DG408DY-T1-E3 from Vishay, in a SOIC-16. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	A0	input	Address select bit 0 (LSB). TTL-compatible digital input; VIH ≥ 2.4 V, VIL ≤ 0.8 V.
2	EN	input	Active-high enable input. EN = 0 opens all switches; EN = 1 enables the channel selected by A0/A1/A2. TTL-compatible.
3	V-	power_in	Negative analog supply rail. Typically -15 V for ±15 V dual-supply operation, or 0 V (tied to GND) for single-supply operation. V+ to V- max 44 V.
4	S1	passive	Analog switch source input for channel 1. Connected to D when address = 000 and EN = 1. Analog signal range V- to V+ (100 Ω typical RDS(on)).
5	S2	passive	Analog switch source input for channel 2. Selected when address = 001 and EN = 1.
6	S3	passive	Analog switch source input for channel 3. Selected when address = 010 and EN = 1.
7	S4	passive	Analog switch source input for channel 4. Selected when address = 011 and EN = 1.
8	D	passive	Common drain (multiplexer output/input). Bidirectional analog node connected to the selected S1-S8 channel. Peak current 100 mA pulsed, 30 mA continuous per terminal.
9	S8	passive	Analog switch source input for channel 8. Selected when address = 111 and EN = 1.
10	S7	passive	Analog switch source input for channel 7. Selected when address = 110 and EN = 1.
11	S6	passive	Analog switch source input for channel 6. Selected when address = 101 and EN = 1.
12	S5	passive	Analog switch source input for channel 5. Selected when address = 100 and EN = 1.
13	V+	power_in	Positive analog supply rail. Typically +15 V dual supply or +5 V to +36 V single supply. V+ to V- ≤ 44 V absolute maximum.
14	GND	power_in	Digital ground reference for logic inputs (A0, A1, A2, EN). GND to V- limited to -25 V.
15	A2	input	Address select bit 2 (MSB). TTL-compatible digital input; VIH ≥ 2.4 V, VIL ≤ 0.8 V.
16	A1	input	Address select bit 1. TTL-compatible digital input; VIH ≥ 2.4 V, VIL ≤ 0.8 V.

Key specifications

Parameter	Value
Manufacturer	Vishay
Package	SOIC-16
Category	Interface
Pins	16

Ordering variants

Same part, different packaging or reel option.

DG408DY-T1-E3
DG408DY-T1-E3DY-E3
DG408DY-T1-E3DJ
DG408DY-T1-E3DJ-E3
DG408DY-T1-E3DQ-E3
DG408DY-T1-E3DQ-T1-E3

CAD (KiCad official)

Symbol: DG408DY-T1-E3
Footprint: Package_SO:SOIC-16_3.9x9.9mm_P1.27mm
3D model: SOIC-16 (KiCad packages3D, STEP)

Provenance

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

Datasheet: Vishay datasheet (19 pp, sha256 165f92f53a5974ee, retrieved 2026-08-17, tier: manufacturer)
Extractor: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF