My Inquiry
My Account
Analog Devices Inc. AD7810YRMZ
- Part No.:
- AD7810YRMZ
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD7810YRMZ.pdf
- Description:
- IC ADC 10BIT SAR 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,683
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD7810YRMZ from Analog Devices is a 10-bit successive approximation ADC with 2.3 µs conversion time, pseudo-differential analog input (VIN+, VIN–), and microcontroller-compatible 3-wire serial interface (CONVST, SCLK, DOUT). It operates from a single 2.7 V to 5.5 V supply, features inherent track-and-hold functionality, and is specified over –40°C to +105°C for battery-powered portable instrumentation.
For engineers reviewing the AD7810YRMZ datasheet, AD7810YRMZ pinout, AD7810YRMZ application, or AD7810YRMZ equivalent, key selection considerations include guaranteed 10-bit no-missing-codes performance, automatic power-down mode reducing consumption to 270 µW at 10 kSPS, VREF range of 1.2 V to VDD, and microSOIC-8 package compatibility with space-constrained embedded sensor interfaces.
Technical Context
The AD7810YRMZ implements a charge redistribution DAC architecture with internal oscillator, supporting both Mode 1 (continuous high-speed operation, 2.3 µs conversion, up to ~350 kSPS) and Mode 2 (automatic power-down between conversions, 1.5 µs wake-up + 2.3 µs conversion). Its pseudo-differential input accepts 0 V to VREF analog signals while rejecting common-mode offsets applied to VIN–.
Timing is controlled via external SCLK and edge-triggered CONVST: falling edge initiates conversion and places track-and-hold in hold mode; rising edge enables the serial port and resets the bit counter. The 10-bit serial output is clocked out MSB-first on DOUT, with data valid within 5 ns of SCLK rising edge (VDD = 5 V).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - guarantees monotonic transfer function and no missing codes across full temperature range. |
| Conversion Time | 2.3 µs - defines minimum inter-conversion interval in high-speed Mode 1; enables >350 kSPS throughput with fast microcontroller interface. |
| Supply Range | 2.7 V to 5.5 V - supports direct connection to Li-ion, 3.3 V, or 5 V system rails without LDO regulation. |
| Power Dissipation | 270 µW at 10 kSPS - achieved via automatic power-down; reduces thermal load and extends battery life in portable measurement devices. |
| Reference Range | 1.2 V to VDD - allows VREF = VDD for simplified single-supply design or external precision reference for improved accuracy. |
| Input Leakage | ±1 µA max - minimizes error in high-impedance sensor interfaces (e.g., thermistor networks, pH electrodes). |
| SNR | 58 dB min at 30 kHz input - sufficient for 9.3 ENOB in DC/low-frequency acquisition applications like data loggers. |
Pinout & Package
AD7810YRMZ is housed in an 8-lead microSOIC package (RM-8), 3 mm × 3 mm, 0.65 mm pitch, with exposed pad for thermal enhancement (θJA = 206°C/W).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - CONVST | Convert Start / Serial Enable | Falling edge initiates conversion and holds input; rising edge enables serial port and resets bit counter - serves dual role as chip select in multi-device buses. |
| 2 - VIN+ | Pseudo-Differential Analog Input (+) | Primary signal input; sampling capacitor acquires voltage relative to VIN–; must remain stable within ±0.5 LSB during conversion. |
| 3 - VIN– | Pseudo-Differential Analog Input (–) | Common-mode reference node; enables offset cancellation (e.g., sensor bias removal); variation >½ LSB corrupts conversion result. |
| 4 - GND | Analog/Digital Ground | Single ground plane required; separates AGND/DGND internally but shares pin - demands low-impedance layout to minimize noise coupling. |
| 5 - VREF | Reference Voltage Input | Defines full-scale range (0 V to VREF); accepts 1.2 V–VDD; internal buffer eliminates need for external op-amp in most cases. |
| 6 - DOUT | Serial Data Output | 3-state CMOS output; drives SPI/QSPI-compatible inputs; enters high-Z after 10th SCLK falling edge - enables bus sharing. |
| 7 - SCLK | Serial Clock Input | Asynchronous master clock; timing-critical path with 25 ns min pulse width; tolerates discontinuous clocking for low-power polling. |
| 8 - VDD | Positive Supply | 2.7–5.5 V single supply powers analog core, digital logic, and internal oscillator; decoupling (0.1 µF + 10 µF) mandatory at pin. |
Key Features
| Feature | Design Value |
|---|---|
| Inherent Track-and-Hold | Eliminates external sample-and-hold circuitry; acquisition time ≤100 ns ensures accurate sampling of fast step inputs without external buffering. |
| Automatic Power-Down | Reduces IDD to 1 µA max between conversions; enables ultra-low average power (27 µW at 1 kSPS) ideal for intermittent sensor wake-up systems. |
| Pseudo-Differential Input | Rejects common-mode offsets on VIN– (e.g., amplifier bias, thermocouple cold-junction voltage) while preserving full 10-bit dynamic range on VIN+. |
| Microcontroller-Compatible Serial Interface | 3-wire (CONVST/SCLK/DOUT), no glue logic needed for PIC, QSPI, or SPI hosts; DOUT high-Z state supports multi-drop configurations. |
| Wide Temperature Range | –40°C to +105°C operation validated per specification - suitable for automotive cabin sensors, industrial motor controllers, and outdoor IoT nodes. |
Applications
| Battery-Powered Portable DMM | Industrial Sensor Signal Conditioning |
|---|---|
Use Scenario: Handheld digital multimeter acquiring DC voltage, current, and resistance with <100 ms update rate and 8-hour battery life. IC Role / Device Role / Timing Role: Primary ADC digitizing buffered analog front-end outputs; triggered by button press; uses Mode 2 power-down to minimize quiescent current between readings. Use Value: 270 µW average power at 10 kSPS enables extended runtime; 10-bit resolution meets Class II DMM accuracy requirements per IEC 61010. | Use Scenario: 4–20 mA loop-powered pressure transmitter with local display and HART communication. IC Role / Device Role / Timing Role: Isolated analog-to-digital converter for sensor bridge output; synchronized to microcontroller's low-power sleep/wake cycle. Use Value: Pseudo-differential input rejects common-mode noise from 24 V loop supply; VREF = VDD simplifies BOM by eliminating external reference IC. |
| Medical Patient Monitor Front-End | Automotive Cabin Environment Sensor Hub |
Use Scenario: Compact wearable ECG/SpO₂ module requiring low-noise, low-power biopotential acquisition. IC Role / Device Role / Timing Role: ADC for conditioned lead-II ECG signal; operates in Mode 1 at 1 kSPS with external anti-alias filter; powered from coin-cell or energy harvester. Use Value: 58 dB SNR supports ≥9-bit effective resolution for diagnostic-grade waveform fidelity; –40°C to +105°C rating covers clinical and transport environments. | Use Scenario: Integrated HVAC and air quality sensor node in vehicle dashboard with temperature, humidity, CO₂, and VOC sensing. IC Role / Device Role / Timing Role: Shared ADC for multiplexed analog sensor outputs; sequenced by microcontroller with automatic power-down between channel reads. Use Value: MicroSOIC-8 footprint saves PCB area in tight dashboard modules; 2.7 V operation ensures functionality during cold-cranking (battery dip to 6 V). |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 10-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 12-bit resolution, 2.5 µs conversion, SPI-only interface (no CONVST enable), 2.7–5.25 V supply | Higher resolution suits precision weight scales; lacks pseudo-differential input and automatic power-down control | Select when 12-bit linearity is mandatory and system already uses dedicated SPI bus without shared CONVST lines |
| MCP3201-I/P | 12-bit, 1.1 µs conversion, SPI interface, 2.7–5.5 V, SOIC-8 only, no power-down mode | Lower latency benefits real-time control loops; higher THD (–60 dB) limits audio/sensor fidelity vs. AD7810YRMZ's –64 dB | Choose for cost-sensitive industrial PLC I/O where speed outweighs power and noise performance |
Compared with ADS7822U and MCP3201-I/P, AD7810YRMZ uniquely combines pseudo-differential input architecture, CONVST-gated serial enable, and guaranteed automatic power-down - making it optimal for battery-constrained, noise-sensitive, multi-sensor embedded systems requiring deterministic low-power operation.
Availability
AD7810YRMZ is available at Aetrix Electronics and suitable for battery-powered portable instrumentation, industrial sensor signal conditioning, and automotive cabin environment monitoring requiring stable component supply and long-term lifecycle support.
Supply support for AD7810YRMZ 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 semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
The AD7810YRMZ belongs to Analog Devices' legacy high-speed, low-power SAR ADC product line, designed specifically for space- and energy-constrained embedded systems requiring reliable 10-bit conversion without external support components.
FAQ
What is the guaranteed operating temperature range for AD7810YRMZ?
The AD7810YRMZ is fully specified from –40°C to +105°C. All electrical parameters-including relative accuracy (±1 LSB), SNR (58 dB min), and power dissipation-are tested and guaranteed across this extended industrial temperature range, making AD7810YRMZ suitable for under-hood automotive, factory-floor, and outdoor deployment scenarios.
Does AD7810YRMZ require an external reference voltage?
No, AD7810YRMZ does not require an external reference. Its VREF input accepts 1.2 V to VDD, allowing direct connection to VDD for a 0 V to VDD input range. This eliminates the need for a separate reference IC in many single-supply applications, simplifying design and reducing BOM cost-confirmed in the AD7810YRMZ datasheet's "Reference Inputs" section.
How does the automatic power-down mode work in AD7810YRMZ?
In AD7810YRMZ Mode 2, the device automatically powers down at the end of each conversion when CONVST remains low. A rising edge on CONVST wakes it up (1.5 µs power-up time), and the subsequent falling edge starts conversion. This reduces average power to 270 µW at 10 kSPS - a key feature documented in the "Power vs. Throughput Rate" graph and timing diagrams of the AD7810YRMZ datasheet.
Can AD7810YRMZ interface directly with an SPI host without level-shifting?
Yes, AD7810YRMZ interfaces directly with standard 3.3 V or 5 V SPI hosts. Its logic inputs (CONVST, SCLK) accept VIH ≥ 2.0 V and VIL ≤ 0.4 V; outputs (DOUT) drive VOH ≥ 2.4 V (ISOURCE = 200 µA) and VOL ≤ 0.4 V (ISINK = 200 µA) - matching SPI voltage thresholds without level shifters, as verified in the "Logic Inputs" and "Logic Outputs" specifications tables for AD7810YRMZ.
What is the maximum recommended source impedance for the analog input of AD7810YRMZ?
The AD7810YRMZ analog input has an internal 125 Ω switch resistance and 3.5 pF sampling capacitor. For ≤½ LSB error, source impedance should be ≤2 kΩ - derived from the acquisition time equation tCHARGE = 7.6 × (RSOURCE + 125 Ω) × 3.5 pF in the AD7810YRMZ datasheet. Higher impedances require external buffering to maintain DC accuracy and THD performance.
AD7810YRMZ Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Active
- Number of Bits:
- 10
- Sampling Rate (Per Second):
- 350k
- Number of Inputs:
- 1
- Input Type:
- Pseudo-Differential
- Data Interface:
- SPI
- Configuration:
- S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External
- Voltage - Supply, Analog:
- 2.7V ~ 5.25V
- Voltage - Supply, Digital:
- 2.7V ~ 5.25V
- Features:
- -
- Operating Temperature:
- -40°C ~ 105°C
- Supplier Device Package:
- 8-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7810YRMZ FAQ
1.How can I place an order for AD7810YRMZ through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7810YRMZ 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 AD7810YRMZ reliable?
The price and inventory of AD7810YRMZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7810YRMZ is usually 5 days.
3.What payment methods are accepted for AD7810YRMZ?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7810YRMZ transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7810YRMZ?
AD7810YRMZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7810YRMZ 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 AD7810YRMZ?
For technical support, including AD7810YRMZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7810YRMZ requirements.
6.How does Aetrix verify that AD7810YRMZ is sourced from the original manufacturer or authorized distributors?
All AD7810YRMZ 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 AD7810YRMZ meets industry standards.
7.What is the process for return or replacement of AD7810YRMZ?
All AD7810YRMZ units undergo pre-shipment inspection (PSI). If there is an issue with AD7810YRMZ, 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 AD7810YRMZ part is unused and in its original packaging.
Return procedure for AD7810YRMZ:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD7810YRMZ Tags
-
ADC081C021CIMKX/NOPB
Texas Instruments
-
MCP3021A5T-E/OT
Microchip Technology
-
TLA2024IRUGR
Texas Instruments
-
MCP3221A5T-E/OT
Microchip Technology
-
MCP3221A5T-I/OT
Microchip Technology
-
MCP3221A4T-E/OT
Microchip Technology
-
MCP3221A6T-E/OT
Microchip Technology
-
MCP3221A0T-E/OT
Microchip Technology
-
MCP3221A1T-E/OT
Microchip Technology
-
ADC121S021CIMFX/NOPB
Texas Instruments
-
MCP3001-I/MS
Microchip Technology
-
MCP3001-I/SN
Microchip Technology
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…
