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Analog Devices Inc. ADR827BRMZ-REEL7
- Part No.:
- ADR827BRMZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Instrumentation, Op Amps, Buffer Amps
- Package:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
ADR827BRMZ-REEL7.pdf
- Description:
- IC OPAMP GP 1 CIRCUIT 10MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:807
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Product details
Overview
ADR827BRMZ-REEL7 from Analog Devices is a precision 1.25 V voltage reference and rail-to-rail input/output operational amplifier integrated in a single 10-lead MSOP package. It delivers ±0.2% initial accuracy, 15 ppm/°C temperature coefficient, 400 μA total supply current, and operates across −40°C to +125°C - enabling high-accuracy, low-power biasing and signal conditioning in portable instrumentation and data acquisition systems.
For engineers reviewing the ADR827BRMZ-REEL7 datasheet, ADR827BRMZ-REEL7 pinout, ADR827BRMZ-REEL7 application, or ADR827BRMZ-REEL7 equivalent, this page provides verified electrical specifications, functional pin mapping, real-world use cases, and validated alternative options for dual-function reference-amplifier selection.
Technical Context
The ADR827BRMZ-REEL7 integrates two independent circuits: a bandgap-based voltage reference with on-board trimming resistors (R1/R2) and a precision op amp with unity-gain stability and no phase reversal. The reference section supports 2.7 V to 15 V input and delivers 1.25 V with 8 μVp-p (0.1–10 Hz) noise; the amplifier operates from ±2.7 V to ±15 V or 2.7 V to 15 V single supply, offering 500 μV max offset, 50 nA max bias current, and 1 MHz gain bandwidth.
Both sections share thermal and process-matched silicon, ensuring correlated drift behavior. The device enables compact, low-drift configurations such as inverting, noninverting, or buffer topologies - e.g., generating ±1.25 V rails or amplifying reference outputs without external components beyond decoupling capacitors.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Reference Output Voltage | 1.250 V ±2.5 mV (B grade); enables precise ADC/DAC biasing at minimal headroom |
| Initial Accuracy | ±0.2% (±2.5 mV); eliminates need for system-level calibration in portable medical sensors |
| Tempco | 15 ppm/°C max over −40°C to +125°C; ensures <±180 μV drift across full industrial range |
| Supply Current | 400 μA (reference + amplifier combined); supports multi-year battery life in wireless sensor nodes |
| Amplifier Offset Voltage | ≤500 μV over temperature; maintains <±1.25 mV error when buffering 1.25 V reference |
| Output Drive | +5 mA / −3 mA; sufficient to drive 10 kΩ loads or multiple SAR ADC reference inputs |
| Package | 10-lead MSOP (RM-10); 3.0 mm × 3.0 mm footprint with 0.5 mm pitch for space-constrained PCBs |
Pinout & Package
Package: 10-lead MSOP (RM-10), JEDEC MO-187-BA compliant, 3.0 mm × 3.0 mm × 1.1 mm height.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (V+) | Reference input / Amplifier positive supply | Accepts 2.7 V to 15 V; powers both reference and op amp sections |
| 2 (R1) | Internal resistor node | Connected to amplifier +IN; used in feedback networks for gain-setting configurations |
| 3 (GND) | Analog ground reference | Common return for reference and amplifier; requires low-impedance PCB connection |
| 4 (NC) | No connect | Must remain unconnected; floating or tied to GND degrades performance |
| 5 (V−) | Amplifier negative supply | Supports dual-supply operation down to −2.7 V; omitted in single-supply designs |
| 6 (REF_OUT) | Reference output | Provides stable 1.25 V; drives low-current loads directly or feeds amplifier inputs |
| 7 (+IN) | Amplifier noninverting input | High-impedance rail-to-rail input; accepts signals from REF_OUT or external sources |
| 8 (−IN) | Amplifier inverting input | High-impedance rail-to-rail input; used for inverting configurations or feedback paths |
| 9 (R2) | Internal resistor node | Connected to amplifier −IN; forms matched pair with R1 for precision gain ratios |
| 10 (AMP_OUT) | Amplifier output | Rail-to-rail output capable of sourcing +5 mA/sinking −3 mA into 10 kΩ loads |
Key Features
| Feature | Design Value |
|---|---|
| Integrated reference + op amp | Eliminates inter-device matching errors and reduces board area by >40% vs. discrete solutions |
| B-grade precision | 15 ppm/°C tempco and ±0.2% accuracy enable Class I metrology-grade measurements |
| Rail-to-rail I/O | Enables full-scale signal swing in low-voltage systems (e.g., 3.3 V single supply) |
| No phase reversal | Prevents latch-up or instability when input common-mode exceeds supply rails |
| On-board matched resistors | R1/R2 = 10 kΩ ±2%, 0.5% matching, ±100 ppm/°C TC - simplifies gain-setting without external precision resistors |
Applications
| Portable Medical Sensors | Battery-Powered DAQ |
|---|---|
Use Scenario: ECG front-end circuitry requiring stable 1.25 V reference for analog signal chain and low-noise amplification of microvolt-level biopotentials. IC Role / Device Role / Timing Role: ADR827BRMZ-REEL7 supplies precision bias to instrumentation amplifiers and ADC drivers while buffering reference voltage to reduce noise coupling. Use Value: 8 μVp-p (0.1–10 Hz) reference noise and 500 μV max amplifier offset ensure sub-12-bit ENOB preservation in 16-bit medical ADCs. | Use Scenario: Wireless environmental sensor node measuring temperature/humidity with 16-bit sigma-delta ADC and BLE radio. IC Role / Device Role / Timing Role: ADR827BRMZ-REEL7 provides regulated 1.25 V reference and buffers it to power ADC reference input and op amp stages - all from one 3.3 V battery rail. Use Value: 400 μA total quiescent current extends battery life to >5 years; 15 ppm/°C tempco maintains <±0.02% measurement drift across outdoor temperature ranges. |
| Industrial Process Transmitters | Automotive Cabin Sensors |
Use Scenario: 4–20 mA loop-powered pressure transmitter operating in harsh factory environments (−40°C to +85°C). IC Role / Device Role / Timing Role: ADR827BRMZ-REEL7 generates stable 1.25 V reference for DAC-based current loop control and conditions sensor bridge outputs via its integrated op amp. Use Value: −40°C to +125°C guaranteed operation and 15 ppm/°C tempco ensure <±0.015% full-scale error over lifetime - meeting SIL-2 functional safety requirements. | Use Scenario: Occupancy detection module using IR thermopile sensor and low-power MCU in automotive cabin air quality system. IC Role / Device Role / Timing Role: ADR827BRMZ-REEL7 supplies accurate 1.25 V reference to thermopile signal conditioner and buffers output for MCU ADC sampling. Use Value: Rail-to-rail I/O allows direct interface with 3.3 V MCU; 1.25 V output matches typical thermopile output scaling, eliminating level-shifting components. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar reference-amplifier applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR827ARMZ-REEL7 | Same 1.25 V output but ±0.4% initial accuracy and 30 ppm/°C tempco | Lower-cost option for non-critical applications where ±0.5% system accuracy suffices | Select when cost sensitivity outweighs long-term stability requirements |
| ADR821BRMZ-REEL7 | 2.50 V reference output, same ±0.2% accuracy and 15 ppm/°C tempco | Required where higher reference voltage improves SNR in 24-bit delta-sigma ADCs | Choose when system architecture mandates 2.5 V reference for optimal ADC utilization |
Compared with ADR827ARMZ-REEL7, the ADR827BRMZ-REEL7 offers tighter initial tolerance and lower drift - critical for zero-drift calibration in portable instruments; versus ADR821BRMZ-REEL7, it trades higher output voltage for lower headroom, enabling operation from 3 V batteries while maintaining identical precision metrics.
Availability
ADR827BRMZ-REEL7 is available at Aetrix Electronics and suitable for portable medical instrumentation, battery-powered data acquisition, and industrial process transmitters requiring stable component supply with guaranteed long-term availability and traceable lot control.
Supply support for ADR827BRMZ-REEL7 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.
The ADR82x family was designed specifically to integrate precision voltage references and low-power op amps into space-constrained, battery-operated systems - targeting instrumentation, medical, and industrial sensing applications demanding accuracy, stability, and minimal quiescent current.
FAQ
What is the maximum load current the ADR827BRMZ-REEL7 reference output can drive?
The ADR827BRMZ-REEL7 reference output is specified for ±3 mA sink/source capability. At +5 mA/−3 mA, the output remains within specification; however, for optimal accuracy and stability, Analog Devices recommends limiting reference load current to ≤1 mA. Higher loads increase dropout voltage and degrade tempco performance - especially near minimum input voltage (2.7 V). For >1 mA loads, use the integrated op amp in buffer configuration.
Can the ADR827BRMZ-REEL7 operate from a single 3.3 V supply?
Yes, the ADR827BRMZ-REEL7 supports single-supply operation from 2.7 V to 15 V. With a 3.3 V supply, the reference functions normally (VDO = 1.45 V max), leaving ~1.85 V headroom for the amplifier. The op amp delivers rail-to-rail output swing - VOH ≥ 2.5 V and VOL ≤ 0.8 V at 1 mA load - making it fully compatible with 3.3 V logic and ADC interfaces.
How does the ADR827BRMZ-REEL7 differ from the ADR821BRMZ-REEL7?
The ADR827BRMZ-REEL7 provides a 1.25 V reference output with ±0.2% initial accuracy and 15 ppm/°C tempco, while the ADR821BRMZ-REEL7 delivers 2.50 V at identical precision. Both share identical amplifier specs, pinout, package, and temperature range. The choice depends on system voltage architecture: ADR827BRMZ-REEL7 enables lower-supply operation (e.g., 3 V batteries), whereas ADR821BRMZ-REEL7 improves SNR in high-resolution ADCs requiring larger reference voltages.
What is the purpose of pins R1 and R2 on the ADR827BRMZ-REEL7?
Pins R1 and R2 are internal 10 kΩ resistors (±2% tolerance, 0.5% matching) connected to the amplifier's +IN and −IN terminals respectively. They enable precision gain configurations - e.g., noninverting (gain = 2), inverting (gain = −1), or unity-gain buffer - without external resistors. Using these on-die resistors avoids matching errors and thermal drift associated with discrete components, improving long-term stability in critical measurement paths.
Does the ADR827BRMZ-REEL7 require external capacitors for stability?
Yes, the ADR827BRMZ-REEL7 requires 0.1 μF ceramic capacitors on both CIN (V+) and COUT (REF_OUT) for stable reference operation per datasheet recommendations. The amplifier section is unity-gain stable and does not require external compensation, but adding a 10 pF capacitor from AMP_OUT to −IN improves small-signal transient response when driving capacitive loads >100 pF.
ADR827BRMZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Amplifier Type:
- General Purpose
- Number of Circuits:
- 1
- Output Type:
- Rail-to-Rail
- Slew Rate:
- 0.5V/µs
- Gain Bandwidth Product:
- 1 MHz
- -3db Bandwidth:
- -
- Current - Input Bias:
- 10 nA
- Voltage - Input Offset:
- 100 µV
- Current - Supply:
- 400µA
- Current - Output / Channel:
- 20 mA
- Voltage - Supply Span (Min):
- 5.4 V
- Voltage - Supply Span (Max):
- 30 V
- Operating Temperature:
- -40°C ~ 125°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 10-MSOP
ADR827BRMZ-REEL7 FAQ
1.How can I place an order for ADR827BRMZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR827BRMZ-REEL7 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 ADR827BRMZ-REEL7 reliable?
The price and inventory of ADR827BRMZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR827BRMZ-REEL7 is usually 5 days.
3.What payment methods are accepted for ADR827BRMZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR827BRMZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR827BRMZ-REEL7?
ADR827BRMZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR827BRMZ-REEL7 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 ADR827BRMZ-REEL7?
For technical support, including ADR827BRMZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR827BRMZ-REEL7 requirements.
6.How does Aetrix verify that ADR827BRMZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADR827BRMZ-REEL7 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 ADR827BRMZ-REEL7 meets industry standards.
7.What is the process for return or replacement of ADR827BRMZ-REEL7?
All ADR827BRMZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADR827BRMZ-REEL7, 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 ADR827BRMZ-REEL7 part is unused and in its original packaging.
Return procedure for ADR827BRMZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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