# ADM101EARMZ-REEL7

**Analog Devices** · RS232 ICs · MSOP-10

ADM101EARMZ-REEL7 from Analog Devices, in a MSOP-10. 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 | GND | power_in | Ground pin; must be connected to 0 V. |
| 2 | C1− | passive | Negative terminal of charge pump capacitor C1 (polarized capacitor orientation applies if C1 is polarized). |
| 3 | V− | power_out | Internally generated negative supply voltage; its reservoir capacitor should have low ESR, and the absolute maximum rating is +0.3 V to −6 V. |
| 4 | TIN | input | Driver input accepting 3 V to 5 V TTL/CMOS logic levels. |
| 5 | ROUT | output | Receiver output at 3 V to 5 V TTL/CMOS logic levels. |
| 6 | RIN | input | Receiver input at EIA-232 signal levels; overvoltage protected to ±30 V absolute maximum. |
| 7 | TOUT | output | Driver output at EIA-232 signal levels, typically ±4.2 V with VCC = 5 V into a 3 kΩ load; continuous short-circuit duration allowed. |
| 8 | SD | input | Shutdown input; logic 1 puts the device into low power shutdown mode, disabling the charge pump and transmitter while the receiver stays active. |
| 9 | C1+ | passive | Positive terminal of charge pump capacitor C1 (polarized capacitor orientation applies if C1 is polarized). |
| 10 | VCC | power_in | Positive power supply, nominally 5 V (5 V ±10% per the specifications; absolute maximum 6 V). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Analog Devices |
| Package | MSOP-10 |
| Category | Interface |
| Pins | 10 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Output Voltage Swing |  | 3.5 | 4.2 |  | V | VCC = 5 V ± 5%, TOUT loaded with 3 kΩ to GND | 4 |
| Output Voltage Swing |  | 3.25 | 4.2 |  | V | VCC = 5 V ± 10%, TOUT loaded with 3 kΩ to GND | 4 |
| VCC Power Supply Current (Unloaded) |  |  | 0.5 | 1 | mA | No load, TIN = VCC or GND | 4 |
| VCC Power Supply Current (Loaded) |  |  | 1.85 | 2.5 | mA | TOUT loaded with 3 kΩ to GND | 4 |
| Input Logic Threshold Low | VINL |  |  | 0.8 | V |  | 4 |
| Input Logic Threshold High | VINH | 2.4 |  |  | V |  | 4 |
| Input Leakage Current |  | -1 |  | 1 | μA |  | 4 |
| RS-232 Input Voltage Range |  | -15 |  | 15 | V |  | 4 |
| RS-232 Input Threshold Low |  | 0.8 |  | 2.2 | V |  | 4 |
| RS-232 Input Threshold High |  | 2.4 |  | 2.6 | V |  | 4 |
| RS-232 Input Resistance |  | 3 | 5 | 7 | kΩ |  | 4 |
| TTL/CMOS Output Voltage Low | VOL |  |  | 0.4 | V | IOUT = 1.6 mA | 4 |
| TTL/CMOS Output Voltage High | VOH | 3.5 |  |  | V | IOUT = −1.0 mA | 4 |
| Instantaneous Slew Rate |  | 25 |  |  | V/μs | CL = 10 pF, RL = 3 kΩ − 7 kΩ, TA = 25°C | 4 |
| RS-232 Output Short Circuit Current |  | 25 | 60 |  | mA |  | 4 |
| VCC | VCC |  |  | 6 | V |  | 5 |
| Negative supply voltage V− | V− | -6 |  | 0.3 | V |  | 5 |
| Driver Input TIN | TIN | -0.3 |  |  | V | Max printed as (VCC, +0.3 V) | 5 |
| Receiver Input RIN | RIN | -30 |  | 30 | V |  | 5 |
| Receiver Output ROUT | ROUT | -0.3 |  |  | V | Max printed as (VCC +0.3 V) | 5 |
| Power Dissipation (RM-10) |  |  |  | 1488 | mW | RM-10 package; derate 12 mW/°C above 70°C | 5 |
| Operating Temperature Range (Industrial, A Version) |  | -40 |  | 85 | °C | A version | 5 |
| Storage Temperature Range |  | -65 |  | 150 | °C |  | 5 |
| Lead Temperature Soldering, Vapor Phase |  |  |  | 215 | °C | 60 sec | 5 |
| Lead Temperature Soldering, Infrared |  |  |  | 220 | °C | 15 sec | 5 |
| ESD Rating |  | 2000 |  |  | V | Printed as >2000 V | 5 |
| ESD Rating (I-O Pins) |  | 15 |  |  | kV | I-O pins | 5 |
| Propagation Delay |  |  | 0.25 |  | μs | RS-232 to TTL | 4 |
| RS-232 Input Hysteresis |  |  | 0.2 |  | V |  | 4 |
| Transition Region Slew Rate |  |  | 11 |  | V/μs | RL = 3 kΩ, CL = 1000 pF; measured from +3 V to −3 V or vice versa | 4 |
| Baud Rate |  |  | 460 |  | kB | RL = 3 kΩ, CL = 1 nF | 4 |
| Output Resistance |  |  | 300 |  | Ω | VCC = 0 V, VOUT = ±2 V | 4 |
| VCC Power Supply Current (Shutdown) |  |  | 1 |  | μA | SD input = VCC | 4 |
| Thermal Impedance |  |  | 135 |  | °C/W |  | 5 |
| Positive Power Supply VCC (nominal) | VCC |  | 5 |  | V | 5 V ± 10% | 4 |

## CAD (KiCad official)

- Symbol: `ADM101EARMZ-REEL7`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: MSOP-10 (KiCad packages3D, STEP)
- 3D model files: `adm101earmz-reel7-etched.step` / `adm101earmz-reel7-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `adm101earmz-reel7.step` / `adm101earmz-reel7.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Analog Devices datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8586192031651934208) (13 pp, sha256 `2ed4efaead40203d`, retrieved 2026-10-19, 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](docs/adm101earmz-reel7-datasheet.pdf)