13 POWER SUPPLIES AND ANALOG GROUND

The MF8 can be operated from single or dual-polarity power

supplies For dual-supply operation the analog ground (pin

4) should be connected to system ground When single sup-

Figures

3 and 4 The input signal should either be capacitively cou-

ommended that each power supply pin be bypassed to

ground with at least a 01 mF ceramic capacitor In single

AGND should be bypassed to system ground

TLH8694 – 10

(a) MF8 Driven with CMOS Logic Level Clock

TLH8694 – 11

(b) MF8 Driven with TTL Logic Clock

1



J

V

T

a

V

T

b

J

1

169 RC

TLH8694 – 12

(c) MF8 Driven with the Schmitt Trigger Oscillator

FIGURE 4 Single supply operation The AGND pin must be biased to mid-supply

The input signal should be dc biased to mid-supply or capacitor-coupled to the input pin

9