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CA-IS1306AM25W

Chipanalog · Digital Isolators · SOIC-16-300mil

CA-IS1306AM25W from Chipanalog, in a SOIC-16-300mil. 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 AVDD power_in Power supply input for the input-side (analog input-side), 3.0V to 5.5V; bypass AVDD to AGND with 0.1μF//2.2μF capacitors as close to the device as possible.
2 AINP input Noninverting analog input; external shunt resistor connection input (power-side) for current sense.
3 AINN input Inverting analog input; external shunt resistor connection input (load-side) for current sense.
4 AGND power_in High-side (input-side) ground.
5 NC unconnected No connection; left floating or connect to AVDD or AGND.
6 NC unconnected No connection; left floating or connect to AVDD or AGND.
7 NC unconnected No connection; left floating or connect to AVDD or AGND.
8 AGND power_in High-side (input-side) ground.
9 DGND power_in Low-side (output-side) ground.
10 NC unconnected No connection; left floating or connect to DVDD or DGND.
11 DOUT output Modulator bit-stream output.
12 NC unconnected No connection; left floating or connect to DVDD or DGND.
13 CLKIN input Modulator clock input (5 MHz to 21 MHz) with internal 1.5-MΩ pulldown resistor.
14 DVDD power_in Low-side (digital output-side) power supply, 3.0V to 5.5V; bypass DVDD to DGND with 0.1μF//2.2μF capacitors as close to the device as possible.
15 NC unconnected No connection; left floating or connect to DVDD or DGND.
16 DGND power_in Low-side (output-side) ground.

Key specifications

Parameter Value
Manufacturer Chipanalog
Package SOIC-16-300mil
Category Communication Interface Chip/UART/485/232
Pins 16

Electrical characteristics

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

Parameter Symbol Min Typ Max Unit Conditions Page
Supply voltage (AVDD, DVDD) AVDD, DVDD -0.5 6.5 V 7
Analog input voltage (AINP, AINN) -6 6.5 V AGND, 6 to 6.5 V 7
Digital input or output voltage (CLKIN, DOUT) -0.5 0.5 V DGND, 0.5 to DVDD + 0.5 7
Input current to any pin except supply pins IIN -10 10 mA 7
Junction temperature TJ 150 °C 7
Storage temperature TSTG -65 150 °C 7
High-side supply voltage AVDD 3 5 5.5 V with respect to AGND 7
Low-side supply voltage DVDD 3 3.3 5.5 V with respect to DGND 7
Operating ambient temperature TA -40 125 °C 7
Differential analog input range AINP, AINN -250 250 mV 7
Junction-to-ambient thermal resistance RθJA 110.1 °C/W 7
Junction-to-case (top) thermal resistance RθJC(top) 51.7 °C/W 7
Junction-to-board thermal resistance RθJB 66.4 °C/W 7
Specified linear full-scale input range VFSR -250 250 mV AINP, AINN 10
Operating common-mode input voltage VCM -0.16 V (AINP + AINN) / 2 to AGND; max AVDD, 2.1 10
Input current IIN -41 -30 -24 μA AINP = AINN = AGND, IIN = (IINP + IINN) / 2 10
Common-mode transient immunity CMTI 100 150 kV/μs /AGND, DGND/ = 1.5 kV 10
Differential nonlinearity DNL -0.99 0.99 LSB Resolution: 16 bits 10
Integral nonlinearity INL -6 2 6 LSB Resolution: 16 bits 10
Offset error EO -100 4.5 100 μV Initial, at TA = 25°C, AINP = AINN = AGND 10
Offset drift TCEO -3.5 0.5 3.5 μV/°C 10
Gain error EG -0.2 0.05 0.2 % Initial, at TA = 25°C 10
Gain drift TCEG -40 20 40 ppm/°C 10
Digital input current IIN 0 7 μA DGND ≤ VIN ≤ DVDD 11
Logic high-level input voltage VIH 0.7 V min 0.7 × DVDD; max DVDD + 0.3 V; min value is the 0.7 factor times DVDD 11
Logic low-level input voltage VIL -0.3 0.3 V max 0.3 × DVDD 11
Logic high-level output voltage VOH -0.1 V IOH = -20 μA; min DVDD, 0.1 11
Logic high-level output voltage VOH -0.4 V IOH = -4 mA; min DVDD, 0.4 11
Logic low-level output voltage VOL 0.1 V IOL = 20 μA 11
Logic low-level output voltage VOL 0.4 V IOL = 4 mA 11
AVDD undervoltage threshold AVDDUV 2.5 2.7 V AVDD rising 11
High-side supply current IAVDD 10.5 15 mA 3.0 V ≤ AVDD ≤ 3.6 V 11
High-side supply current IAVDD 11.5 16.5 mA 4.5 V ≤ AVDD ≤ 5.5 V 11
Low-side supply current IDVDD 3.3 5.3 mA 3.0 V ≤ DVDD ≤ 3.6 V, CL = 15 pF 11
Low-side supply current IDVDD 4 7 mA 4.5 V ≤ DVDD ≤ 5.5 V, CL = 15 pF 11
CLKIN clock frequency fCLKIN 5 21 MHz 4.5 V ≤ AVDD ≤ 5.5 V 12
CLKIN clock frequency fCLKIN 5 20 MHz 3.0 V ≤ AVDD ≤ 5.5 V 12
CLKIN clock duty cycle Duty Cycle 45 50 55 % tHIGH / tCLKIN, 3.0 V ≤ AVDD ≤ 5.5 V 12
CLKIN clock duty cycle Duty Cycle 42.5 50 57.5 % tHIGH / tCLKIN, 4.5 V ≤ AVDD ≤ 5.5 V 12
Delay time of DOUT after rising edge of CLKIN td 16 ns CL = 15 pF 12
Rise time of DOUT tr 1.8 5 ns CL = 15 pF 12
Fall time of DOUT tf 1.8 5 ns CL = 15 pF 12

Materials and finish

As the datasheet states them (page.json metadata.appearance; the 3D model's colours follow it).

Part Material Colour / plating Datasheet says Page
contacts copper the AINN pins to large copper traces. Keep the part away from other heat‐generating devices. For accurate measurement of 25

CAD (KiCad official)

  • Symbol: CA-IS1306AM25W
  • Footprint: Package_SO:SOIC-16W_7.5x10.3mm_P1.27mm
  • 3D model: SOIC-16-300mil (KiCad packages3D, STEP)
  • 3D model files: ca-is1306am25w-etched.step / ca-is1306am25w-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ca-is1306am25w.step / ca-is1306am25w.glb are the bare package body.

Provenance

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

  • Datasheet: Chipanalog datasheet (29 pp, sha256 301d239d82f9aa4d, retrieved 2026-11-10, tier: lcsc)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-sonnet-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