AD7691BRMZ - Brand New Analog Devices Analog To Digital Converters (ADCs)
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Description
The AD7691BRMZ is an Analog To Digital Converter (ADC), which is a 4-part component encompassing 18-bit, charge redistribution, successive approximation, and versatile serial interface port. It operates on a single power supply between 2.3 V and 5 V and contains a low-power, high-speed, and 18-bit sampling ADC with no missing codes. It is designed to sample the voltage difference between the IN+ and IN− pins with the reference voltage, REF, which can be applied externally, up to the supply voltage. It is commonly used in battery-powered equipment, data acquisitions, seismic data acquisition systems, DVMs, instrumentation, and medical instruments.
Specifications and features
- 18-bit resolution with no missing codes
- Throughput: 250 kSPS
- INL: ±0.75 LSB typ, ±1.5 LSB max (±6 ppm of FSR)
- Dynamic range: 102 dB typ @ 250 kSPS
- Oversampled dynamic range: 125 dB @1 kSPS
- Noise-free code resolution: 20 bits @ 1 kSPS
- Effective resolution: 22.7 bits @ 1 kSPS
- SINAD: 101.5 dB typ @ 1 kHz
- THD: −125 dB typ @ 1 kHz
- True differential analog input range: ±VREF
- 0 V to VREF with VREF up to VDD on both inputs
- No pipeline delay
- Single-supply 2.3 V to 5 V operation with
- 1.8 V/2.5 V/3 V/5 V logic interface
- Serial interface SPI®/QSPI™/MICROWIRE™/DSP compatible
- Daisy-chain multiple ADCs and busy indicator
- Power dissipation: 5 mW @ 5 V/250 kSPS, 50 μW @ 5 V/1 kSPS, standby current: 1 nA
- 10-lead package: MSOP (MSOP-8 size) and 3 mm × 3 mm QFN1 (LFCSP) (SOT-23 size)
- Pin-for-pin compatible with the18-bit AD7690 and 16-bit AD7693, AD7688, and AD7687
Application Scenarios
The AD7691BRMZ is specifically designed to be used in battery-powered equipment, which requires a minimal amount of power usage. This component can be used in data acquisitions, seismic data acquisition systems, DVMs, instrumentation, and medical instruments.
Comparison
Advantages- Low power usage: The component consumes only 5 mW at 5 V/250 kSPS, and standby current is 1 nA.
- Pin-for-pin compatible: AD7691BRMZ is pin-for-pin compatible with similar 18-bit AD7690 and 16-bit AD7693, AD7688, and AD7687, so no changes are necessary.
- No pipeline delay: This component has no pipeline delay; thus, no additional power is consumed.
- Multiple serial interfaces: It has a versatile serial interface port that supports SPI®, QSPI™, MICROWIRE™, and DSP for the user's convenience.
- High speed: It contains a low-power, high-speed, and 18-bit sampling ADC with no missing codes and can operate up to 250 kSPS.
Disadvantages- The maximum voltage that can be applied to the reference voltage (REF) is limited to the supply voltage, VDD.
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Datasheet
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Shopping guide
Delivery period:
- - Will ship out in 2-3 days
- - DHL Express: 3-7 business days
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Popular parts of the same kind
- Datasheet: Download AD7691BRMZ
- Chipdatas Part: CD93-AD7691BRMZ
- Warehouse: China, Hong Kong
- Dispatch: Within 24 hours
- Free Shipping: Yes
- Prority Shipping: Yes, 3-5 days
- Last Updated: 2024/09/28 23:00 +0800
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- Full Refund if you don't receive your order
- Full or Partial Refund , If the item is not as described
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The fee is charged according to the rule of PayPal.
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