TC7116 View Datasheet(PDF) - TelCom Semiconductor Inc => Microchip

Part Name

Description

Manufacturer

TC7116

3-1/2 DIGIT ANALOG-TO-DIGITAL CONVERTERS WITH HOLD

TelCom Semiconductor Inc => Microchip 

3-1/2 DIGIT ANALOG-TO-DIGITAL

CONVERTERS WITH HOLD

1 TC7116

TC7116A

TC7117

TC7117A

ELECTRICAL CHARACTERISTICS (Cont.)

Parameter

Temperature Coefficient of Analog Common

Test Conditions

"I" Device: –25°C to +85°C

Min

Typ

Max Unit

2

—

—

75

ppm/°C

(With Respect to Positive Supply)

25 kΩ Between Common and

Positive Supply (TC7116A/TC7117A)

TC7116/TC7116A ONLY Peak-to-Peak

V+ to V– = 9V

4

5

6

V

Segment Drive Voltage

(Note 5)

TC7116/TC7116A ONLY Peak-to-Peak

V+ to V– = 9V

4

5

6

V

Backplane Drive Voltage

TC7117/TC7117A ONLY Segment

Sinking Current (Except Pin 19)

(Note 5)

V+ = 5V

Segment Voltage = 3V

5

8

—

mA

3

TC7117/TC7117A ONLY Segment

V+ = 5V

10

16

—

mA

Sinking Current (Pin 19 Only)

Segment Voltage = 3V

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

2. Dissipation rating assumes device is mounted with all leads soldered to printed circuit board.

3. Unless otherwise noted, specifications apply at TA = +25°C, fCLOCK = 48 kHz. TC7116/TC7116A and TC7117/TC7117A are tested in the

circuit of Figure 1.

4. Refer to "Differential Input" discussion.

5. Backplane drive is in-phase with segment drive for “OFF” segment, 180° out-of-phase for “ON” segment. Frequency is 20 times

conversion rate. Average DC component is less than 50 mV.

6. The TC7116/TC7116A logic inputs have an internal pull-down resistor connected from HLDR, pin 1 to TEST, pin 37.

The TC7117/TC7117A logic inputs have an internal pull-down resistor connected from HLDR, pin 1 to GND, pin 21.

4

5

6

7

TELCOM SEMICONDUCTOR, INC.

8

3-205

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