My Inquiry
My Account
Analog Devices Inc. AD7468BRM-REEL7
- Part No.:
- AD7468BRM-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD7468BRM-REEL7.pdf
- Description:
- IC ADC 8BIT 1.6V LP 8-MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:3,000
Please send an inquiry. Send us your inquiry, and we will respond immediately.
Product details
Overview
AD7468BRM-REEL7 from Analog Devices is an 8-bit, micropower successive approximation analog-to-digital converter (ADC) operating from a single 1.6 V to 3.6 V supply. It delivers 320 kSPS throughput, 0.2 mW power dissipation at 1.8 V/100 kSPS, and 0 to VDD input range, targeting ultra-low-power sensor digitization in battery-powered medical and remote data acquisition systems.
For engineers reviewing the AD7468BRM-REEL7 datasheet, AD7468BRM-REEL7 pinout, AD7468BRM-REEL7 application, or AD7468BRM-REEL7 equivalent, key selection criteria include its 8-bit resolution with ±0.2 LSB INL, SPI/QSPI/MICROWIRE-compatible serial interface, 2.94 μs conversion time, automatic power-down mode drawing 8 nA typical, and SOT-23-6 package compatibility.
Technical Context
The AD7468BRM-REEL7 implements a standard successive approximation register (SAR) architecture with internal track-and-hold, no pipeline delay, and reference derived from VDD-enabling full-scale analog input range of 0 V to VDD. Conversion is initiated on the falling edge of CS, and data is clocked out MSB-first with four leading zeros.
It supports flexible serial clock management: conversion time scales linearly with SCLK frequency (10 cycles required), and automatic power-down activates after each conversion. Timing parameters are guaranteed across 1.6 V–3.6 V supply and −40°C to +85°C operation, with acquisition time ≤640 ns at VDD ≥1.8 V.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit - Provides 256 discrete output codes for cost-sensitive, low-precision sensing applications. |
| Throughput Rate | 320 kSPS maximum - Enables high-speed sampling of transient signals such as pulse waveforms or motor feedback. |
| Supply Voltage Range | 1.6 V to 3.6 V - Supports direct interfacing with Li-ion, coin-cell, and low-voltage logic domains without level-shifting. |
| Power Dissipation (Normal Mode) | 0.2 mW max at 1.8 V/100 kSPS - Delivers micropower operation critical for multi-year battery life in portable devices. |
| INL / DNL | ±0.2 LSB max each - Ensures monotonicity and guarantees no missing codes across full 8-bit range. |
| Conversion Time | 2.94 μs max (10 SCLK cycles @ 3.4 MHz) - Defines minimum inter-sample interval and system latency budget. |
| Power-Down Current | 8 nA typical - Reduces quiescent consumption by >4 orders of magnitude versus active mode. |
Pinout & Package
AD7468BRM-REEL7 is housed in a 6-lead SOT-23 package (JEDEC MO-178AA), footprint-compatible with industry-standard passive and active components. The package supports reflow soldering and offers thermal impedance θJA = 229.6°C/W.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| CS | Chip Select | Active-low control initiating conversion and framing serial data; sampled on falling edge to trigger sample-and-hold. |
| VDD | Power Supply | Single 1.6–3.6 V supply powering analog core, digital logic, and internal reference-no external reference required. |
| GND | Analog Ground | Common return path for analog circuitry; must be isolated from noisy digital ground to preserve SNR. |
| VIN | Analog Input | Single-ended input accepting 0 V to VDD range; 20 pF input capacitance requires careful driver impedance matching. |
| SDATA | Serial Data Output | Three-state CMOS output delivering 8-bit result MSB-first with four leading zeros; timing referenced to SCLK falling edge. |
| SCLK | Serial Clock | Input clock driving both data transfer and internal ADC conversion timing; 10–3.4 MHz range enables throughput scaling. |
Key Features
| Feature | Design Value |
|---|---|
| No pipeline delay | Enables deterministic, zero-latency conversion timing essential for closed-loop control and real-time triggering. |
| VDD-referenced internal reference | Eliminates need for external reference IC or resistor divider, reducing BOM count and layout area in space-constrained designs. |
| Automatic power-down | Reduces average current draw without software intervention-ideal for duty-cycled sensor nodes with intermittent sampling. |
| SPI/QSPI/MICROWIRE/DSP compatibility | Interoperates with common microcontroller peripherals without protocol translation or glue logic. |
| Guaranteed no missing codes | Ensures monotonic transfer function across full temperature and supply range-critical for position and threshold detection. |
Applications
| Portable ECG Monitor | Wireless Sensor Node |
|---|---|
Use Scenario: Digitizing low-amplitude bio-potential signals (0.5–5 mV) from dry-electrode chest leads in a handheld cardiac screening device. IC Role / Device Role / Timing Role: Primary ADC capturing analog front-end output with 8-bit resolution sufficient for beat detection and rhythm classification. Use Value: 0.2 mW power at 100 kSPS extends single-CR2032 battery life beyond 18 months in intermittent-use mode. |
Use Scenario: Sampling temperature, humidity, and ambient light in a LoRaWAN-enabled environmental sensor deployed in remote field locations. IC Role / Device Role / Timing Role: Low-power signal digitizer interfacing directly to MCU's SPI peripheral during scheduled wake-up intervals. Use Value: 8 nA power-down current minimizes leakage losses during 99.9% sleep time, enabling 10+ year deployment without battery replacement. |
| Implantable Drug Pump Feedback | Isolated Industrial Current Sensing |
Use Scenario: Monitoring microamp-level current through piezoelectric actuator drivers to verify precise dose delivery in Class III implantable devices. IC Role / Device Role / Timing Role: High-accuracy, low-drift ADC acquiring analog sense voltage with minimal self-heating impact on adjacent analog circuitry. Use Value: ±0.2 LSB INL ensures sub-0.1% gain error over lifetime, meeting ISO 14708-1 functional safety requirements for therapeutic accuracy. |
Use Scenario: Digitizing shunt voltage in a galvanically isolated 4–20 mA loop transmitter using optocoupler-based signal transfer. IC Role / Device Role / Timing Role: Isolated-side ADC converting conditioned analog signal before serial transmission across barrier. Use Value: 1.6 V minimum supply allows direct use of isolated DC-DC output rails, avoiding extra LDO and improving efficiency. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit SAR ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7822U | 8-bit, 200 kSPS, 2.7–5.25 V supply, 1.25 mW at 3 V - higher power, wider VDD range, no auto power-down. | Requires external reference; suited for industrial systems with stable 3.3 V/5 V rails and less stringent battery constraints. | Select when legacy 5 V compatibility or higher SNR (70 dB vs. 49 dB) is prioritized over micropower operation. |
| MCP3002-I/P | 10-bit, 200 kSPS, 2.7–5.5 V supply, 1.5 mW at 3 V - higher resolution but no sub-2 V operation or 8 nA shutdown. | Uses external reference; better for precision measurement where 10-bit linearity outweighs energy savings. | Choose when resolution >8 bits is mandatory and system supply exceeds 2.7 V, accepting higher quiescent current. |
Compared with ADS7822U and MCP3002-I/P, AD7468BRM-REEL7 uniquely combines sub-2 V operation, 8 nA shutdown, and 320 kSPS throughput in a 6-lead SOT-23-making it the only option for ultra-low-voltage, ultra-low-duty-cycle embedded sensing.
Availability
AD7468BRM-REEL7 is available at Aetrix Electronics and suitable for battery-powered systems, medical instruments, remote data acquisition, and isolated data acquisition requiring stable component supply across long production lifecycles.
Supply support for AD7468BRM-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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA, with design and manufacturing expertise spanning over 50 years.
The AD7466/AD7467/AD7468 family was engineered specifically for micropower, single-supply, serial-interface ADC applications in space- and energy-constrained environments-emphasizing low voltage operation, minimal external components, and robust timing behavior.
FAQ
What is the maximum sampling rate supported by the AD7468BRM-REEL7?
The AD7468BRM-REEL7 supports a maximum throughput rate of 320 kSPS, achieved with a 3.4 MHz serial clock and 10 SCLK cycles per conversion. At lower SCLK frequencies, the throughput scales linearly-for example, 1.7 MHz SCLK yields ~160 kSPS. This rate is specified across the full −40°C to +85°C temperature range and 1.6 V to 3.6 V supply.
Does the AD7468BRM-REEL7 require an external reference voltage?
No, the AD7468BRM-REEL7 uses an internal reference derived from VDD, enabling a full-scale analog input range of 0 V to VDD. This eliminates the need for external reference components, simplifying design and reducing bill-of-materials cost. The reference tracking ensures consistent scale factor across supply variations within the 1.6 V–3.6 V operating range.
How does the power-down mode function on the AD7468BRM-REEL7?
The AD7468BRM-REEL7 enters automatic power-down mode immediately after completing a conversion and asserting SDATA high-impedance state. In this mode, supply current drops to 0.1 μA maximum (8 nA typical), regardless of SCLK activity. Power-down is exited automatically on the next CS falling edge, with full acquisition achieved within 640 ns at VDD ≥1.8 V.
What package type is used for the AD7468BRM-REEL7?
The AD7468BRM-REEL7 is supplied in a 6-lead SOT-23 package (JEDEC MO-178AA), with pinout identical to AD7466/AD7467 variants in the same family. This compact, surface-mount package measures 2.9 mm × 1.6 mm × 1.1 mm and supports standard reflow soldering profiles, including lead-free assembly.
Is the AD7468BRM-REEL7 compatible with common microcontroller SPI peripherals?
Yes, the AD7468BRM-REEL7 features a standard SPI-compatible serial interface-supporting QSPI™, MICROWIRE™, and DSP protocols. It operates in SPI Mode 0 (CPOL = 0, CPHA = 0), with data valid on the falling edge of SCLK and CS acting as frame synchronization. No configuration registers or initialization sequence are required.
AD7468BRM-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 200k
- Number of Inputs:
- -
- Input Type:
- -
- Data Interface:
- SPI, DSP
- Configuration:
- -
- Ratio - S/H:ADC:
- -
- Number of A/D Converters:
- 1
- Architecture:
- -
- Reference Type:
- -
- Voltage - Supply, Analog:
- -
- Voltage - Supply, Digital:
- -
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 8-MSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
AD7468BRM-REEL7 FAQ
1.How can I place an order for AD7468BRM-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7468BRM-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 AD7468BRM-REEL7 reliable?
The price and inventory of AD7468BRM-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7468BRM-REEL7 is usually 5 days.
3.What payment methods are accepted for AD7468BRM-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7468BRM-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7468BRM-REEL7?
AD7468BRM-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7468BRM-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 AD7468BRM-REEL7?
For technical support, including AD7468BRM-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7468BRM-REEL7 requirements.
6.How does Aetrix verify that AD7468BRM-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD7468BRM-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 AD7468BRM-REEL7 meets industry standards.
7.What is the process for return or replacement of AD7468BRM-REEL7?
All AD7468BRM-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7468BRM-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 AD7468BRM-REEL7 part is unused and in its original packaging.
Return procedure for AD7468BRM-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
AD7468BRM-REEL7 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…
