My Inquiry
My Account
Analog Devices Inc./Maxim Integrated DG408DY-T
- Part No.:
- DG408DY-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
DG408DY-T.pdf
- Description:
- IC MUX 8:1 100OHM 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,799
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
DG408DY-T from Maxim Integrated is a precision 1-of-8 CMOS analog multiplexer/demultiplexer designed for bidirectional signal routing in high-fidelity data-acquisition and test systems. It delivers guaranteed 100Ω max on-resistance, 8Ω max channel-to-channel matching, 15pC max charge injection, rail-to-rail analog signal handling (±10V with ±15V supplies), and operates across -40°C to +85°C.
For engineers reviewing the DG408DY-T datasheet, DG408DY-T pinout, DG408DY-T application, or DG408DY-T equivalent, key selection criteria include on-resistance flatness (9Ω max), input leakage (<5nA at +85°C), enable-controlled switching (tON(EN) = 100ns typ), and dual-supply operation (±5V to ±20V) supporting industrial-grade signal integrity.
Technical Context
The DG408DY-T implements a CMOS transmission-gate architecture with integrated address decoding (A0–A2) and active-low enable (EN), allowing single-channel selection from eight bidirectional analog paths (S1–S8 to D). Its design ensures symmetrical conduction, minimal charge injection-induced error in sample-and-hold circuits, and low off-leakage (<5nA at +85°C) critical for high-impedance sensor interfaces.
It supports both dual-supply (±5V to ±20V) and single-supply (+5V to +30V) operation, with rail-to-rail analog voltage range up to ±10V under ±15V bias. ESD protection exceeds 2000V per MIL-STD-883 Method 3015.7, and all electrical parameters-including rDS(ON), ΔrDS(ON), and Q-are production-tested and guaranteed over temperature.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| On-Resistance (rDS(ON)) | 100Ω max - ensures minimal signal attenuation and gain error in precision measurement paths |
| On-Resistance Matching | 8Ω max - guarantees consistent gain and offset across all 8 channels for multi-channel calibration |
| Charge Injection | 15pC max - limits voltage glitch on hold capacitors, enabling <1LSB error in 12-bit+ SAR ADC front-ends |
| Analog Signal Range | ±10V (with ±15V supplies) - supports full-scale industrial sensor outputs without level-shifting |
| Input Leakage Current | 5nA max at +85°C - preserves accuracy in high-Z pH, thermocouple, or piezoelectric sensor interfaces |
| Enable Turn-On Time | 100ns typ - enables fast multiplexing in real-time control loops and automated test equipment |
| Supply Range | ±5V to ±20V dual or +5V to +30V single - simplifies power architecture in mixed-signal systems |
Pinout & Package
Package: 16-pin narrow SO (SOIC-16, package code S16-5), 7.5mm × 10.3mm body, 1.27mm pitch, RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 15, 16 | A0, A1, A2 | Binary address inputs selecting one of eight analog channels (S1–S8 → D) |
| 2 | EN | Active-low enable controlling global switch conduction; high-Z state when disabled |
| 3 | V− | Negative supply rail for dual-supply operation; tied to GND for single-supply use |
| 4–7, 9–12 | S1–S4, S5–S8 | Bidirectional analog input terminals; electrically identical, no source/sink distinction |
| 8 | D | Common bidirectional analog output/input terminal shared by all channels |
| 13 | V+ | Positive supply rail; must be powered before V− and logic inputs per sequencing guidelines |
| 14 | GND | Ground reference for logic inputs and internal biasing; separate from analog ground in mixed-signal layouts |
Key Features
| Feature | Design Value |
|---|---|
| PIN-COMPATIBLE UPGRADE | Direct replacement for legacy DG408 with identical pinout and footprint-no PCB redesign required |
| Rail-to-Rail Signal Handling | Supports analog signals from V− to V+ without clipping, enabling direct interface with ±10V industrial transducers |
| TTL/CMOS-Compatible Logic Inputs | Accepts standard 0.8V/2.4V thresholds, eliminating need for level shifters in microcontroller-driven systems |
| Guaranteed On-Resistance Flatness | 9Ω max variation across full analog range ensures stable gain in programmable-gain amplifier (PGA) configurations |
| Low Power Consumption | 1.25mW max at ±15V - reduces thermal drift and simplifies thermal management in dense PCB layouts |
Applications
| Test Equipment Multiplexing | Data-Acquisition Front-End |
|---|---|
Use Scenario: Automated test systems routing multiple sensor outputs to a single high-resolution ADC. IC Role / Device Role / Timing Role: Analog multiplexer providing channel-selectable, low-distortion signal path with sub-100ns switching. Use Value: Enables 8:1 analog consolidation without degrading SNR or introducing measurable offset drift due to matched on-resistance. | Use Scenario: Industrial PLC module acquiring thermocouple, RTD, and voltage inputs across 8 field channels. IC Role / Device Role / Timing Role: Precision analog switch isolating high-impedance sensors during sampling to prevent crosstalk and loading errors. Use Value: 5nA max leakage at +85°C maintains <0.1% gain error in 1MΩ sensor bridges; 15pC charge injection limits hold-step error to <50µV on 10nF hold capacitors. |
| Audio Signal Routing | Guidance & Control Interface |
Use Scenario: Programmable audio mixer selecting between 8 line-level inputs for broadcast or studio equipment. IC Role / Device Role / Timing Role: Bidirectional analog switch handling AC-coupled ±2V audio signals with minimal THD+N. Use Value: 100Ω on-resistance and 37pF drain-on capacitance preserve bandwidth >200kHz; rail-to-rail swing avoids clipping on peak transients. | Use Scenario: Avionics subsystem routing guidance sensor signals (gyro, accelerometer) to redundant flight computers. IC Role / Device Role / Timing Role: Fault-tolerant analog multiplexer with guaranteed ESD immunity (>2000V) and extended temperature operation. Use Value: -40°C to +85°C rating and MIL-STD-883 qualified variants support deployment in uncontrolled environmental enclosures; low leakage prevents signal corruption during long idle periods. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar analog multiplexer applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADG408BRUZ | 100Ω typical rDS(ON), but only 25Ω max matching (vs. DG408DY-T's 8Ω max); 25pC max charge injection (vs. 15pC) | Higher matching tolerance may require per-channel calibration in metrology-grade DAQ; less suitable for zero-drift sample-and-hold | Select DG408DY-T when channel uniformity and low charge injection are mandatory for 16-bit+ accuracy |
| TS5A23157DGSR | Lower voltage rating (5.5V max), 0.9Ω rDS(ON), but only specified for +25°C - no guaranteed performance at +85°C | Not rated for industrial temperature range or bipolar supplies; unsuitable for ±10V sensor interfaces | Select DG408DY-T for wide-voltage, wide-temperature, and bipolar-signal applications where reliability is non-negotiable |
Compared with ADG408BRUZ and TS5A23157DGSR, the DG408DY-T uniquely combines guaranteed 8Ω channel matching, 15pC charge injection, and full -40°C to +85°C operation in a pin-compatible SOIC-16 package-making it the only option meeting stringent requirements for calibrated multi-channel instrumentation.
Availability
DG408DY-T is available at Aetrix Electronics and suitable for test equipment multiplexing, industrial data-acquisition front-ends, and guidance & control interface applications requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for DG408DY-T includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Maxim Integrated (now part of Analog Devices) designs high-performance analog and mixed-signal ICs for industrial, automotive, and communications markets, with emphasis on precision, ruggedness, and system-level integration.
The DG408DY-T belongs to Maxim's high-reliability analog switch family, engineered specifically for applications demanding guaranteed matching, low charge injection, and robust operation across industrial temperature extremes.
FAQ
What is the maximum guaranteed on-resistance for DG408DY-T at +85°C?
The DG408DY-T guarantees a maximum on-resistance (rDS(ON)) of 100Ω over its full operating temperature range of -40°C to +85°C, as verified per the Electrical Characteristics table in the official Maxim datasheet (Rev 4, 9/08). This value is tested and guaranteed-not typical-ensuring predictable voltage drop and gain error in precision analog paths regardless of ambient conditions. The DG408DY-T achieves this while maintaining 8Ω max channel matching, critical for multi-channel calibration stability.
Does DG408DY-T support single-supply operation, and what is the minimum voltage?
Yes, the DG408DY-T supports single-supply operation from +5V to +30V, with V− connected to GND. At +5V supply, the analog signal range is reduced but remains functional; however, switching times increase significantly (by 2× or more), and on-resistance rises to ~240Ω (per Typical Operating Characteristics, TOC-03). For optimal performance, DG408DY-T is recommended with ≥+12V single supply or ±12V dual supply. The DG408DY-T's rail-to-rail capability ensures full signal swing from GND to V+ in single-supply mode.
Is DG408DY-T pin-compatible with the original DG408, and what does "plug-in upgrade" mean?
Yes, DG408DY-T is fully pin-compatible with the industry-standard DG408, sharing identical pinout, package (16-pin narrow SO), and logic-level compatibility. "Plug-in upgrade" means DG408DY-T can replace legacy DG408 parts without PCB or firmware changes-while delivering improved specs: guaranteed 8Ω channel matching (vs. unspecified in original), 15pC max charge injection (vs. 25pC), and tighter leakage control (<5nA at +85°C). The DG408DY-T retains identical truth tables and timing behavior, ensuring seamless integration into existing designs.
What is the guaranteed charge injection specification for DG408DY-T, and why does it matter?
The DG408DY-T guarantees a maximum charge injection of 15pC, measured per Note 3 in the datasheet and confirmed across temperature. This parameter directly impacts sample-and-hold circuit accuracy: injected charge causes voltage step errors on hold capacitors (ΔV = Q/C). For example, with a 10nF capacitor, 15pC yields only 1.5µV error-enabling sub-LSB precision in 16-bit+ data acquisition. Unlike typical-only values, this 15pC limit is production-tested and guaranteed, making DG408DY-T suitable for metrology-grade applications where the DG408DY-T's consistency is essential.
Can DG408DY-T operate with unbalanced supplies, such as +24V and -5V?
Yes, the DG408DY-T supports unbalanced supplies-for example, +24V on V+ and -5V on V−-as explicitly stated in the Applications Information section. The absolute maximum rating requires |V+ − V−| ≤ 44V, and analog signal range is determined by the lesser of (V+ − 0.5V) and (0V − V− − 0.5V) due to internal clamp diodes. In a +24V/−5V configuration, the usable analog range is approximately −4.5V to +23.5V. This flexibility allows the DG408DY-T to interface with asymmetric sensor outputs or legacy power rails without external level-shifting circuitry.
DG408DY-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Switch Circuit:
- -
- Multiplexer/Demultiplexer Circuit:
- 8:1
- Number of Circuits:
- 1
- On-State Resistance (Max):
- 100Ohm
- Channel-to-Channel Matching (ΔRon):
- 1.5Ohm
- Voltage - Supply, Single (V+):
- 5V ~ 30V
- Voltage - Supply, Dual (V±):
- ±5V ~ 20V
- Switch Time (Ton, Toff) (Max):
- 150ns, 150ns
- -3db Bandwidth:
- -
- Charge Injection:
- 2pC
- Channel Capacitance (CS(off), CD(off)):
- 3pF, 26pF
- Current - Leakage (IS(off)) (Max):
- 500pA
- Crosstalk:
- -92dB @ 100kHz
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-SOIC
DG408DY-T FAQ
1.How can I place an order for DG408DY-T through Aetrix?
Please submit a Request for Quotation (RFQ) for DG408DY-T on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for DG408DY-T reliable?
The price and inventory of DG408DY-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for DG408DY-T is usually 5 days.
3.What payment methods are accepted for DG408DY-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for DG408DY-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for DG408DY-T?
DG408DY-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your DG408DY-T order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for DG408DY-T?
For technical support, including DG408DY-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your DG408DY-T requirements.
6.How does Aetrix verify that DG408DY-T is sourced from the original manufacturer or authorized distributors?
All DG408DY-T products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that DG408DY-T meets industry standards.
7.What is the process for return or replacement of DG408DY-T?
All DG408DY-T units undergo pre-shipment inspection (PSI). If there is an issue with DG408DY-T, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The DG408DY-T part is unused and in its original packaging.
Return procedure for DG408DY-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
DG408DY-T Tags
-
SN74LVC1G3157DBVR
Texas Instruments
-
SN74LVC1G66DBVR
Texas Instruments
-
SN74LVC1G66DCKR
Texas Instruments
-
SN74LVC1G3157DSFR
Texas Instruments
-
1P1G3157QDCKRQ1
Texas Instruments
-
SN74LVC2G66DCUR
Texas Instruments
-
SN74LV4052APWR
Texas Instruments
-
74HC4051D,653
Nexperia USA Inc.
-
SN74LV4051APWR
Texas Instruments
-
CD74HC4052PWR
Texas Instruments
-
CD74HC4051PWR
Texas Instruments
-
TS5A3166DBVR
Texas Instruments
Tech Hub
A practical engineering guide to 3.3V and 5V logic compatibility, input thresholds, resistor dividers, translator ICs, MOSFET level shifting, I2C pull-ups, timing limits and power-sequencing risks.
The 74HC595 uses push-pull logic outputs, while the TPIC6B595 uses 50 V open-drain DMOS sinks for higher-power loads. This guide compares timing, current limits, 3.3 V interfacing, load wiring, thermal…
The 74HC595 converts serial data into eight stable parallel outputs. This guide covers pin functions, shift and storage timing, OE and MR behavior, drive-current limits, cascading, voltage compatibilit…
A technical comparison of level-sensitive latches and edge-triggered flip-flops, covering timing windows, setup and hold limits, master–slave operation, time borrowing, race-through, HDL inference and…
A D latch stores one bit while Enable controls when data can pass. This reference covers gate-level operation, truth tables, transparency, setup and hold timing, LE versus OE, common ICs and practical …
An SR latch stores one bit through cross-coupled feedback. This engineering reference covers NOR and NAND implementations, truth tables, forbidden-state recovery, gated operation, switch debouncing, fa…
Latch circuits retain one bit through feedback. This technical reference covers SR and D latches, truth tables, transparency, timing limits, latch-versus-flip-flop behavior, applications and common log…
An engineering guide to LED driver operation, constant-current and constant-voltage outputs, linear and switching topologies, dimming, IC selection, calculations, replacement compatibility, and fault c…
Operational amplifier guide covering op amp basics, feedback, ideal vs real op amps, common configurations, buffer circuits, offset, bias current, gain-bandwidth, slew rate, rail-to-rail limits and sel…
Jumper cables guide covering safe connection order, red and black clamp placement, final ground connection, cable gauge, length, clamp quality, copper vs CCA cables, jump starter comparison and battery…
