MAX128BCAI+ by Analog Devices

Multirange, +5V, 12-Bit DAS with 2-Wire Serial Interface

Status: Active
Series: MAX128, MAX128A, MAX128B
RoHS: Unknown
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The MAX127/MAX128 are multirange, 12-bit data acquisition systems (DAS) that require only a single +5V supply for operation, yet accept signals at their analog inputs that may span above the power-supply rail and below ground. These systems provide eight analog input channels that are independently software programmable for a variety of ranges: ±10V, ±5V, 0 to +10V, 0 to +5V for the MAX127; and ±VREF, ±VREF/2, 0 to +VREF, 0 to +VREF/2 for the MAX128. This range switching increases the effective dynamic range to 14 bits and provides the flexibility to interface 4–20mA, ±12V, and ±15V-powered sensors directly to a single +5V system. In addition, these converters are fault protected to ±16.5V; a fault condition on any channel will not affect the conversion result of the selected channel. Other features include a 5MHz bandwidth track/hold, an 8ksps throughput rate, and the option of an internal 4.096V or external reference. The MAX127/MAX128 feature a 2-wire, I2C-compatible serial interface that allows communication among multiple devices using SDA and SCL lines. A hardware shutdown input (SHDN) and two software-programmable power-down modes (standby and full power-down) are provided for low-current shutdown between conversions. In standby mode, the reference buffer remains active, eliminating startup delays. The MAX127/MAX128 are available in 24-pin narrow PDIP or space-saving 28-pin SSOP packages.

Prices starting from US$19.48


Distributor Starting From Stock
Logo for Newark Electronics Newark Electronics US$23.13
20
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Logo for element14 element14 US$25.56
20
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Features

12-Bit Resolution, 1/2 LSB Linearity
+5V Single-Supply Operation
I2C-Compatible, 2-Wire Serial Interface
Four Software-Selectable Input Ranges MAX127: 0 to +10V, 0 to +5V, ±10V, ±5V MAX128: 0 to +VREF, 0 to +VREF/2, ±VREF, ±VREF/2
MAX127: 0 to +10V, 0 to +5V, ±10V, ±5V
MAX128: 0 to +VREF, 0 to +VREF/2, ±VREF, ±VREF/2
8 Analog Input Channels
8ksps Sampling Rate
±16.5V Overvoltage-Tolerant Input Multiplexer
Internal 4.096V or External Reference
Two Power-Down Modes
24-Pin Narrow PDIP or 28-Pin SSOP Packages

Specifications

Resolution (bits) (ADC) 12
# Input Channels 8
Conv. Rate (ksps) (max) 8
Data Bus I2C
ADC Architecture SAR
Diff/S.E. Input S.E. Only
Internal VREF (V) (nominal) 4.096
External VREF (V) (min) 2.4
External VREF (V) (max) 4.18
Unipolar VIN (V) (max) 4.096
Bipolar VIN (±V) (max) 2.048
INL (±LSB) 1
Package/Pins PDIP/24SSOP/28
BudgetaryPrice (See Notes) 12.88


MAX128BCAI+ Data & Signal Conversion by Analog Devices

ADC 8-CH SAR 12BIT 8KSPS SSOP-28

Status: Unknown
Series: Octal 12-Bit SAR ADCs
RoHS: Unknown
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Specifications

Resolution (Bits) 12bit
Sampling Rate 8kSPS
Input Channel Type Single Ended
Data Interface I2C
Supply Voltage Type Single
Supply Voltage Min 4.75V
Supply Voltage Max 5.25V
ADC / DAC Case Style SSOP
No. of Pins 28Pins
Operating Temperature Min 0°C
Operating Temperature Max 70°C
Product Range Octal 12-Bit SAR ADCs
Automotive Qualification Standard -
RoHS Phthalates Compliant To Be Advised
MSL MSL 1 - Unlimited
SVHC No SVHC (15-Jan-2018)

Alternative Descriptions

ADC, 8-CH, SAR, 12BIT, 8KSPS, SSOP-28 | Farnell Contract
Adc, 8-Ch, Sar, 12Bit, 8Ksps, Ssop-28 | Newark Electronics

Frequently Asked Questions

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Is the MAX128BCAI+ RoHS compliant?

This part has not been flagged as RoHS Compliant.

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Authorised distributors including Farnell Contract, Newark Electronics and element14 have stock available or on a lead time for MAX128BCAI+ .

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