Features
- 22-Bit Resolution with No Missing Code
- 0.0007% Integral Non-Linearity (Typ)
- 20mV to ±2.5V Full Scale Input Ranges
- Internal PGIA with Gains of 1 to 128
- Serial Data I/O Interface, SPI Compatible
- Differential Analog and Reference Inputs
- Internal or System Calibration
- 120dB Rejection of 60/50Hz Line Noise
- Settling Time of 4 Conversions (Max) for a Step Input
- Pb-Free Plus Anneal Available (RoHS Compliant)
HI7190 Functional Diagram
Description
The Intersil HI7190 is a monolithic instrumentation, sigma delta A/D converter which operates from ±5V supplies. Both the signal and reference inputs are fully differential for maximum flexibility and performance. An internal Programmable Gain Instrumentation Amplifier (PGIA) provides input gains from 1 to 128 eliminating the need for external pre-amplifiers. The on-demand converter autocalibrate function is capable of removing offset and gain errors existing in external and internal circuitry. The on-board user programmable digital filter provides over 120dB of 60/50Hz noise rejection and allows fine tuning of resolution and conversion speed over a wide dynamic range. The HI7190 and HI7191 are functionally the same device, but the HI7190 has tighter linearity specifications. The HI7190 contains a serial I/O port and is compatible with most synchronous transfer formats including both the Motorola 6805/11 series SPI and Intel 8051 series SSR protocols. A sophisticated set of commands gives the user control over calibration, PGIA gain, device selection, standby mode, and several other features. The On-chip Calibration Registers allow the user to read and write calibration data.
Applications
- Process Control and Measurement
- Industrial Weight Scales
- Part Counting Scales
- Laboratory Instrumentation
- Seismic Monitoring
- Magnetic Field Monitoring
| Part Number | Status | Samples | Stock | RoHS | Package | Budgetary Price (USD) | Lead Count (#) | Carrier Type | Moisture Sensitivity Level (MSL) | Pitch (mm) | Pkg. Dimensions (mm) | Pb (Lead) Free | Pb Free Category | Temp. Range (°C) | Country of Assembly | Country of Wafer Fabrication |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| HI7190IBZ | Last Time Buy | Available | In Stock | RoHS:EN | SOICW | 1ku | $53.06 | 20# | Tube | 3 | 1.3mm | 12.9 x 7.5 x 0.00 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C | PHILIPPINES, MALAYSIA | USA |
| HI7190IBZ-T | Last Time Buy | Available | Out of Stock | RoHS:EN | SOICW | 1ku | $53.06 | 20# | Reel | 3 | 1.3mm | 12.9 x 7.5 x 0.00 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C | PHILIPPINES, MALAYSIA | USA |
| HI7190IPZ | Obsolete | N/A | In Stock | Contact | PDIP | 20# | Tube | Not Applicable | 2.5mm | 26.2 x 6.7 x 3.94 | Yes | Pb-Free 100% Matte Tin Plate w/Anneal-e3 | -40 to +85°C |
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- Product Change NoticePDF 98 KB PCN12094 Dec 19, 2012
- Product Change NoticePDF 86 KB PCN12086 Oct 24, 2012
- Application NotePDF 503 KB an9675 Aug 13, 1999AI-generated Summary: Effective Number of Bits (ENOB) depends critically on precise coherence in A/D sampling, with small frequency shifts significantly impacting accuracy. Unwrapping reconstructs coherently sampled sine waves, while windowing controls spectral leakage by shaping the acquisition window. Resampling and interpolation adjust sample sets to avoid leakage in FFT analysis. Different window functions balance side lobe levels and bandwidth, affecting spectral resolution and leakage reduction.
- Application NotePDF 1.08 MB an002 Nov 19, 1998AI-generated Summary: Data acquisition and conversion involve quantization, where the smallest resolvable analog difference (quantum) depends on the full scale range and resolution. Quantization introduces an irreducible error called quantizing error or noise. Aperture time, the conversion time uncertainty, causes amplitude errors when signals change during conversion. Sample-hold circuits reduce aperture time by storing sampled signals. The Sampling Theorem states that sampling frequency must be at least twice the highest signal frequency to avoid distortion from frequency folding or aliasing. Natural binary code is commonly used for digital representation in converters, with the most and least significant bits defining the code's resolution and value.
- Application NotePDF 262 KB an9601 Aug 24, 1998AI-generated Summary: The document outlines important disclaimers and usage guidelines for semiconductor products. It emphasizes user responsibility for product design and safety, disclaims liability for damages from misuse, and clarifies that no intellectual property rights are granted. Products are categorized into “Standard” and “High Quality” grades with specific application scopes. Users must comply with environmental laws and export controls. Renesas disallows unauthorized reproduction and modification of its products and documents.
- Application NotePDF 353 KB an9527 Aug 24, 1998AI-generated Summary: The document explains how to interface the HI7190 A/D converter with microcontrollers 8X51 and 68HC11. It details configuring serial ports, setting control registers, and managing data transfer protocols including SPI. The 8X51 acts as clock master with LSB-first data transfer, while the 68HC11 uses the HI7190 as clock master with MSB-first transfer. Code examples demonstrate initialization, polling DRDY signals, and reading 24-bit data streams.
- Application NotePDF 281 KB an9532 Aug 22, 1998AI-generated Summary: The document provides a multiplexing circuit design using the HI7190 device, illustrating control sequences and circuit connections. It includes a detailed disclaimer outlining Renesas Electronics' liability limitations, product quality classifications, usage restrictions, safety responsibilities, and compliance with laws and regulations. Contact information for Renesas Electronics sales offices worldwide is also provided.
- Application NotePDF 508 KB an9510 Aug 19, 1998AI-generated Summary: The document explains fundamental analog circuit concepts for digital designers, focusing on superposition, Thevenin equivalent circuits, and feedback principles. It details the operation and assumptions of inverting and non-inverting op amps, differential amplifiers, and the use of T networks in feedback paths. The text highlights the importance of feedback in controlling closed-loop gain and stability, and distinguishes between voltage and current feedback op amps, especially in high-frequency applications like video amplifiers.
- Application NotePDF 287 KB an9705 Feb 21, 1997AI-generated Summary: Coherent sampling requires the ratio of signal frequency to sampling frequency to be a rational number, expressed as ko/N. When this condition is not met, frequency smearing occurs across bins. Data Acquisition Systems (DAS) can mitigate this by windowing, fixing sampling frequency and tuning input frequency, or fixing input frequency and tuning sampling frequency. The latter two methods are practical for most systems. Pseudo-code illustrates the frequency response for non-integer ko values.
- DocumentPDF 255 KB tb348 Aug 07, 1998
Recommended Documents (1)
Datasheets (1)
Manuals & Guides (1)
- Application NotePDF 503 KB an9675 Aug 13, 1999AI-generated Summary: Effective Number of Bits (ENOB) depends critically on precise coherence in A/D sampling, with small frequency shifts significantly impacting accuracy. Unwrapping reconstructs coherently sampled sine waves, while windowing controls spectral leakage by shaping the acquisition window. Resampling and interpolation adjust sample sets to avoid leakage in FFT analysis. Different window functions balance side lobe levels and bandwidth, affecting spectral resolution and leakage reduction.
- Application NotePDF 1.08 MB an002 Nov 19, 1998AI-generated Summary: Data acquisition and conversion involve quantization, where the smallest resolvable analog difference (quantum) depends on the full scale range and resolution. Quantization introduces an irreducible error called quantizing error or noise. Aperture time, the conversion time uncertainty, causes amplitude errors when signals change during conversion. Sample-hold circuits reduce aperture time by storing sampled signals. The Sampling Theorem states that sampling frequency must be at least twice the highest signal frequency to avoid distortion from frequency folding or aliasing. Natural binary code is commonly used for digital representation in converters, with the most and least significant bits defining the code's resolution and value.
- Application NotePDF 262 KB an9601 Aug 24, 1998AI-generated Summary: The document outlines important disclaimers and usage guidelines for semiconductor products. It emphasizes user responsibility for product design and safety, disclaims liability for damages from misuse, and clarifies that no intellectual property rights are granted. Products are categorized into “Standard” and “High Quality” grades with specific application scopes. Users must comply with environmental laws and export controls. Renesas disallows unauthorized reproduction and modification of its products and documents.
- Application NotePDF 353 KB an9527 Aug 24, 1998AI-generated Summary: The document explains how to interface the HI7190 A/D converter with microcontrollers 8X51 and 68HC11. It details configuring serial ports, setting control registers, and managing data transfer protocols including SPI. The 8X51 acts as clock master with LSB-first data transfer, while the 68HC11 uses the HI7190 as clock master with MSB-first transfer. Code examples demonstrate initialization, polling DRDY signals, and reading 24-bit data streams.
- Application NotePDF 281 KB an9532 Aug 22, 1998AI-generated Summary: The document provides a multiplexing circuit design using the HI7190 device, illustrating control sequences and circuit connections. It includes a detailed disclaimer outlining Renesas Electronics' liability limitations, product quality classifications, usage restrictions, safety responsibilities, and compliance with laws and regulations. Contact information for Renesas Electronics sales offices worldwide is also provided.View More (7)
Application Notes & White Papers (7)
- Product Change NoticePDF 98 KB PCN12094 Dec 19, 2012
- Product Change NoticePDF 86 KB PCN12086 Oct 24, 2012
Product Notices (PCN, EOL, etc) (3)
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- DocumentPDF 255 KB tb348 Aug 07, 1998
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