# LM248D

**Texas Instruments** · Pre-ordered Chips · SOIC-14

LM248D from Texas Instruments, in a SOIC-14. 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 | 1OUT | output | Amplifier 1 output; typical peak swing ±13 V at RL = 10 kΩ and short-circuit current ±25 mA at VCC± = ±15 V. |
| 2 | 1IN- | input | Amplifier 1 inverting input; input voltage magnitude must not exceed the supply voltage or ±18 V for the LM248. |
| 3 | 1IN+ | input | Amplifier 1 non-inverting input; input voltage magnitude must not exceed the supply voltage or ±18 V for the LM248. |
| 4 | VCC+ | power_in | Positive supply, recommended 4 V to 18 V (absolute maximum 18 V for the LM248). |
| 5 | 2IN+ | input | Amplifier 2 non-inverting input; input voltage magnitude must not exceed the supply voltage or ±18 V for the LM248. |
| 6 | 2IN- | input | Amplifier 2 inverting input; input voltage magnitude must not exceed the supply voltage or ±18 V for the LM248. |
| 7 | 2OUT | output | Amplifier 2 output; typical peak swing ±13 V at RL = 10 kΩ and short-circuit current ±25 mA at VCC± = ±15 V. |
| 8 | 3OUT | output | Amplifier 3 output; typical peak swing ±13 V at RL = 10 kΩ and short-circuit current ±25 mA at VCC± = ±15 V. |
| 9 | 3IN- | input | Amplifier 3 inverting input; input voltage magnitude must not exceed the supply voltage or ±18 V for the LM248. |
| 10 | 3IN+ | input | Amplifier 3 non-inverting input; input voltage magnitude must not exceed the supply voltage or ±18 V for the LM248. |
| 11 | VCC- | power_in | Negative supply, recommended -4 V to -18 V (absolute maximum -18 V for the LM248). |
| 12 | 4IN+ | input | Amplifier 4 non-inverting input; input voltage magnitude must not exceed the supply voltage or ±18 V for the LM248. |
| 13 | 4IN- | input | Amplifier 4 inverting input; input voltage magnitude must not exceed the supply voltage or ±18 V for the LM248. |
| 14 | 4OUT | output | Amplifier 4 output; typical peak swing ±13 V at RL = 10 kΩ and short-circuit current ±25 mA at VCC± = ±15 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOIC-14 |
| Category | Interface ICs |
| Pins | 14 |

## Electrical characteristics

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

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input offset voltage | VIO |  | 1 | 6 | mV | VO = 0, 25°C | 3 |
| Input offset voltage, full range | VIO |  |  | 7.5 | mV | VO = 0, Full range (-25°C to 85°C) | 3 |
| Input offset current | IIO |  | 4 | 50 | nA | VO = 0, 25°C | 3 |
| Input offset current, full range | IIO |  |  | 125 | nA | VO = 0, Full range (-25°C to 85°C) | 3 |
| Input bias current | IIB |  | 30 | 200 | nA | VO = 0, 25°C | 3 |
| Input bias current, full range | IIB |  |  | 500 | nA | VO = 0, Full range (-25°C to 85°C) | 3 |
| Common-mode input voltage range | VICR | -12 |  | 12 | V | Full range | 3 |
| Maximum peak output voltage swing | VOM | -12 | 13 | 12 | V | RL = 10 kΩ, 25°C | 3 |
| Maximum peak output voltage swing | VOM | -12 |  | 12 | V | RL ≥ 10 kΩ, Full range | 3 |
| Maximum peak output voltage swing | VOM | -10 | 12 | 10 | V | RL = 2 kΩ, 25°C | 3 |
| Maximum peak output voltage swing | VOM | -10 |  | 10 | V | RL ≥ 2 kΩ, Full range | 3 |
| Large-signal differential voltage amplification | AVD | 25 | 160 |  | V/mV | VO = ±10 V, RL ≥ 2 kΩ, 25°C | 3 |
| Large-signal differential voltage amplification, full range | AVD | 15 |  |  | V/mV | VO = ±10 V, RL ≥ 2 kΩ, Full range | 3 |
| Input resistance | ri | 0.8 | 2.5 |  | MΩ | 25°C (not production tested) | 3 |
| Unity-gain bandwidth | B1 |  | 1 |  | MHz | AVD = 1, 25°C | 3 |
| Phase margin | φm |  | 60 |  | ° | AVD = 1, 25°C | 3 |
| Common-mode rejection ratio | CMRR | 70 | 90 |  | dB | VIC = VICRmin, VO = 0, 25°C | 3 |
| Common-mode rejection ratio, full range | CMRR | 70 |  |  | dB | VIC = VICRmin, VO = 0, Full range | 3 |
| Supply-voltage rejection ratio | kSVR | 77 | 96 |  | dB | VCC± = ±9 V to ±15 V, VO = 0, 25°C | 3 |
| Supply-voltage rejection ratio, full range | kSVR | 77 |  |  | dB | VCC± = ±9 V to ±15 V, VO = 0, Full range | 3 |
| Short-circuit output current | IOS |  | 25 |  | mA | 25°C (printed ±25) | 3 |
| Supply current (four amplifiers) | ICC |  | 2.4 | 4.5 | mA | No load, VO = 0, 25°C | 3 |
| Crosstalk attenuation | VO1/VO2 |  | 120 |  | dB | f = 1 Hz to 20 kHz, 25°C | 3 |
| Slew rate at unity gain | SR |  | 0.5 |  | V/µs | RL = 2 kΩ, CL = 100 pF, VCC± = ±15 V, TA = 25°C | 4 |
| Supply voltage VCC+ | VCC+ | 4 |  | 18 | V |  | 2 |
| Supply voltage VCC- | VCC- | -4 |  | -18 | V |  | 2 |
| Supply voltage VCC+ | VCC+ |  |  | 18 | V | LM248 | 2 |
| Supply voltage VCC- | VCC- | -18 |  |  | V | LM248 | 2 |
| Differential input voltage | VID | -36 |  | 36 | V | LM248; printed as 36 V | 2 |
| Input voltage (either input) | VI | -18 |  | 18 | V | LM248; printed as -18 V, not to exceed supply magnitude | 2 |
| Operating virtual junction temperature | TJ |  |  | 150 | °C |  | 2 |
| Storage temperature range | Tstg | -65 |  | 150 | °C |  | 2 |
| Lead temperature 1,6 mm from case for 60 seconds |  |  |  | 260 | °C | D, N, or NS package | 2 |
| Package thermal impedance | θJA |  |  | 86 | °C/W | D package, JESD 51-7 | 2 |
| Operating free-air temperature | TA | -25 |  | 85 | °C | LM248 full range | 3 |

## CAD (KiCad official)

- Symbol: `LM248D`
- Footprint: `Package_SO:SOIC-14_3.9x8.7mm_P1.27mm`
- 3D model: SOIC-14 (KiCad packages3D, STEP)
- 3D model files: `lm248d-etched.step` / `lm248d-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm248d.step` / `lm248d.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/lm248d.pdf) (17 pp, sha256 `e7fbfd5a73a105e0`, retrieved 2026-10-30, tier: manufacturer)
- **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](docs/lm248d-datasheet.pdf)