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LTC2484IDD#TRPBF

Analog Devices · Analog To Digital Converters (ADC) · DFN-10-EP(3x3)

LTC2484IDD#TRPBF from Analog Devices, in a DFN-10-EP(3x3). Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 SDI input Serial data input, shifted in on the rising edge of SCK, used to select line-frequency rejection, input channel, temperature sensor and 2x speed mode.
2 VCC power_in Positive supply voltage, to be bypassed to GND (pin 8) with a 1µF tantalum capacitor in parallel with a 0.1µF ceramic capacitor as close to the part as possible.
3 VREF power_in Positive reference input whose voltage can be any value between 0.1V and VCC, with the negative reference being GND (pin 8).
4 IN+ input Positive differential analog input that may range from GND - 0.3V to VCC + 0.3V, with the bipolar input range (IN+ - IN-) extending from -0.5·VREF to 0.5·VREF.
5 IN- input Negative differential analog input that may range from GND - 0.3V to VCC + 0.3V, forming the differential input pair with IN+ (pin 4).
6 CS input Active-LOW chip select that enables the digital I/O and wakes the ADC, where a LOW-to-HIGH transition during data output aborts the transfer and starts a new conversion.
7 SDO tri_state Three-state digital output that carries serial data during the data output period, is high impedance when CS is HIGH, and shows conversion status during conversion and sleep periods.
8 GND power_in Ground shared by analog, digital and reference grounds, which should be connected directly to a ground plane through a minimum impedance.
9 SCK bidirectional Serial clock that is an output in internal serial clock mode and an input in external serial clock mode, with a weak internal pull-up active in internal mode; the mode is set by the SCK level at power-up or at the most recent falling edge of CS.
10 fO input Digital frequency control input that selects the internal 307.2kHz oscillator when connected to GND, or may be driven by an external clock to change the output rate or digital filter rejection null.
11 GND power_in Exposed pad is ground and must be soldered to the PCB GND plane, though it may remain floating for prototyping purposes.

Key specifications

Parameter Value
Manufacturer Analog Devices
Package DFN-10-EP(3x3)
Category Data Acquisition
Pins 11

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Resolution (No Missing Codes) 24 Bits 0.1 ≤ VREF ≤ VCC, -FS ≤ VIN ≤ +FS (Note 5) 2
Integral Nonlinearity 2 ppm of VREF 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V (Note 6) 2
Integral Nonlinearity 10 ppm of VREF 2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V (Note 6) 2
Offset Error 0.5 2.5 µV 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN- ≤ VCC (Note 14) 2
Positive Full-Scale Error 25 ppm of VREF 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN- = 0.25VREF 2
Negative Full-Scale Error 25 ppm of VREF 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN- = 0.25VREF 2
Total Unadjusted Error 15 ppm of VREF 5V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V; 5V ≤ VCC ≤ 5.5V, VREF = 5V, VIN(CM) = 2.5V; 2.7V ≤ VCC ≤ 5.5V, VREF = 2.5V, VIN(CM) = 1.25V 2
Internal PTAT Signal 390 450 mV TA = 27°C 2
Input Common Mode Rejection DC 140 dB 2.5V ≤ VREF ≤ VCC, GND ≤ IN- = IN+ ≤ VCC (Note 5) 3
Input Common Mode Rejection 50Hz ±2% 140 dB 2.5V ≤ VREF ≤ VCC, GND ≤ IN- = IN+ ≤ VCC (Note 5) 3
Input Common Mode Rejection 60Hz ±2% 140 dB 2.5V ≤ VREF ≤ VCC, GND ≤ IN- = IN+ ≤ VCC (Note 5) 3
Input Normal Mode Rejection 50Hz ±2% 110 120 dB 2.5V ≤ VREF ≤ VCC, GND ≤ IN- = IN+ ≤ VCC (Notes 5, 7) 3
Input Normal Mode Rejection 60Hz ±2% 110 120 dB 2.5V ≤ VREF ≤ VCC, GND ≤ IN- = IN+ ≤ VCC (Notes 5, 8) 3
Input Normal Mode Rejection 50Hz/60Hz ±2% 87 dB 2.5V ≤ VREF ≤ VCC, GND ≤ IN- = IN+ ≤ VCC (Notes 5, 9) 3
Reference Common Mode Rejection DC 120 140 dB 2.5V ≤ VREF ≤ VCC, GND ≤ IN- = IN+ ≤ VCC (Note 5) 3
Digital Input Low Level Voltage CS, fO, SDI VIL 0.5 V 2.7V ≤ VCC ≤ 5.5V 4
Digital Input Low Level Voltage SCK VIL 0.5 V 2.7V ≤ VCC ≤ 5.5V (Note 10) 4
Digital Input Current CS, fO, SDI IIN -10 10 µA 0V ≤ VIN ≤ VCC 4
Digital Input Current SCK IIN -10 10 µA 0V ≤ VIN ≤ VCC (Note 10) 4
Low Level Output Voltage SDO VOL 0.4 V IO = 1.6mA 4
Low Level Output Voltage SCK VOL 0.4 V IO = 1.6mA 4
Hi-Z Output Leakage SDO IOZ -10 10 µA 4
IN+ DC Leakage Current IDC_LEAK (IN+) -10 1 10 nA Sleep Mode, IN+ = GND 4
IN- DC Leakage Current IDC_LEAK (IN-) -10 1 10 nA Sleep Mode, IN- = GND 4
VREF DC Leakage Current IDC_LEAK (VREF) -100 1 100 nA Sleep Mode, VREF = VCC 4
Supply Voltage VCC 2.7 5.5 V 4
Supply Current Conversion Mode ICC 160 250 µA Conversion Mode (Note 12) 4
Supply Current Sleep Mode ICC 1 2 µA Sleep Mode (Note 12) 4
External Oscillator Frequency Range fEOSC 10 1000 kHz Note 15 5
External Oscillator High Period tHEO 0.125 100 µs 5
External Oscillator Low Period tLEO 0.125 100 µs 5
Conversion Time for 1x Speed Mode tCONV_1 157.2 160.3 163.5 ms 50Hz Mode 5
Conversion Time for 1x Speed Mode tCONV_1 131 133.6 136.3 ms 60Hz Mode 5
Conversion Time for 1x Speed Mode tCONV_1 144.1 146.9 149.9 ms Simultaneous 50Hz/60Hz Mode 5
Conversion Time for 2x Speed Mode tCONV_2 78.7 80.3 81.9 ms 50Hz Mode 5
Conversion Time for 2x Speed Mode tCONV_2 65.6 66.9 68.2 ms 60Hz Mode 5
Conversion Time for 2x Speed Mode tCONV_2 72.2 73.6 75.1 ms Simultaneous 50Hz/60Hz Mode 5
Internal SCK Duty Cycle DISCK 45 55 % Note 10 5
External SCK Frequency Range fESCK 4000 kHz Note 10 5
External SCK Low Period tLESCK 125 ns Note 10 5
External SCK High Period tHESCK 125 ns Note 10 5
Internal SCK 32-Bit Data Output Time tDOUT_ISCK 0.81 0.83 0.85 ms Internal Oscillator (Notes 10, 12) 5
CS↓ to SDO Low t1 0 200 ns 5
CS↑ to SDO Hi-Z t2 0 200 ns 5
CS↓ to SCK↓ t3 0 200 ns Note 10 5
CS↓ to SCK↑ t4 50 ns Note 10 5
SCK↓ to SDO Valid tKQMAX 200 ns 5
SDO Hold After SCK↓ tKQMIN 15 ns Note 5 5
SCK Set-Up Before CS↓ t5 50 ns 5
SCK Hold After CS↓ t6 50 ns 5
SDI Setup Before SCK↑ t7 100 ns Note 5 5
SDI Hold After SCK↑ t8 100 ns Note 5 5
Supply Voltage (absolute maximum) VCC -0.3 6 V Voltage to GND (Note 2) 2
Storage Temperature Range -65 125 °C 2
Operating Temperature Range TA -40 85 °C LTC2484I 2
Maximum Junction Temperature TJMAX 125 °C 2
Junction-to-Ambient Thermal Resistance θJA 43 °C/W 2
Output Noise 0.6 µVRMS 5V ≤ VCC ≤ 5.5V, VREF = 5V, GND ≤ IN- = IN+ ≤ VCC (Note 13) 2
Offset Error Drift 10 nV/°C 2.5V ≤ VREF ≤ VCC, GND ≤ IN+ = IN- ≤ VCC 2
Positive Full-Scale Error Drift 0.1 ppm of VREF/°C 2.5V ≤ VREF ≤ VCC, IN+ = 0.75VREF, IN- = 0.25VREF 2

CAD (KiCad official)

  • Symbol: LTC2484IDD#TRPBF
  • Footprint: Package_DFN_QFN:DFN-10-1EP_3x3mm_P0.5mm_EP1.55x2.48mm
  • 3D model: DFN-10-EP(3x3) (KiCad packages3D, STEP)
  • 3D model files: ltc2484idd-trpbf-etched.step / ltc2484idd-trpbf-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ltc2484idd-trpbf.step / ltc2484idd-trpbf.glb are the bare package body.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: Analog Devices datasheet (42 pp, sha256 6294e4f062f9f860, retrieved 2026-10-18, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF