My Inquiry
My Account
Analog Devices Inc. AD8220TRMZ-EP-R7
- Part No.:
- AD8220TRMZ-EP-R7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD8220TRMZ-EP-R7.pdf
- Description:
- IC OPAMP JFET 1 CIRCUIT 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,354
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD8220TRMZ-EP-R7 from Analog Devices is a JFET-input instrumentation amplifier in an 8-lead MSOP package, featuring rail-to-rail output, 25 pA max input bias current, 92 dB min CMRR at 60 Hz (G = 10), and operation from −55°C to +125°C. It enables high-precision signal conditioning in medical instrumentation and transducer interfaces with single-supply capability down to 4.5 V.
For engineers reviewing the AD8220TRMZ-EP-R7 datasheet, AD8220TRMZ-EP-R7 pinout, AD8220TRMZ-EP-R7 application, or AD8220TRMZ-EP-R7 equivalent, key selection criteria include its ultra-low input bias current, extended temperature range, gain-setting resistor interface, rail-to-rail output swing, and ESD robustness (7 kV HBM).
Technical Context
The AD8220TRMZ-EP-R7 uses a three-op-amp architecture with JFET inputs to achieve sub-100 nA input bias current over −55°C to +125°C and maintains CMRR ≥72 dB up to 5 kHz at G = 1. Its reference pin allows precise output level shifting for ADC interfacing without external circuitry.
Gain is set externally via a single resistor (RG) across Pins 2 and 3 per G = 1 + 49.4 kΩ/RG, supporting 1–1000× gain. The rail-to-rail output stage delivers >99% of supply rails into 10 kΩ loads, enabling full dynamic range utilization on low-voltage supplies like +5 V/0 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Input Bias Current | 25 pA max at 25°C; remains <100 nA over −55°C to +125°C - preserves accuracy in high-impedance sensor interfaces. |
| CMRR | 92 dB min at DC–60 Hz (G = 10); 72 dB min at 5 kHz (G = 1) - rejects interference in noisy industrial environments. |
| Bandwidth | 1.5 MHz at G = 1 - supports fast-sampling precision data acquisition up to ~1 MSPS. |
| Input Voltage Noise | 14 nV/√Hz at 1 kHz - enables resolution of µV-level signals from strain gauges or thermocouples. |
| Supply Range | 4.5 V to 36 V single supply or ±2.25 V to ±18 V dual supply - eliminates need for dual-rail generation in portable systems. |
| Quiescent Current | 750 µA max at 25°C - extends battery life in handheld diagnostic equipment. |
| ESD Rating | 7 kV HBM - withstands handling and board-level electrostatic events without protection circuitry. |
Pinout & Package
The AD8220TRMZ-EP-R7 is housed in an 8-lead MSOP (RM-8) package, measuring 3.0 mm × 3.0 mm × 1.1 mm, compliant with JEDEC MO-187-AA and RoHS-compliant (Z-grade).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (−IN) | Negative differential input | True high-impedance input node; accepts signals down to −VS − 0.1 V for single-supply operation. |
| 2, 3 (RG) | Gain-setting terminals | Resistor connected between these pins sets gain from 1 to 1000; no internal resistor required. |
| 4 (+IN) | Positive differential input | Complements −IN; forms true differential pair with matched JFET input structure. |
| 5 (−VS) | Negative power supply | Supports dual-supply operation or ground reference in single-supply mode (0 V). |
| 6 (REF) | Output reference voltage input | Drives output offset; accepts low-impedance source (e.g., DAC or voltage divider) for ADC alignment. |
| 7 (VOUT) | Amplified differential output | Rail-to-rail swing into ≥10 kΩ load; requires 47 pF capacitor if sinking >4 mA to prevent ringing. |
| 8 (+VS) | Positive power supply | Accepts 4.5 V to 36 V (single) or +2.25 V to +18 V (dual); powers all internal circuitry. |
Key Features
| Feature | Design Value |
|---|---|
| JFET input stage | Enables <100 nA input bias current over −55°C to +125°C - critical for piezoelectric and pH sensor front-ends. |
| Rail-to-rail output | Delivers >4.8 V swing on +5 V/0 V supply into 10 kΩ - maximizes SNR when driving 12- to 16-bit SAR ADCs. |
| Single-resistor gain setting | Eliminates trimming and matching components; supports precise, field-adjustable gains from 1 to 1000. |
| Enhanced product qualification | Meets AQEC standards with controlled manufacturing baseline, single fab/test site, and full qualification data on request. |
| Input voltage range below negative rail | Accepts signals down to −VS − 0.1 V - accommodates grounded sensors in single-supply systems without level-shifting. |
Applications
| Medical Patient Monitoring | Precision Strain Gauge Readout |
|---|---|
Use Scenario: Amplifying low-amplitude biopotential signals (e.g., ECG, EMG) from dry electrodes in portable monitors. IC Role / Device Role / Timing Role: Instrumentation amplifier providing high-CMRR, low-noise, and rail-to-rail output for direct connection to low-voltage ADCs. Use Value: 25 pA input bias current prevents electrode polarization drift; 14 nV/√Hz noise preserves microvolt-level signal fidelity. |
Use Scenario: Conditioning mV-level bridge outputs from metal foil or semiconductor strain gauges in structural health monitoring. IC Role / Device Role / Timing Role: Precision differential amplifier rejecting common-mode noise from long cable runs and power-line interference. Use Value: 92 dB CMRR at 60 Hz suppresses mains coupling; gain error <±0.8% at G = 100 ensures calibrated force measurement accuracy. |
| Industrial Transducer Interface | Aerospace Sensor Signal Chain |
Use Scenario: Interfacing RTDs, thermocouples, or pressure transducers in programmable logic controller (PLC) analog input modules. IC Role / Device Role / Timing Role: High-impedance, wide-supply instrumentation amplifier with reference pin for offset calibration against system ground. Use Value: REF pin enables zero-point adjustment before ADC sampling; 750 µA quiescent current reduces thermal drift in densely packed I/O cards. |
Use Scenario: Signal conditioning in flight control surface position sensors operating in −55°C to +125°C environmental chambers. IC Role / Device Role / Timing Role: Radiation-tolerant, AQEC-qualified instrumentation amplifier meeting MIL-PRF-38535 Class V requirements. Use Value: Extended temperature rating and controlled manufacturing baseline ensure reliability in defense/aerospace avionics without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar instrumentation amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD8421ARMZ | Lower input bias current (1 pA typ), higher bandwidth (10 MHz at G = 1), but requires dual supply or charge pump for single-supply rail-to-rail output. | Better for high-speed, ultra-low-bias applications (e.g., photodiode TIA front-end); less suitable for simple 5 V battery-powered designs. | Select AD8421ARMZ only when bandwidth >1 MHz and bias current <5 pA are mandatory; AD8220TRMZ-EP-R7 offers simpler supply and lower cost for <2 MHz use cases. |
| INA128UA | Higher input bias current (5 nA max), narrower temp range (−40°C to +85°C), no rail-to-rail output (limited to ±13 V on ±15 V supply). | Suitable for commercial-grade industrial data loggers where extended temperature and rail-to-rail swing are not required. | Choose INA128UA for cost-sensitive, non-military applications with standard temp range; AD8220TRMZ-EP-R7 is required for aerospace, medical, or harsh-environment deployment. |
Compared with AD8421ARMZ and INA128UA, the AD8220TRMZ-EP-R7 uniquely combines JFET-input ultra-low bias, rail-to-rail output on single 5 V, and AQEC-qualified extended temperature operation - making it the only option for battery-powered, high-reliability instrumentation in −55°C to +125°C environments.
Availability
AD8220TRMZ-EP-R7 is available at Aetrix Electronics and suitable for medical diagnostics, aerospace sensor systems, and precision industrial data acquisition requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD8220TRMZ-EP-R7 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
Analog Devices, Inc. is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design and manufacturing facilities worldwide.
The AD8220-EP product line delivers radiation-hardened, extended-temperature instrumentation amplifiers for defense, aerospace, and critical infrastructure applications where reliability under extreme conditions is non-negotiable.
FAQ
What is the maximum gain achievable with AD8220TRMZ-EP-R7?
The AD8220TRMZ-EP-R7 supports a gain range of 1 to 1000, set by a single external resistor (RG) using the formula G = 1 + 49.4 kΩ/RG. At G = 1000, the small-signal bandwidth reduces to 14 kHz, and gain error remains within ±0.8%. This wide gain range allows flexible configuration for both high-sensitivity (e.g., thermocouple) and high-speed (e.g., transient vibration) measurement tasks using the same AD8220TRMZ-EP-R7 device.
Does AD8220TRMZ-EP-R7 support true single-supply operation?
Yes, the AD8220TRMZ-EP-R7 operates from a single 4.5 V to 36 V supply, with rail-to-rail output swing and input voltage range extending to −VS − 0.1 V. When powered from +5 V/0 V, it delivers 0.15 V to 4.85 V output swing into 10 kΩ, enabling direct interfacing with 5 V ADCs without level-shifting circuitry - a key advantage confirmed in Table 2 of the AD8220-EP datasheet.
How does the REF pin function in AD8220TRMZ-EP-R7?
The REF pin on the AD8220TRMZ-EP-R7 provides a high-impedance (40 kΩ) input that directly offsets the output voltage with unity gain (1 ± 0.0001 V/V). Driving REF with a stable voltage (e.g., 2.5 V from a precision reference) shifts VOUT accordingly, simplifying calibration and eliminating the need for external summing amplifiers when interfacing with unipolar ADCs - a feature explicitly documented in Table 4 and Figure 4 of the datasheet.
What is the ESD robustness of AD8220TRMZ-EP-R7?
The AD8220TRMZ-EP-R7 features 7 kV Human Body Model (HBM) ESD protection on all pins, as verified in the Absolute Maximum Ratings table (Page 7). This level exceeds typical industrial handling requirements and eliminates the need for external TVS diodes in most PCB layouts, reducing BOM count and board area - a design benefit emphasized in the "Enhanced Product Features" section of the datasheet.
Is AD8220TRMZ-EP-R7 qualified for aerospace applications?
Yes, the AD8220TRMZ-EP-R7 is an Enhanced Product variant qualified to AQEC standards for defense and aerospace use. It features controlled manufacturing (single fab/test site), extended temperature operation (−55°C to +125°C), full qualification data on request, and product change notification - all explicitly stated in the "Enhanced Product Features" section (Page 1) and Ordering Guide (Page 11) of the AD8220-EP datasheet.
AD8220TRMZ-EP-R7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- J-FET
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 2V/µs
- Gain Bandwidth Product:
- -
- -3db Bandwidth:
- 1.5 MHz
- Current - Input Bias:
- -
- Voltage - Input Offset:
- -
- Current - Supply:
- 750µA
- Current - Output / Channel:
- -
- Voltage - Supply Span (Min):
- 4.5 V
- Voltage - Supply Span (Max):
- 36 V
- Operating Temperature:
- -55°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 8-MSOP
AD8220TRMZ-EP-R7 FAQ
1.How can I place an order for AD8220TRMZ-EP-R7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD8220TRMZ-EP-R7 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 AD8220TRMZ-EP-R7 reliable?
The price and inventory of AD8220TRMZ-EP-R7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD8220TRMZ-EP-R7 is usually 5 days.
3.What payment methods are accepted for AD8220TRMZ-EP-R7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD8220TRMZ-EP-R7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD8220TRMZ-EP-R7?
AD8220TRMZ-EP-R7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD8220TRMZ-EP-R7 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 AD8220TRMZ-EP-R7?
For technical support, including AD8220TRMZ-EP-R7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD8220TRMZ-EP-R7 requirements.
6.How does Aetrix verify that AD8220TRMZ-EP-R7 is sourced from the original manufacturer or authorized distributors?
All AD8220TRMZ-EP-R7 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 AD8220TRMZ-EP-R7 meets industry standards.
7.What is the process for return or replacement of AD8220TRMZ-EP-R7?
All AD8220TRMZ-EP-R7 units undergo pre-shipment inspection (PSI). If there is an issue with AD8220TRMZ-EP-R7, 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 AD8220TRMZ-EP-R7 part is unused and in its original packaging.
Return procedure for AD8220TRMZ-EP-R7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD8220TRMZ-EP-R7 Tags
-
LM358DT
STMicroelectronics
-
LM358DR
Texas Instruments
-
LM2904DR
Texas Instruments
-
LM358ADR
Texas Instruments
-
LM2904DGKR
Texas Instruments
-
LM324DR
Texas Instruments
-
MCP6006T-E/OT
Microchip Technology
-
MCP6006UT-E/OT
Microchip Technology
-
LM324PWR
Texas Instruments
-
LM2902PWR
Texas Instruments
-
LM2902DR
Texas Instruments
-
LM358P
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…
