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ADS8689IPWR
16-Bit, 100-kSPS, 1-Ch SAR ADC with programmable (±12/±10/±6/±5/±2.5V) input ranges on +5V supply 16-TSSOP -40 to 125
ADS8689IPWR
16-Bit, 100-kSPS, 1-Ch SAR ADC with programmable (±12/±10/±6/±5/±2.5V) input ranges on +5V supply 16-TSSOP -40 to 125
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Manufacturer Part # : ADS8689IPWR
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Package/Case: TSSOP-16
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Brand: Texas Instruments
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Product Categories : Analog to Digital Converters (ADC)
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Service & Packaging
Service & Packaging
About After Sales Service
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ADS8689IPWR DataSheet
Current price plan is under preparation. Please contact our customer service team for the latest pricing information. Thank you for your understanding and support!
Details
for the ADS8689The ADS8681, ADS8685, and ADS8689belong to a family of integrated data acquisition system based on a successiveapproximation (SAR) analog-to-digital converter (ADC). The devices feature ahigh-speed, high-precision SAR ADC, integrated analog front-end (AFE) input drivercircuit, overvoltage protection circuit up to ±20 V, and an on-chip 4.096-Vreference with extremely low temperature drift.The devices operate on a single 5-Vanalog supply, but support true bipolar input ranges of ±12.288 V, ±6.144 V,±10.24 V, ±5.12 V, and ±2.56 V, as well as unipolar input ranges of0 V to 12.288 V, 0 V to 10.24 V, 0 V to 6.144 V, and0 V to 5.12 V. The gain and offset errors are accurately trimmed within thespecified values for each input range to ensure high dc precision. The input rangeselection is done by software programming of the device internal registers. Thedevices offer a high resistive input impedance (≥ 1 MΩ) irrespective of the selectedinput range.The multiSPI digital interface isbackward-compatible to the traditional SPI protocol. Additionally, configurablefeatures simplify interface to a wide range of host controllers.
Key Features
- 16-bit ADC with integrated analog front-end
- High speed:
- ADS8681: 1 MSPS
- ADS8685: 500 kSPS
- ADS8689: 100 kSPS
- Software programmable input ranges:
- Bipolar ranges: ±12.288V, ±10.24 V, ±6.144 V, ±5.12 V, and ±2.56 V
- Unipolar ranges: 0V–12.288 V, 0 V–10.24 V, 0 V–6.144 V, and 0 V–5.12 V
- 5-V analog supply: 1.65-V to 5-V I/O supply
- Constant resistive input impedance ≥ 1 MΩ
- Input overvoltage protection: Up to ±20 V
- On-chip, 4.096-V reference with low drift
- Excellent performance:
- DNL: ±0.4 LSB; INL: ±0.5LSB
- SNR: 92 dB; THD: –107dB
- ALARM → high, low threshold
- multiSPI™ interface withdaisy-chain
- Extended industrial temperature range: –40°C to +125°C
Specifications
The followings are basic parameters of the part selected concerning the characteristics of the part and categories it belongs to.
| Pbfree Code | Yes | Rohs Code | Yes |
| Part Life Cycle Code | Active | Reach Compliance Code | compliant |
| ECCN Code | EAR99 | Date Of Intro | 2016-12-17 |
| Analog Input Voltage-Max | 12.288 V | Analog Input Voltage-Min | -12.288 V |
| Conversion Time-Max | 5 µs | Converter Type | ADC, SUCCESSIVE APPROXIMATION |
| JESD-30 Code | R-PDSO-G16 | JESD-609 Code | e4 |
| Length | 5 mm | Linearity Error-Max (EL) | 0.0018% |
| Moisture Sensitivity Level | 3 | Number of Analog In Channels | 1 |
| Number of Bits | 16 | Number of Functions | 1 |
| Number of Terminals | 16 | Operating Temperature-Max | 125 °C |
| Operating Temperature-Min | -40 °C | Output Bit Code | BINARY |
| Output Format ! | SERIAL | Package Body Material | PLASTIC/EPOXY |
| Package Code | TSSOP | Package Shape | RECTANGULAR |
| Package Style | SMALL OUTLINE, THIN PROFILE, SHRINK PITCH | Peak Reflow Temperature (Cel) | 260 |
| Sample Rate | 0.1 MHz | Sample and Hold / Track and Hold | SAMPLE |
| Seated Height-Max | 1.2 mm | Supply Current-Max | 10.5 mA |
| Supply Voltage-Min | 1.65 V | Supply Voltage-Nom | 5 V |
| Surface Mount ! | YES | Temperature Grade ! | AUTOMOTIVE |
| Terminal Finish | Nickel/Palladium/Gold (Ni/Pd/Au) | Terminal Form ! | GULL WING |
| Terminal Pitch ! | 0.65 mm | Terminal Position | DUAL |
| Time@Peak Reflow Temperature-Max (s) | 30 | Width | 4.4 mm |
Datasheet PDF
Datasheets record the features, absolute maximum ratings, applications and more of the device, which benefit a lot as an overall guide to the specific application of the part.
FAQs
What is ADS8689IPWR?
The ADS8689IPWR is a high-performance, 16-bit, single-channel, analog-to-digital converter (ADC) manufactured by Texas Instruments. It is designed for applications requiring high-resolution data acquisition and precise signal conversion, such as industrial automation, test and measurement, and medical instrumentation.
How Does ADS8689IPWR Work?
The ADS8689IPWR operates by converting analog input voltage signals into digital output data with 16-bit resolution. It utilizes a successive approximation register (SAR) architecture to achieve high accuracy and speed in converting signals. The ADC features a wide input voltage range, low distortion, and high signal-to-noise ratio for reliable performance in various applications.
How Many Pins does ADS8689IPWR have and What are the Functions of the Pinout Configuration?
The ADS8689IPWR comes in a 16-pin TSSOP (Thin Shrink Small Outline Package) package. The pinout configuration includes:
- AVDD, DVDD: Analog and digital power supply pins.
- AGND, DGND: Analog and digital ground pins.
- INP, INM: Differential analog input pins.
- REFP, REFN: Reference voltage input pins.
- CLK, CS, DIN, DOUT/DRDY: Serial interface control pins.
- BUF: Buffer enable pin.
- RST: Reset pin for ADC initialization.
What are the Pros and Cons of ADS8689IPWR?
Pros:
- High Resolution: Offers 16-bit resolution for precise signal conversion.
- Fast Conversion Speed: Utilizes SAR architecture for high-speed data acquisition.
- Low Distortion: Provides low distortion and high signal fidelity.
- Wide Input Range: Supports a wide input voltage range for flexibility in signal acquisition.
- Low Power Consumption: Operates with low power for energy-efficient applications.
Cons:
- Complex Interface: Requires careful consideration of timing and control signals for proper operation.
- External Components: May need additional components for signal conditioning or filtering in certain applications.
Are There Any Equivalents/Alternatives to ADS8689IPWR for Recommendation?
- The ADS8674 from Texas Instruments is a similar 16-bit ADC with multiple channels.
- Alternatives to the ADS8689IPWR include the LTC2379-18 from Analog Devices and the MAX11156 from Maxim Integrated.
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