+ (Normal Mode)",
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"kind": "electrical",
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"min": null,
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{
"name": "DC Power Supply Current INBV (Normal Mode)",
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{
"name": "Power Consumption Normal Mode",
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{
"name": "Power Consumption Low Power Mode",
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"min": null,
"typ": 4.9,
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"conditions": "Low power mode; Note 11",
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"source": "datasheet"
},
{
"name": "Low-level Input Voltage (All Pins Except XIN and SCLK)",
"symbol": "VIL",
"kind": "electrical",
"unit": "V",
"min": null,
"typ": null,
"max": 0.8,
"conditions": "TA = 25 °C; VA+, VD+ = 5 V ±5%; GND = 0; Notes 2, 12",
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"source": "datasheet"
},
{
"name": "Low-level Input Voltage (XIN)",
"symbol": "VIL",
"kind": "electrical",
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"typ": null,
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"conditions": "TA = 25 °C; VA+, VD+ = 5 V ±5%; GND = 0; Notes 2, 12",
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"source": "datasheet"
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{
"name": "Low-level Input Voltage (SCLK)",
"symbol": "VIL",
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"conditions": "TA = 25 °C; VA+, VD+ = 5 V ±5%; GND = 0; Notes 2, 12",
"source_page": 4,
"source": "datasheet"
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