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【AMS AS89010】是ams Sensors Germany GmbH推出的一款高性能16位4通道模拟-to-数字转换器（ADC），特别适用于处理如光敏二极管（RGB/XYZ颜色加一个补偿通道用于补偿寄生电流或温度转换）或其他电流信号输出传感器的信号。该器件在设计上兼顾了高精度和灵活性，适用于对性能要求严苛的应用。 **主要特性** 1. **四通道转换**：AS89010能够同时转换4个传感器信号，包括但不限于RGB/XYZ颜色传感器，以及一个用于补偿的空白通道。 2. **可配置增益和积分时间**：通过设置不同的增益和积分时间，该ADC能提供极宽的动态范围，从1到2.68E+08。 3. **高分辨率**：内部20位转换精度，通过分频器将内部20位转换为16位输出，实现了高达20fA/LSB的敏感度。 4. **多种工作模式**：支持连续、命令触发和外部同步（由起始和结束信号控制）测量模式，适应不同应用需求。 5. **外部控制**：可以选择外部控制积分时间和参考电流（增益），增强了系统灵活性。 6. **高线性与无交叉干扰**：放大电路具有高线性，且在各个通道之间无交叉干扰。 7. **高精度**：无需额外校准源，就能实现高绝对精度。 8. **内置参考源**：高可靠性内部参考源生成，确保测量稳定性。 9. **负偏移考虑**：可以测量负极性的电流，扩展了应用范围。 10. **积分时间测量**：不仅能够转换信号，还能测量积分时间。 11. **电源和温度独立响应**：在不同电源电压和环境温度下，响应保持稳定。 12. **抗干扰性强**：对外部50 Hz/60 Hz干扰不敏感，保证了测量的准确性。 13. **高速I²C接口**：16位/400 kHz的I²C接口，支持可编程的从设备地址，简化了系统集成。 14. **低功耗**：在活动模式、电源下降模式和待机模式下，电流消耗极低，有利于节能设计。 **产品规格** - **封装**：SSOP16 - **订单号**：305030004 - **状态**：初步请注意，该数据手册中的信息可能随时间变更，因此在实际应用中，务必确认使用的是最新版本，并咨询ams Sensors Germany销售代表获取详细信息和可用性确认。完整的法律通知可在文档的最后一页找到。 ams AS89010 ADC凭借其高精度、高灵活性和低功耗特性，是各种需要精确电流信号测量和转换应用的理想选择，例如在光传感、环境光检测、色彩分析、医疗设备和工业自动化等领域。

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www.ams.com

high

performance

needs great

design.

Coverpage: AS89010 Datasheet

Please be patient while we transfer this adapted former

MAZeT document to the latest ams design.

⚖ Production data information is current as of publication date. Products conform to specifications per the terms of ams Sensors Germany GmbH. The information

in this document is subject of change without notice, please confirm that this is the latest version. Please check with a ams Sensors Germany sales representative

for availability and further information. Full legal notices can be found on the final page.

ams Sensors Germany

GmbH

db12348e

V3.1

1 – 2017

-07-06

DATASHEET

AS89010

16 bit 4-channel analog-to-digital converter (ADC) with I

C control/output

SSOP16

Order No.: 305030004

Status: preliminary

FEATURES

▪ Conversion of 4 sensor signals of photodiodes

(e.g. RGB/XYZ color plus one blank channel for

compensation of parasitic currents or tempera-

ture conversion) or other sensors with current

signal output

▪ Configurable conversion gain and integration

time supports a very high dynamic range of

1 – 2.68E+08

▪ Up to 16 bit (internal 20 bit) signal resolution

by achievable sensitivity up to 20 fA/LSB –

scaling (by a divider) the internal 20 bit on

16 bit output

▪ Adjustable operation modes like continuous, by

command and externally synchronized (by

given start and start/end signal) measurement

▪ Option: external control of integration time and

reference current (gain)

▪ High linearity of amplifying, no cross talking

▪ High absolute accuracy without additional

sources

▪ High reliability internal reference source gener-

ation

▪ Consideration of negative offset

▪ Measurement of current for both polarities

▪ Measurement of integration time

▪ Supply and temperature independent response

▪ Insensitive to 50 Hz/60 Hz external disturb-

ances

▪ 16 Bit/400 kHz fast I²C interface with pro-

grammable slave addresses

▪ Very low current consumption in active, in

Power down and Standby mode

▪ Supply voltage 2.7 V to 3.6 V

▪ Temperature range -40°C to 125°C

▪ Deliverable in SMD package and as bare die

APPLICATIONS

▪ Precise conversion of average e.g. integral

photo current for optical sensors and arrays

(e.g. UV, VIS, IR) and other sensors with cur-

rent output

▪ In combination with ams Sensors Germany’s

color sensors: measurement of lights – chro-

maticity coordinates (XYZ CIE 1931, DIN 5033

and similar) or color temperatures to control

and process displays and backlights (e.g. LED,

CCFL)

▪ In combination with ams Sensors Germany’s

color and spectral sensors: measurement of re-

flective and/or transmitted light – chromaticity

coordinates (XYZ CIE1931, DIN5033 and simi-

lar) measurement of objects and surfaces for

analyzes, quality management, sorting, etc.

MARKET SEGMENTS

▪ Lighting SSL, Photometry

▪ Chemical and biochemical analyses

▪ Industrial process control

▪ Medical and environment instrumentation

▪ Industrial/commercial lighting

▪ Infotainment (backlights and video walls) and

monitors

▪ High quality consumer displays and tablets

 
www.ams.com 
 
AS89010 
V3.11 
FEATURES .................................................................................................................................. 1 
APPLICATIONS .......................................................................................................................... 1 
MARKET SEGMENTS ................................................................................................................... 1 
GENERAL DESCRIPTION ...................................................................................................... 4 
ELECTRICAL CHARACTERISTICS .......................................................................................... 5 
1  Absolute Maximum Ratings ........................................................................................ 5 
2  Recommended Operating Conditions ........................................................................... 5 
3  Electrical Characteristics ............................................................................................ 7 
BLOCK DIAGRAM ................................................................................................................. 8 
PIN ASSIGNMENT ................................................................................................................ 8 
DESCRIPTION OF FUNCTION ............................................................................................... 9 
1  Measurement Modes .................................................................................................. 9 
1.1  Continuous Measurement Mode (CONT Mode) ............................................................... 9 
1.2  Command Measurement Mode (CMD Mode) ................................................................ 10 
1.3  Synchronous Measurement Start Mode (SYNS Mode) ................................................... 10 
1.4  Synchronous Measurement Start and Stop Mode (SYND Mode) ..................................... 11 
2  Power Down ........................................................................................................... 12 
3  Standby ................................................................................................................. 12 
4  A/D Conversion....................................................................................................... 13 
4.1  Offset of the A/D Converter ...................................................................................... 15 
4.2  Divider .................................................................................................................. 15 
5  Conversion Time Measurement ................................................................................. 16 
6  I²C Communication ................................................................................................. 16 
6.1  Write Protocol ......................................................................................................... 17 
6.2  Read Protocol ......................................................................................................... 17 
6.3  I²C Addressable Register Space ................................................................................ 18 
6.4  Examples of using I²C-interface ................................................................................ 18 
DESCRIPTION OF REGISTERS ............................................................................................ 20 
1  Control Register Bank .............................................................................................. 20 
2  Operational State Register – OSR .............................................................................. 20 
2.1  API Generation Register – AGEN ............................................................................... 21 
2.2  Configuration Register – CREGL and CREGH ............................................................... 21 
2.3  Options Register - OPTREG ....................................................................................... 24 
2.4  Register – BREAK .................................................................................................... 24 
2.5  Register – EDGES ................................................................................................... 25 
3  Output Register Bank .............................................................................................. 25 
4  I²C Interface .......................................................................................................... 26 

ams.com db12348e_V3.11_preliminary_2017-07-06 Page 4 of 41

AS89010

V3.11

1 GENERAL DESCRIPTION

The ASIC AS89010 is a low noise sensor interface application specific standard product (ASSP) and suitable

for coupling of multi-channel optical sensors or sensors using current output. It converts input currents of

for example photodiodes (both polarities) to a digital output and realizes a continuous or triggered

measurement via current integration. Optional the integration time and sensitivity can be controlled by

external programming to extend the internal functions and parameters. The four signal channels convert

directly and simultaneously the input currents to a digital representation of the measured average. The

channels may be divided into three signal channels and one dummy channel for compensation of parasitic

currents. This ASIC is especially suitable for signal conditioning of photodiodes of array sensors like color

or other optical sensors with maximum of 4 channels per chip

. A configurable conversion gain factor and

integration time support a dynamic range

of 1 - 2.68E+08 and achieves an accuracy of up to 16 bit signal

resolution with sensitivity up to 20 fA/LSB.

The internal reference generations offers a high reliability. The converter is insensitive to a 50 Hz/60 Hz

external disturbances and was especially designed to accommodate high accuracy at high sensitivity

offering high robustness. Automatic Power down (sleep function) between subsequent measurements offers

operation with very low current c60onsumption. Further, it offers a wide range of reference currents

(1.25 nA to 5 µA), integration times (1 ms to 1 s), synchronized mode and other control modes adjustable

by user programming. The conversion data can be accessed via 16 bit/400 kHz fast I²C Interface with

programmable slave addresses. Measurement of actual integration time for a full triggered measurement

can be performed.

AS89010’s supported operating modes depending on required performance:

▪ CMD Mode – single measurement and conversion (controlled via I²C bus),

▪ CONT Mode - continuous measurement and conversion (periodically recurring measuring cycles)

until “Stop” controlled via I²C bus,

▪ SYN[x] modes - synchronized measurement and conversion:

– [SYNS Mode] synchronization of start,

– [SYND Mode] synchronization of start and stop of measuring cycle on the falling edge of the

SYN pin.

The settings for the input current range and integration time are not affected by alternative modes. Further

the converter supports functions like Power down and Standby. It represents a low power solution and is

also suitable for mobile applications.

Based on the high flexibility the AS89010 is suitable as converter for a width range of multi-channel sensors

with current output. The device achieves a high dynamic range especially in (back) light applications and

in measurements of integral intensity of pulsed light. The combination of ams Sensors Germany’s color

sensors with AS89010 is excellently suited for photometry applications (brightness, color coordinate and/or

color temperature), for determining current values for control of spectrally mixed LED light sources or as

sensors for display and (back)light calibration and mobile devices for light measurement. The sensor signal

IC is available in SMD housing or can be supplied as a bare die.

Upon consideration of that I²C address more ASICs may be used in parallel to a sensor to convert more than 4 sensor channels. In that

case special operating notes must be considered.

𝐷𝑦𝑛𝑎𝑚𝑖𝑐 𝑅𝑎𝑛𝑔𝑒 =

𝑀𝐴𝑋 𝑚𝑒𝑎𝑠𝑢𝑟𝑒𝑎𝑏𝑙𝑒 𝑣𝑎𝑙𝑢𝑒 = 𝑀𝑎𝑥. 𝐹𝑢𝑙𝑙 𝑆𝑐𝑎𝑙𝑒 𝑅𝑎𝑛𝑔𝑒

𝑀𝐼𝑁 𝑚𝑒𝑎𝑠𝑢𝑟𝑒𝑎𝑏𝑙𝑒 𝑣𝑎𝑙𝑢𝑒 = 𝑀𝑖𝑛. 𝐿𝑒𝑎𝑠𝑡 𝑆𝑖𝑔𝑛𝑖𝑓𝑖𝑐𝑎𝑛𝑡 𝐵𝑖𝑡

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