Industrial AFEs & ADCs

Zero latency Delta Sigma ADC is a new concept of A/D converters with both SAR's high accuracy and Delta Sigma's high linearity.

AKM lines up A/D converters from 12-bit to 18-bit and Analog Front Ends from 12-bit to 16-bit mainly with 2 channels devices.

AKM provides optimal solutions that contribute to high precision, small size and high speed of customer’s system in a wide range of industrial applications such as a motor system and a measurement system.

ZDS-NS A/D Converters

ZDS-NS A/D Converter

AK925x

The AK925X series is a lineup of ZDS-NS (Zero latency Delta Sigma with Noise Suppression) A/D converter.
The AK925X suppresses high frequency noise in analog input signals by oversampling A/D conversion.
The AK925X series that is a different output format option is available too.
Please visit here for details.

The AK9255NK, the AK9256NK, the AK9255ANK and the AK9256ANK are pin compatible each other.

AFE with A/D Converter

ZDS AFE with A/D Converter

SAR AFE with A/D Converter

AK924X series

The AK924X series is a lineup of ZDS (Zero latency Delta Sigma) and SAR (Successive Approximation Register) analog front ends with A/D converter.

The AK924X has a programmable gain amplifier (PGA) and low pass filter.  Therefore, sensors in various signal ranges can be connected directly.  In addition, it has a transimpedance amplifier enabling to connect with current output sensors.

Single Function A/D Converter

ZDS A/D Converter,
SAR A/D Converter

AK923X series

The AK923X series is a lineup of single function ZDS (Zero latency Delta Sigma) and SAR (Successive Approximation Register) A/D converters.  They are low input capacitance devices that can be easily adopted to your system.  With a product that has 14-bit or more resolution, it is more difficult to derive the A/D converter characteristics.  Therefore, ZDS architecture is adopted for these products for a longer acquisition time.

The AK9232NK, the AK9233NK and the AK9234NK are pin compatible each other.
The AK9235NK is pin compatible with the AK9255NK, the AK9256NK, the AK9255ANK and the AK9256ANK.

ΔΣ Modulator

ΔΣ Modulator

AK922X series

The AK922X series is a line-up of single function Delta-sigma modulators.  The AK922X outputs 1-bit Pulse Density Modulation signal by oversampling A/D conversion.

High resolution and linearity can be achieved by demodulating low frequency signals by suppressing high frequency signals with a digital filter at the output stage of the AK922X.

Lineup

Industrial AFEs & ADCs

Part Number
Part
Status
Number of 
Channels
Resolution
[bit]
Speed
[MSPS]
Power Supply 
Voltage (MIN.)
[V]
Power Supply 
Voltage (TYP.)
[V]
Power Supply 
Voltage (MAX.)
[V]
Power Consumption
[mW]
Control 
Interface
Package Size
[mm(mm2)]
Other
Operating
Temperature
[℃]
Device
Package
Number
of Pins
AK9256ANK
MP
2
14
0.6

                                
3.3 / 3.3

                                
88
SPI
3 x 3 (9)

                                
-40 to 105
HWQFN
16
AK9240NK
MP
2
12
1

                                
5.0 / 3.0

                                
83
SPI
3×3 (9)

                                
-40 to 105
HWQFN
20
AK9233NK
MP
2
16
1.1
4.75 / 2.7 / 1.7
5.0 / 3.0 / 1.8
5.25 / 5.25 / 2.0
200
SPI
4×4 (16)

                                
-40 to 105
HWQFN
24
AK9255ANK
MP
2
16
0.54
3.0 /3.0
3.3 / 3.3
3.6 / 3.6
88
SPI
3x3 (9)

                                
-40 to 105
HWQFN
16
AK9223MK
MP
2
16
0.04
4.5 / 2.7
5.0 / 3.0
5.5 / 5.5
67.5
Serial
4.4×7.8 (50)

                                
-40 to 105
TSSOP
24
AK9255NK
MP
2
16
1
3.0 / 3.0
3.3 / 3.3
3.6 / 3.6
88
SPI
3x3 (9)

                                
-40 to 105
HWQFN
16
AK9235NK
MP
2
12
1.03
3.0 / 2.7
5.0 / 3.0
5.5 / 5.5
31
SPI
3x3 (9)

                                
-40 to 125
HWQFN
16
AK9234NK
MP
2
14
1.1
4.75 / 2.7 / 1.7
5.0 / 3.0 / 1.8
5.25 / 5.25 / 2.0
200
SPI
4 × 4 (16)

                                
-40 to 105
HWQFN
24
AK9256NK
MP
2
14
1.1
3.0 /3.0
3.3 / 3.3
3.6 / 3.6
88
SPI
3x3 (9)

                                
-40 to 105
HWQFN
16
AK9232NK
MP
2
18
1.1
4.75 / 2.7 / 1.7
5.0 / 3.0 / 1.8
5.25 / 5.25 / 2.0
200
SPI
4×4 (16)

                                
-40 to 105
HWQFN
24
AK9242NK
MP
2
16
1.1
4.2 / 2.7
5.0 / 3.0
5.5 / 5.5
505
SPI
4 × 4 (16)

                                
-40 to 105
HWQFN
24

[Note]

*TIA:  Trans Impedance Amplifier
*PGA:  Programmable Gain Amplifier
* Sample and product release dates may be subject to change without notice.
* Preliminary datasheet is subject to change without notice.