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AD7891 - ADI
Manufacturer:
ADI
ManyChip's Part#:
MC480099746
Datasheet:
Datasheet 3D Model
Description:
LC2MOS 8Channel, 12Bit High Speed Data Acquisition System
Stock Locations:
Availability:
264 pcs In Stock
MOQ:
1 pcs
Unit Price:
$ 0

Updated at 17/07/2025 10:30:15(UTC+8)

Certifications

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Description

Product Details
The AD7891 is an eight-channel 12-bit data acquisition system with a choice of either parallel or serial interface structure. The part contains an input multiplexer, an on-chip track/hold amplifier, a high speed 12-bit ADC, a +2.5 V reference and a high speed interface. The part operates from a single +5 V supply and accepts a variety of analog input ranges across two models, the AD7891-1 (±5 V and ±10 V) and the AD7891-2 (0 V to +2.5 V, 0 V to +5 V and ±2.5 V).
The AD7891 provides the option of either a parallel interface or serial interface structure determined by the MODE pin. The part has standard control inputs and fast data access times for both the serial and parallel interfaces which ensures easy interfacing to modern microprocessors, microcontrollers and digital signal processors.
In addition to the traditional dc accuracy specifications such as linearity, full-scale and offset errors, the part is also specified for dynamic performance parameters including harmonic distortion and signal-to-noise ratio.
Power dissipation in normal mode is 90 mW typical while in the standby mode this is reduced to 75 µW typ. The part is available in a 44-pin plastic quad flat-pack (PQFP) and a 44- lead plastic leaded chip carrier (PLCC).
### Features and Benefits
Fast 12-Bit ADC with 1.6 µs Conversion Time
8 Single-Ended Analog Input Channels
Overvoltage Protection on Each Channel
Selection of Input Ranges:
±5 V, ±10 V for AD7891-1
0 to +2.5 V, 0 to +5 V, ±2.5 V for AD7891-2
Parallel and Serial Interface
On-Chip Track/Hold Amplifier
On-Chip Reference
Single-Supply, Low Power Operation (100 mW Max)
Power-Down Mode (75 µW Typ)

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AD7891 Specifications

Attribute	Attribute Value

Datasheet	Datasheet
3D Model	3D Model
	Show
Product Lifecycle Status	Active

Order guide

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- Delivery date: usually 2 to 7 working days.
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- Carefully inspected and packed by ManyChip warehouse
- Vacuum packaging
- Anti-static packaging
- Shockproof foam
The terms here are for reference only, the actual terms are subject to the sales quotation.
- Please confirm product specifications when ordering.
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- Decapsulation control
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- Electrical testing
- Surface testing
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