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Texas Instruments ADS7830IPWRG4
- Part No.:
- ADS7830IPWRG4
- Manufacturer:
- Texas Instruments
- Category:
- Analog to Digital Converters (ADC)
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
ADS7830IPWRG4.pdf
- Description:
- IC ADC 8BIT SAR 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:2,796
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Product details
Overview
ADS7830IPWRG4 from Texas Instruments is an 8-bit, 8-channel SAR analog-to-digital converter with integrated 2.5V reference, I²C serial interface, and 4 differential / 8 single-ended input configuration. It operates from 2.7V to 5V, delivers ±0.5 LSB INL/DNL, supports up to 70 kSPS throughput in High-Speed I²C mode, and targets remote data acquisition and isolated transducer interfacing.
For engineers reviewing the ADS7830IPWRG4 datasheet, ADS7830IPWRG4 pinout, ADS7830IPWRG4 application, or ADS7830IPWRG4 equivalent, key selection considerations include its TSSOP-16 package, built-in 2.5V reference accuracy (±0.5% over –40°C to +125°C), I²C address configurability via A0/A1 pins, and power-down modes enabling <3 µA quiescent current in full shutdown.
Technical Context
The ADS7830IPWRG4 implements a capacitive redistribution successive approximation register (SAR) architecture with integrated sample-and-hold amplifier and asynchronous internal clock. Its conversion core remains powered off between conversions, minimizing idle current.
It supports all three I²C modes-Standard (100 kHz), Fast (400 kHz), and High-Speed (3.4 MHz)-with programmable slave address (10010xxR/W) and command-byte–controlled channel selection (C2–C0), differential/single-ended mode (SD), and power-down state (PD1/PD0).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 8-bit SAR with no missing codes - guarantees monotonic transfer function for reliable control loop feedback. |
| Sampling Rate | 70 kSPS max (High-Speed I²C mode) - enables real-time monitoring of fast-varying sensor signals like motor current or vibration. |
| INL / DNL | ±0.5 LSB - ensures accurate representation of analog inputs across full scale without code skips or compression. |
| Reference | Internal 2.5V ±0.5% (–40°C to +125°C) - eliminates external reference component count while maintaining voltage-supply monitoring accuracy. |
| Supply Range | 2.7V to 5.0V - supports direct connection to 3.3V microcontrollers and compatibility with 5V legacy systems. |
| Power Dissipation | 180 µW (Standard I²C mode) - enables battery operation for >1 year in low-duty-cycle remote sensing nodes. |
| Channel Count | 8 single-ended or 4 differential inputs - allows simultaneous monitoring of multiple sensors (e.g., temperature, pressure, voltage rails) on one IC. |
Pinout & Package
TSSOP-16 package (PW designation), 4.4 mm × 5.0 mm body, 0.65 mm pitch, exposed pad not electrically connected.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1–8 (CH0–CH7) | Analog input channels | Support configurable single-ended or differential pairing (e.g., CH0+/CH1–); COM pin defines common reference for differential measurements. |
| 9 (GND) | Analog ground | Separate AGND return path minimizes noise coupling into sensitive analog front-end during conversion. |
| 10 (REFIN/REFOUT) | Reference input/output | Provides 2.5V internal reference output or accepts external reference (0.05V to VDD); high-impedance input when internal ref is disabled. |
| 11 (COM) | Differential common | Serves as negative input reference for differential channel pairs; must be tied to system analog ground or sensor common. |
| 12–13 (A0, A1) | I²C slave address bits | Set hardware address (10010xxR/W); allow up to four ADS7830IPWRG4 devices on same I²C bus without address conflict. |
| 14 (SCL) | I²C serial clock | Open-drain input synchronized to master clock; supports Standard/Fast/High-Speed modes with defined timing margins per TI SBAS302C. |
| 15 (SDA) | I²C serial data | Open-drain bidirectional line; requires external pull-up; handles both command writes and conversion result reads. |
| 16 (+VDD) | Power supply | Single 2.7V–5.0V supply powers analog core, digital interface, and internal reference; no separate AVDD/DVDD required. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated 2.5V reference with 40 ppm/°C drift | Enables precision voltage monitoring without external reference IC or trimming, reducing BOM cost and layout area. |
| I²C address configuration via A0/A1 pins | Permits daisy-chaining up to four identical ADS7830IPWRG4 converters on one bus, simplifying multi-sensor node design. |
| Three power-down modes (PD1/PD0) | Allows dynamic trade-off between conversion readiness and ultra-low standby current (as low as 300 nA in full shutdown). |
| Channel-selectable differential or single-ended input | Improves noise immunity in industrial environments by rejecting common-mode interference on transducer signals. |
| Direct pin compatibility with ADS7828 | Enables drop-in upgrade path to higher-resolution (12-bit) variant where system-level accuracy requirements increase. |
Applications
| Voltage-Supply Monitoring | Isolated Data Acquisition |
|---|---|
|
Use Scenario: Real-time tracking of multiple DC rail voltages (e.g., 1.2V, 3.3V, 5V, 12V) in telecom power shelves or server PSUs. IC Role / Device Role / Timing Role: ADC front-end digitizing analog rail sense points; performs sequential 8-channel sampling at 10 kSPS in Fast I²C mode. Use Value: Internal 2.5V reference ensures stable scaling across temperature; ±0.5 LSB INL maintains ±12 mV absolute accuracy on 3.3V rail measurement. |
Use Scenario: Sensor signal conditioning in galvanically isolated industrial I/O modules using optocouplers or digital isolators. IC Role / Device Role / Timing Role: Local analog digitizer placed adjacent to field sensors; communicates digitized values across isolation barrier via I²C. Use Value: Low 180 µW active power enables placement near heat-sensitive sensors; TSSOP-16 footprint fits compact isolated PCB sections. |
| Transducer Interface | Battery-Operated Systems |
|
Use Scenario: Reading resistive temperature detectors (RTDs) or strain gauges in portable test equipment with 4-wire or 3-wire configurations. IC Role / Device Role / Timing Role: Configured in differential mode to reject lead-wire noise; uses COM pin as local sensor return. Use Value: 90 dB channel-to-channel isolation prevents crosstalk between adjacent RTD channels; 25 pF input capacitance minimizes settling time errors. |
Use Scenario: Multi-parameter environmental logging (temperature, humidity, light) in wireless sensor nodes powered by coin-cell batteries. IC Role / Device Role / Timing Role: Periodic wake-up ADC performing 1-shot conversion every 10 seconds; enters full power-down between samples. Use Value: 300 nA full shutdown current extends 220 mAh CR2032 battery life beyond 25 years in theoretical continuous operation. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar 8-bit, I²C ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADS7828IPWR | 12-bit resolution, same 8-channel I²C interface and TSSOP-16 package; shares identical pinout and command structure. | Required where higher precision (±1 LSB INL) and improved SNR (70 dB vs 49 dB) are needed for low-noise sensor signals. | Select ADS7828IPWR when system accuracy budget demands <0.1% full-scale error and resolution exceeds 8 bits. |
| MCP3221-AI/P | 12-bit, single-channel, I²C interface; SO-8 package; no internal reference; requires external 2.5V or 4.096V reference. | Suitable for space-constrained designs needing only one analog input but requiring higher resolution than ADS7830IPWRG4 offers. | Choose MCP3221-AI/P for minimal footprint and single-input applications where channel count is secondary to resolution and cost. |
Compared with ADS7830IPWRG4, ADS7828IPWR provides 4× resolution with identical interface and layout compatibility, while MCP3221-AI/P trades channel count and integrated reference for smaller size and lower unit cost in single-signal systems.
Availability
ADS7830IPWRG4 is available at Aetrix Electronics and suitable for voltage-supply monitoring, isolated data acquisition, and battery-operated systems requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for ADS7830IPWRG4 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
Texas Instruments is a global semiconductor leader specializing in analog, embedded processing, and connectivity technologies, with decades of expertise in precision data converters and industrial-grade ICs.
The ADS7830IPWRG4 belongs to TI's precision analog data acquisition portfolio, designed specifically for cost-sensitive, space-constrained applications requiring robust I²C-based multichannel digitization without external reference components.
FAQ
What is the maximum I²C clock frequency supported by the ADS7830IPWRG4?
The ADS7830IPWRG4 supports High-Speed I²C mode up to 3.4 MHz (with ≤100 pF bus capacitance) and 1.7 MHz (with ≤400 pF), enabling 70 kSPS throughput. In Fast Mode (400 kHz), it achieves 10 kSPS, and in Standard Mode (100 kHz), 2.5 kSPS. These rates are confirmed in TI SBAS302C Section 6.3 and Table 6.
Does the ADS7830IPWRG4 require an external reference voltage?
No - the ADS7830IPWRG4 includes a factory-trimmed 2.5V internal reference with ±0.5% accuracy over –40°C to +125°C and 40 ppm/°C drift. An external reference is optional and only required when using a 5V supply to achieve full-scale input range; otherwise, the internal reference suffices for 2.7V–3.6V operation.
How many analog input channels does the ADS7830IPWRG4 support, and how are they configured?
The ADS7830IPWRG4 supports eight analog input terminals (CH0–CH7) that can be configured as either eight single-ended inputs or four differential pairs (e.g., CH0+/CH1–). Configuration is controlled by the SD bit in the command byte, and the COM pin serves as the common reference for differential measurements.
What power-saving modes are available on the ADS7830IPWRG4?
The ADS7830IPWRG4 offers four programmable power-down states via PD1/PD0 bits: (0,0) disables conversion between samples; (0,1) turns off internal reference only; (1,0) disables ADC only; (1,1) enables both. Full shutdown draws ≤3 µA, and full power-down (SCL/SDA pulled HIGH) reduces current to 300–3000 nA.
Is the ADS7830IPWRG4 pin-compatible with other TI ADCs?
Yes - the ADS7830IPWRG4 is directly pin-compatible with the ADS7828IPWR (12-bit variant), sharing identical TSSOP-16 pinout, I²C interface behavior, command protocol, and power supply requirements. This allows hardware reuse and firmware migration paths without PCB redesign.
ADS7830IPWRG4 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Texas Instruments
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Discontinued at Digi-Key
- Number of Bits:
- 8
- Sampling Rate (Per Second):
- 70k
- Number of Inputs:
- 4, 8
- Input Type:
- Differential, Single Ended
- Data Interface:
- I2C
- Configuration:
- MUX-S/H-ADC
- Ratio - S/H:ADC:
- 1:1
- Number of A/D Converters:
- 1
- Architecture:
- SAR
- Reference Type:
- External, Internal
- Voltage - Supply, Analog:
- 2.7V ~ 3.6V, 5V
- Voltage - Supply, Digital:
- 2.7V ~ 3.6V, 5V
- Features:
- -
- Operating Temperature:
- -40°C ~ 85°C
- Supplier Device Package:
- 16-TSSOP
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
ADS7830IPWRG4 FAQ
1.How can I place an order for ADS7830IPWRG4 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADS7830IPWRG4 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 ADS7830IPWRG4 reliable?
The price and inventory of ADS7830IPWRG4 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADS7830IPWRG4 is usually 5 days.
3.What payment methods are accepted for ADS7830IPWRG4?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADS7830IPWRG4 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADS7830IPWRG4?
ADS7830IPWRG4 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADS7830IPWRG4 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 ADS7830IPWRG4?
For technical support, including ADS7830IPWRG4 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADS7830IPWRG4 requirements.
6.How does Aetrix verify that ADS7830IPWRG4 is sourced from the original manufacturer or authorized distributors?
All ADS7830IPWRG4 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 ADS7830IPWRG4 meets industry standards.
7.What is the process for return or replacement of ADS7830IPWRG4?
All ADS7830IPWRG4 units undergo pre-shipment inspection (PSI). If there is an issue with ADS7830IPWRG4, 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 ADS7830IPWRG4 part is unused and in its original packaging.
Return procedure for ADS7830IPWRG4:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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