BAYLI ICL7106P, ICL7107P Datasheet

Bay Linear, Inc

2478 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone] www.baylinear.com

3-1/2 Digit LCD/LED Display, A/D Converter

ICL7106 / 7107

Pin Connection

Ordering Information

Device Package Temp.

ICL7106P 40PDIP

0 to 70°C

ICL7107P 40PDIP

0 to 70°C

Description

The ICL7106 and ICL 7107 are high performance, low power
3-1/2 digit A/D converters. Included are seven segment
decoders, Display drivers, a reference and a clock. The ICL
7106 is designed to interface with a liquid crystal display
(LCD and includes a multiplexed backplane drive; the ICL
7107 will directly drive an instrument size light emitting diode
(LED) display.

The ICL7106 and ICL 7107 bring together a combination of
high accuracy, versatility and true economy. True differential
inputs and reference are useful in all systems, but give the
designer advantage when measurin g load cells, strain gauges,
and other Bridge type transducers.

By providing the true economy of a single power supply
operation, the ICL7106 enables a high performance panel
meter to be built with the addition of only 10 passive
components and a display.

Features

• Guaranteed Zero Reading for OV Input

on All Scales

• True Polarity at Zero for Precise Null

Detection

• True Differential Input and Reference,

Direct Display Drive

• Low Noise less than 15µµµµVp-p

• On chip clock and reference

• Low Power Dissipation, ≤≤≤≤10mW (typ.)

• No Additional Active Circuits Required

• Available in Small Outline Surface Mount

Package, 44MQFP

Applications

• 7106 for LCD

• 7107 for LED

• Measuring Bridge Type Transducers

• Instrumentation

• Digital Thermometers

1 V+
2 D1
3 C1
4 B1
5 A1
6 F1
7 G1
8 E1
9 D2
10 C2
11 B2
12 A2
13 F2
14 E2
15 D3
16 B3
17 F3
18 E3
19 AB4
20 POL

OSC1 40

BP 21

G3 22

A3 23

C3 24

G2 25

V- 26

IN HI 31

IN LO 30

A-Z 29

BUFF 28

INT 27

TEST 37

REF HI 36

REF LO 35

C

REF

+

34

C

REF

-

33

COM 32

OSC2 39
OSC3 38

(

100’s

)

(

100’s

)

(

10’s

)

(

1’s

)

(

1000

)

(

Minus

)

Bay Linear

Bay LinearBay Linear

Bay Linear

ICL7106P

For 7107, Pin 21 is GND

’

Bay Linear

Bay LinearBay Linear

Bay Linear

Inspire the Linear Power

Ins

p

ire the Linear PowerInspire the Linear Power

Ins

p

ire the Linear Power

Bay Linear, Inc

2478 Armstrong Street, Livermore, CA 94550 Tel: [phone], Fax: [phone] www.baylinear.com

ICL7106 / 7107

Absolute Maximum Rating Thermal Information

Parameter Parameter

Input Supply Voltage Thermal Resistance, Typical

θ

JA

(°C/W)

ICL7106 , V+ to V-

15V PDIP 50
ICL7107, V+ to GND 6V MQFP 75
ICL7107, V- to GND

-

9V

Max. Junction Temperature

150°C

Analog Input Voltage (Either Input) (Note 1)

V+ to V

-

Max. Storage Temperature Range

-65°C to 150°C

Reference Input Voltage (Either Input)

V+ to V

-

Max. Lead Temperature

(Soldering 10S)
MQFP – Lead Tips Only

300°C

Clock Input

ICL7106 TEST to V+ Operating Temperature Range

0°C to 70°C

ICL7107 GND to V+

Electrical Characteristics

(TA = 25°C , F

CLOCK

= 48kHz unless otherwise specified, see Note 2)

Parameter Conditions MIN TYP MAX UNIT
System Performance

Zero Input Reading

VIN = 0.0V, Full Scale = 200mV

-000.0

±

000.0

±

000.0

Digital Reading

Ratiometric Reading

V

IN

= V

REF

, V

REF

= 100mV

999/1000

Rollover Error

-V

IN

= +VIN ≅ 200Mv
Difference In Rea ding for Eq ual Positive
and Negative Inputs Near Full Scale

-1 +1 Counts

Linearity

Full Scale = 200mV or Full Scale = 2V
Maximum Deviation from Best straight
Line fit (Note 3)

-1 +1 Counts

Common Mode Rejection Ratio

V

CM

= 1V, VIN = 0V, Full Scale =
200mV (Note 3)

50

µ

V/V

End Power Supply Character
V+ Supply Current

V

IN

= 0 (Does Not Include LED Current

for ICL7107)

1.8 mA

End Power Supply Character
V- Supply Current

ICL7107 Only

1.8 MA

Common Pin Analog Common
Voltage

25 kΩ Between Common and Positive
Supply ( With Respect to + Supply

2.4 3.2 V

Display Driver ICL7106 Only

Pk-Pk Segment Drive Voltage
Pk-Pk Backplane Drive Voltage

V+ = to V- = 9V

4 5 6 V

Display Driver ICL7107 Only

Segment Sinking Current

(Except Pin 19 and 20)

V+ = 5V, Segment Voltage = 3V

5

8

mA
Pin 19 Only 10 16 mA
Pin 20 Only 4 7 mA

Notes:

1. Input voltages may exceed the supply voltages provided the input current is limited to ±100µA.

2. Unless otherwise noted, specifications apply to both the ICL7106 and ICL7107 at T

A

= +25°C, f

CLOCK

= 48kHz. ICL7107 is tested in the circuit

of Figure 1. ICL7107 is tested in the circuit of Figure 2.

3. Not Tested, guaranteed by design