component
LTC2801IDE#PBF
Public Made by Adomby adom
Analog Devices RS232 ICs, DFN-12-EP(3x4). Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
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|---|---|
| docs | 11d ago |
| viewers | 11d ago |
| ltc2801ide-pbf-etched.glb | 11d ago |
| ltc2801ide-pbf-etched.step | 11d ago |
| ltc2801ide-pbf-hero.glb | 11d ago |
| ltc2801ide-pbf-hero.overlay.json | 11d ago |
| ltc2801ide-pbf.glb | 11d ago |
| ltc2801ide-pbf.kicad_mod | 11d ago |
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| ltc2801ide-pbf.lbr | 11d ago |
| ltc2801ide-pbf.step | 11d ago |
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| README.md | 11d ago |
LTC2801IDE#PBF
Analog Devices · RS232 ICs · DFN-12-EP(3x4)
LTC2801IDE#PBF from Analog Devices, in a DFN-12-EP(3x4). 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 | RIN | input | RS-232 receiver input with an internal 5kΩ termination resistor, rated for -25V to 25V absolute maximum. |
| 2 | TOUT | output | RS-232 driver output, which can be shorted to ground or driven up to ±15V without damage (absolute maximum -15V to 15V). |
| 3 | VCC | power_in | Input supply pin for 1.8V to 5.5V operation, to be bypassed to GND with a 1µF capacitor. |
| 4 | VDD | power_out | Generated positive supply for the RS-232 driver, regulated to 7V, with a 1µF capacitor connected between VDD and GND. |
| 5 | SW | passive | Switch pin of the DC-DC converter, which connects to a 10µH inductor between SW and VCC. |
| 6 | GND | power_in | Ground reference for the device. |
| 7 | CAP | passive | Charge-pump capacitor for the generated negative supply, with a 220nF capacitor connected between CAP and SW. |
| 8 | PS | input | Power supply control pin, referenced to VL, that enables the integrated DC-DC converter (absolute maximum -0.3V to VL + 0.3V). |
| 9 | MODE | input | Mode control pin, referenced to VL, that selects the operating mode per Table 1 (absolute maximum -0.3V to 7V). |
| 10 | VL | power_in | Logic supply for the receiver outputs, driver inputs and control inputs, operating from 1.8V to 5.5V and bypassed with 220nF if not tied to VCC. |
| 11 | TIN | input | Driver input referenced to VL (absolute maximum -0.3V to 7V). |
| 12 | ROUT | output | Receiver output referenced to VL, short-circuit protected to GND, VCC and VL, and high impedance in Shutdown mode. |
| 13 | VEE | power_out | Generated negative supply for the RS-232 driver, regulated to -6.3V, with a 1µF capacitor between VEE and GND; this is also the exposed backside thermal pad, which must be soldered to the PCB. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | DFN-12-EP(3x4) |
| Category | Communication Interface Chip/UART/485/232 |
| Pins | 13 |
Electrical characteristics
Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).
| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VCC Supply Current, Normal Mode (Outputs Unloaded) | ICC | 2.3 | mA | Outputs Unloaded, Normal Mode (Note 3) | 3 | ||
| VCC Supply Current, Receivers Active Mode | ICC | 1 | 10 | µA | Receivers Active Mode | 3 | |
| VCC Supply Current, Shutdown Mode | ICC | 1 | 10 | µA | Shutdown Mode | 3 | |
| VL Supply Current, Normal Mode (LTC2801, LTC2802) | IL | 0.08 | 0.15 | mA | Outputs Unloaded, Normal Mode (LTC2801, LTC2802) | 3 | |
| VL Supply Current, Receivers Active Mode | IL | 15 | 30 | µA | Receivers Active Mode | 3 | |
| VL Supply Current, Shutdown Mode | IL | 1 | 10 | µA | Shutdown Mode | 3 | |
| Driver Output Voltage Low | VOLD | -5 | -5.7 | V | RL = 3kΩ, Low | 3 | |
| Driver Output Voltage High | VOHD | 5 | 6.2 | V | RL = 3kΩ, High | 3 | |
| Output Short Circuit Current (driver) | IOSD | -70 | 35 | 70 | mA | VL = VCC = 5.5V; VTOUT = 0V | 3 |
| Power-Off Output Leakage Current | IPOLD | -10 | 0.1 | 10 | µA | VL = VCC = VDD = VEE = 0V; VTOUT = ±2V | 3 |
| Output Leakage Current | IOLD | -10 | 0.1 | 10 | µA | Shutdown or Receivers Active or Drivers Disabled Modes, -15V ≤ VTOUT ≤ 15V | 3 |
| Input Threshold, Receivers Active Mode | VIR | 0.8 | 1.5 | 2.4 | V | Receivers Active Mode | 3 |
| Input Threshold, Normal Mode, Input Low | VILR | 0.8 | 1.3 | V | Normal Mode, Input Low | 3 | |
| Input Threshold, Normal Mode, Input High | VIHR | 1.7 | 2.5 | V | Normal Mode, Input High | 3 | |
| Input Hysteresis, Normal Mode | VHYSR | 0.1 | 0.4 | 1 | V | Normal Mode | 3 |
| Receiver Output Voltage Low | VOLR | 0.2 | 0.4 | V | Output Low, IROUT = 1mA (Sinking) | 3 | |
| Receiver Input Resistance | RIN | 3 | 5 | 7 | kΩ | -15V ≤ VRIN ≤ 15V | 3 |
| Receiver Output Short Circuit Current | IOSR | -50 | 25 | 50 | mA | VL = 5.5V; 0V ≤ VROUT ≤ VL | 3 |
| Logic Input Voltage Threshold (lower limit; upper limit printed as 0.67 • VL) | 0.4 | V | 3 | ||||
| Logic Input Current | IIN | -1 | 1 | µA | 3 | ||
| Maximum Data Rate (LTC2801) | 100 | kbps | RL = 3kΩ, CL = 2.5nF (Note 3) | 4 | |||
| Maximum Data Rate (LTC2801) | 250 | kbps | RL = 3kΩ, CL = 1nF (Note 3) | 4 | |||
| Driver Slew Rate (LTC2801) | SR(D) | 4 | V/µs | VCC = VL = 1.8V, RL = 3kΩ, CL = 2.5nF (Figure 1) | 4 | ||
| Driver Slew Rate (LTC2801) | SR(D) | 30 | V/µs | VCC = VL = 5.5V, RL = 3kΩ, CL = 50pF (Figure 1) | 4 | ||
| Driver Propagation Delay (LTC2801) | tPHLD, tPLHD | 1 | 2 | µs | RL = 3kΩ, CL = 50pF (Figure 2) | 4 | |
| Driver Skew (LTC2801) | tSKEWD | 100 | ns | RL = 3kΩ, CL = 50pF (Figure 2) | 4 | ||
| Driver Output Enable Time | tPZHD, tPZLD | 0.6 | 2 | µs | PS = VL, MODE = ↑, RL = 3kΩ, CL = 50pF (Figure 4) | 4 | |
| Driver Output Disable Time | tPHZD, tPLZD | 0.3 | 2 | µs | PS = VL, MODE = ↓, RL = 3kΩ, CL = 50pF (Figure 4) | 4 | |
| Receiver Propagation Delay | tPHLR, tPLHR | 0.2 | 0.4 | µs | CL = 150pF (Figure 3) | 4 | |
| Receiver Skew | tSKEWR | 50 | ns | CL = 150pF (Figure 3) | 4 | ||
| Receiver Rise or Fall Time | tRR, tFR | 60 | 200 | ns | CL = 150pF (Figure 3) | 4 | |
| Shutdown to Receiver Output Enable | tPZHR, tPZLR | 5 | 15 | µs | PS = MODE = ↑ or ON/OFF = ↑, RL = 1kΩ, CL = 150pF (Figure 5) | 4 | |
| Receiver Output Disable upon Shutdown | tPHZR, tPLZR | 0.15 | 0.3 | µs | PS = MODE = ↓ or ON/OFF = ↓, RL = 1kΩ, CL = 150pF (Figure 5) | 4 | |
| VDD/VEE Supply Rise Time | 0.2 | 2 | ms | Notes 3 and 4 | 4 | ||
| VCC Input Supply Voltage | VCC | 1.8 | 5.5 | V | Test conditions range | 3 | |
| VL Logic Supply Voltage | VL | 1.8 | 5.5 | V | Test conditions range | 3 | |
| Operating Temperature (LTC280XI, -40C to 85C grade) | -40 | 85 | °C | LTC280XI grade | 2 | ||
| VCC (absolute maximum) | VCC | -0.3 | 7 | V | 2 | ||
| VL (absolute maximum) | VL | -0.3 | 6.7 | V | 2 | ||
| VDD (absolute maximum; min printed as VCC -0.3V) | VDD | 7.5 | V | 2 | |||
| VEE (absolute maximum; printed as 0.3V to -7.5V) | VEE | -7.5 | 0.3 | V | 2 | ||
| VDD, VEE (absolute maximum) | VDD, VEE | 14 | V | 2 | |||
| SW (absolute maximum; max printed as VDD + 0.3V) | SW | -0.3 | V | 2 | |||
| CAP (absolute maximum; min printed as VEE, 0.3V) | CAP | 0.3 | V | 2 | |||
| TIN, T1IN, T2IN, MODE (absolute maximum) | TIN | -0.3 | 7 | V | 2 | ||
| PS, ON/OFF (absolute maximum; max printed as VL + 0.3V) | PS | -0.3 | V | 2 | |||
| RIN, R1IN, R2IN (absolute maximum) | RIN | -25 | 25 | V | 2 | ||
| TOUT, T1OUT, T2OUT (absolute maximum) | TOUT | -15 | 15 | V | 2 | ||
| ROUT, R1OUT, R2OUT (absolute maximum; max printed as VL + 0.3V) | ROUT | -0.3 | V | 2 | |||
| Storage Temperature Range | -65 | 125 | °C | 2 | |||
| Thermal Resistance Junction-to-Ambient (DE 12-lead DFN, 4 layer) | θJA | 43 | °C/W | 4 Layer | 2 | ||
| Thermal Resistance Junction-to-Case (DE 12-lead DFN, 4 layer) | θJC | 4.3 | °C/W | 4 Layer | 2 | ||
| Maximum Junction Temperature (DE package) | TJMAX | 125 | °C | DE package | 2 |
CAD (KiCad official)
- Symbol:
LTC2801IDE#PBF - Footprint:
Package_DFN_QFN:DFN-12-1EP_3x4mm_P0.5mm_EP1.7x3.3mm - 3D model: DFN-12-EP(3x4) (KiCad packages3D, STEP)
- 3D model files:
ltc2801ide-pbf-etched.step/ltc2801ide-pbf-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);ltc2801ide-pbf.step/ltc2801ide-pbf.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Analog Devices datasheet (18 pp, sha256
e9ad4ef1183d2db6, retrieved 2026-10-21, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).