Specifications
| Type | Description |
|---|---|
| Part Number | ADS7823 |
| Manufacturer | Texas Instruments |
| Product Type | ADC |
| Category | Signal Chain |
| Package / Case | MSOP-8 (DGK) |
| Resolution | 12 bits |
| Sampling Rate | 50 kHz max |
| Interface | I2C (Standard, Fast, High-Speed Modes) |
| Supply Voltage | 2.7 V to 5.0 V |
| Analog Input Range | 0 V to VREF |
| Conversion Time | 8 µs typ |
| Integral Linearity Error | ±1.0 LSB typ |
| No Missing Codes | 12 bits |
| SNR | 72 dB typ |
| THD | -82 dB typ |
| Data Format | Straight binary |
| Quiescent Current | 250 µA typ |
| Power Dissipation | 680 µW typ |
| Full Powerdown Current | 2 nA typ |
| Operating Temperature | -40 to +85 °C |
| Pin Count | 8 |
| Datasheet Status | request_only |
Product Overview
The ADS7823 is a 12-bit sampling analog-to-digital converter from Texas Instruments that uses a successive-approximation architecture. It converts analog inputs to straight-binary digital output through an I2C-compatible serial interface that supports Standard (100 kHz), Fast (400 kHz), and High-Speed (3.4 MHz) modes. The device operates from a single 2.7 V to 5.0 V supply and accepts a unipolar analog input range from 0 V to the external reference voltage VREF. Conversion time is 8 µs typical, enabling throughput rates up to 50 kHz in High-Speed Mode. The ADS7823 includes two address pins (A0 and A1) allowing four devices on the same I2C bus, with a fixed hardware address of 10010 binary. Power consumption scales with speed mode: 290 µW typical at 2.7 V in Standard Mode, rising to 680 µW in High-Speed Mode. A full powerdown mode reduces supply current to 2 nA typical. The device is specified for operation from -40 °C to +85 °C and is available in an MSOP-8 DGK package.
Key Features
- 12-bit successive-approximation ADC
- I2C serial interface with Standard, Fast, and High-Speed modes
- 50 kHz maximum throughput in High-Speed Mode
- 2.7 V to 5.0 V single-supply operation
- 8 µs typical conversion time
- Straight-binary digital output format
- A0 and A1 address pins for multi-device bus configuration
- Full powerdown mode with 2 nA typical current
- 72 dB typical SNR at 10 kHz input
- 82 dB typical spurious-free dynamic range
- -40 to +85 °C specified temperature range
- MSOP-8 DGK package
Typical Applications
- I2C-based data acquisition systems
- Embedded voltage measurement
- Portable instrumentation
- Sensor signal digitization
- Battery-powered measurement nodes
- Industrial process monitoring
- Low-power ADC conversion
Procurement Notes
When requesting a quote for ADS7823, buyers should confirm the manufacturer, package or case, required quantity, target date code, compliance documents, packing method, destination country and expected delivery schedule.
If alternatives are acceptable, buyers should share the approved vendor list, required electrical or optical limits, package constraints and qualification requirements. Any alternative part should be reviewed by the buyer's engineering team before production use.
For analog and signal-chain sourcing, supply voltage, bandwidth, accuracy, noise level, package, temperature grade, input/output configuration and qualification requirements should be verified before approval.
FAQ
What resolution does the ADS7823 provide?
The ADS7823 provides 12-bit resolution with no missing codes guaranteed across the specified supply range. Typical integral linearity error is ±1.0 LSB for the ADS7823E variant.
What I2C interface modes does the ADS7823 support?
The ADS7823 supports Standard Mode (100 kHz SCL), Fast Mode (400 kHz SCL), and High-Speed Mode (3.4 MHz SCL at 100 pF bus capacitance). Throughput scales with the selected I2C mode.
What is the maximum throughput of the ADS7823?
The maximum throughput is 50 kHz in High-Speed Mode with SCL at 3.4 MHz. In Fast Mode (400 kHz SCL) throughput is 8 kHz, and in Standard Mode (100 kHz SCL) throughput is 2 kHz.
What package is specified for the ADS7823?
The ADS7823 is available in an MSOP-8 package with package designator DGK. It has 8 pins including A0 and A1 address pins for configuring the I2C slave address.
What is the power consumption of the ADS7823 in different modes?
At 2.7 V, typical power dissipation is 290 µW in Standard Mode, 370 µW in Fast Mode, and 680 µW in High-Speed Mode. Full powerdown reduces current to 2 nA typical.
Can the ADS7823 be sourced through LDeepAI?
Yes, the ADS7823 is available for sourcing support through LDeepAI. Submit an RFQ through the product page for current pricing and availability information.
Technical Review & Sourcing Note
Prepared by LDeepAI Component Sourcing Team. Reviewed for RFQ, documentation and alternative sourcing use. Last updated: June 30, 2026.
This page is based on manufacturer datasheet information and LDeepAI sourcing review. Specifications should be verified against the official manufacturer datasheet before final procurement or design approval. Final electrical, optical and reliability approval should be confirmed by the buyer's engineering team.