TSM9117 TOUCHSTONE [Touchstone Semiconductor Inc], TSM9117 Datasheet - Page 11

• Manufacturer Part Number: TSM9117
• Description: 1.6V Nanopower Comparators with/without Internal References
• Manufacturer: TOUCHSTONE [Touchstone Semiconductor Inc]

Guaranteed to operate from +1.6V supplies, the
TSM9117 and the TSM9118 comparators only draw
600nA supply current, feature a robust input stage
that can tolerate input voltages 200mV beyond the
power supply rails, and include an on-board +1.252V
±1.75% voltage reference. The comparator-only
TSM9119 and the TSM9120 have the same attributes
and only draw a supply current of 350nA. To insure
clean output switching behavior, all four analog
comparators feature 4mV internal hysteresis. The
TSM9117 and the TSM9119’s push-pull output
drivers were designed to minimize supply-current
surges while driving ±5mA loads with rail-to-rail
output
TSM9118 and TSM9120 can be connected to supply
voltages above V
above V
PIN FUNCTIONS
BLOCK DIAGRAMS
DESCRIPTION OF OPERATION
TSM9117_20DS r1p0
TSM9117/TSM9118
swings.
EE
SC70
. Where wired-OR logic connections are
—
—
1
2
3
4
5
CC
The
to an absolute maximum of 6V
1, 5, 8
SO
—
6
4
3
2
7
open-drain
TSM9119/TSM9120
SC70
—
—
1
2
3
5
4
output
1, 5, 8
SO
—
4
3
7
2
6
stage
NAME
OUT
VCC
VEE
REF
IN+
NC
IN-
needed, their open-drain output stages make it easy
to use these analog comparators.
Input Stage Circuitry
The robust design of the analog comparators’ input
stage can accommodate any differential input voltage
from V
typically ±0.15nA so long as the applied input voltage
remains between the supply rails. ESD protection
diodes - connected internally to the supply rails -
protect
conditions. However, if the applied input voltage
exceeds either or both supply rails, an increase in
input current can occur when these ESD protection
diodes start to conduct.
TSM9117-TSM9120
FUNCTION
Comparator Output
Negative Supply Voltage
Comparator Noninverting Input
1.252V Reference Output and
Comparator Inverting Input
Positive Supply Voltage
Comparator Inverting Input
No Connection. Not internally connected.
EE
- 0.2V to V
comparator
CC
+ 0.2V. Input bias currents are
inputs
against
overvoltage
Page 11
RTFDS