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Part: AME7106CPL
Category:
Description: 3-1/2 Digit A/D Converter High Accuracy, Low Power
Company: Analog Micro
Datasheet: Download AME7106CPL datasheet File size : 543 kB
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AME, Inc.
AME7106/AME7106A/AME7106R AME7107/AME7107A/AME7107R 3-1/2 Digit A/D Converter High Accuracy, Low Power
n Key Features
l 100µV Resolution l High Impedance Differential Inputs l Differential Reference l Drive LCD (AME7106) or LED (AME7107) Directly l Four New Convenient Features (AME7106A/AME7107A) l Display-Hold l Low-Battery Indication l Integration Status Indication l De-Integration Status Indication
n General Description
The AME7106 and AME7107 family are high performance, low power, 3-1/2 digit, dual-slope integrating A/ D converters, with on-chip display drivers. The AME7106 is designed for a single battery operated system, will drive non-multiplexed LCD display directly. The AME7107 is designed for a dual power supply system, will directly drive common anode LED display. These A/D converters are inherently versatile and accurate. They are immune to the high noise environments. The true differential high impedance inputs and d i f f e r e n t i a l reference are very useful for making ratiometric measurement, such as resistance, strain gauge and bridge transducers. The built-in auto-zero feature automatically corrects the system offset without any external adjustments. Display-hold, low-battery flag, integration and de-integration status flags are four additional features which are available in the 44-pin package, AME7106ACKW and AME7107ACKW.
n Applications
l Digital multimeter l pH meter l Capacitance meter l Thermometer l Digital Panel meter l Photometer
n Typical Operating Circuit
* For the operating circuit of the reverse-pins version, please refer to pin configuration on page 4 and pin description on page 5 & 6
1
AME, Inc.
AME7106/AME7106A/AME7106R AME7107/AME7107A/AME7107R 3-1/2 Digit A/D Converter High Accuracy, Low Power
n Absolute Maximum Ratings
AME7106
Supply Voltage (V+ to V-) Analog Input Voltage (Either inputs) Referenc e Input Voltage (Either inputs) Clock Input Power Dissipation Operating Temperature Storage Temperature Lead Temperature (Soldering 60 seconds) 12V V+ TO VV+ TO VTes t to V+ 800mW 0oC to 70oC -55oC to 150oC 300oC
AME7107
Supply Voltage V+ VAnalog Input Voltage (Either inputs) Reference Input Voltage (Either inputs) Clock Input Power Dissipation Operating Temperature Storage Temperature Lead Temperature (Soldering 60 seconds)
6V -6V V+ to VV+ to VGnd to V+ 800mW 0 C to 70 C -55 C to 150 C o 300 C
o o o o
Static sensitive device. Unused devices must be stored in the conductive material. Protect device from static discharge and static field. Stresses exceed the above Absolute Maximum Ratings may cause permanent damage to the device. Exposure to Absolute Maximum Rating Conditions for extended periods may affect the reliability of the device.
2
AME, Inc.
AME7106/AME7106A/AME7106R AME7107/AME7107A/AME7107R 3-1/2 Digit A/D Converter High Accuracy, Low Power
n Ordering Information
Pa rt Number AME7106CPL AME7106RCPL AME7106ACKW AME7106Y AME7107CPL AME7107RCPL AME7107ACKW AME7107Y Displa y LCD LCD LCD LCD LED LED LED LED Ma rking AME7106CPL YYWW AME7106RCPL YYW W AME7106ACKW YYW W AME7106Y YYWW AME7107CPL YYWW AME7107RCPL YYWW AME7107ACKW YYWW AME7107Y YYWW Pa cka ge 40 Pin PDIP 40 Pin PDIP 44 Pin PQFP 44 Pin Dice 40 Pin PDIP 40 Pin PDIP 44 Pin PQFP 44 Pin Dice Pin Layout Normal Reverse Normal Normal Normal Reverse Normal Normal Te mp. Range 0oC to 70oC 0oC to 71oC 0oC to 72oC 0oC to 73oC 0oC to 74oC 0oC to 75oC 0oC to 76oC 0oC to 77oC
3
AME, Inc.
AME7106/AME7106A/AME7106R AME7107/AME7107A/AME7107R 3-1/2 Digit A/D Converter High Accuracy, Low Power
n Electrical Characteristics
Unless otherwise noted, AME7106 & AME7107 are specified at TA = 25OC, fclock = 48KHz. Supply voltage = 9V (V+ to V-)
Parameter
Zero Input Reading Ratiometric Reading Roll-Over Error (Difference in Reading for Equal Positive and Negative Reading Near Full-Scale) Linearity (Max. Deviation From Best Straight Line Fit) Common-Mode Rejection Ratio Noise (Pk-Pk Value Not Exceeded 95% of Time) Leakage Current at Input Zero Reading Drift Supply Current (Excluding LED current for 7107) Analog Common Voltage (With respect to V+) Temp. Coeff. of Analog Common (With respect to V+) Low Battery Flag Test Pin Voltage (AME7106 only) LCD Segment Drive Voltage (AME7106 only) Backplane Drive Voltage (AME7106 only) Segment Sinking Current (Except Segment AB4) (AME7107 only) Segment Sinking Current (Segment AB4) (AME7107 only)
Conditions
Vin = 0V Full-Scale = 200.0mV Vin = Vref = 100.0mV
Min
Typ
0
Max
Unit
Digital Reading
999 -1
999/1000 0.2
1000 +1
Digital Reading Counts
-Vin=+Vin 200.0mV
Full-Scale = 200.0mV Vcm = 1V, Vin =0V Full-Scale = 200.0mV Vin = 0V Full-Scale = 200.0mV Vin = 0V Vin = 0V, 0OC to 70OC Vin = 0V
-1
0.2 50 15 1 0.2 0.8
+1
Counts µV/V µV
10 1 1.2
pA
O µV/ C mA
25K Between Common and V+ 25K Between Common and V+ 0OC TA 70OC V+ to VWith respect to V+ V+ to V- = 9V V+ to V- = 9V V+ = 5.0V Segment Voltage = 3V V+ = 5.0V Segment Voltage = 3V
2.8
3.0 50
3.2 75
V ppm/OC
6.3 4 4 4 5
7.0 5 5 5 8.0
7.7 6 6 6
V V V V mA
10
16
mA
Notes: 1. Input voltage may exceed the supply voltages provided the input current is limited to ±100µA. 2. Dissipation rating assumes a device is mounted with all leads soldered to printed circuit board.
4
AME, Inc.
AME7106/AME7106A/AME7106R AME7107/AME7107A/AME7107R 3-1/2 Digit A/D Converter High Accuracy, Low Power
n Pin Configurations
5
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