TS3002 Datasheet, PDF (1/13 Pages) Touchstone Semiconductor Inc – A 1V/1uA Easy-to-Use Silicon Oscillator/Timer

TS3002
A 1V/1µA Easy-to-Use Silicon Oscillator/Timer
FEATURES
 Ultra Low Supply Current: 1µA at 25kHz
 Supply Voltage Operation: 0.9V to 1.8V
 Programmable Frequency Range:
o 5.2kHz ≤ FOUT ≤ 90kHz (BOOST = GND)
o 5.2kHz ≤ FOUT ≤ 290kHz (BOOST = VDD)
 FOUT Period Drift: 0.044%/°C
 PWMOUT Duty Cycle Range: 12% to 90%
 Single Resistor and Capacitor Set Output
Frequency
 Output Driver Resistance: 160Ω
APPLICATIONS
Portable and Battery-Powered Equipment
Low-Parts-Count Nanopower Oscillator
Compact Nanopower Replacement for Crystal and
Ceramic Oscillators
Nanopower Pulse-width Modulation Control
Nanopower Pulse-position Modulation Control
Nanopower Clock Generation
Nanopower Sequential Timing
DESCRIPTION
The TS3002 is the industry’s first and only single-
supply CMOS oscillator fully specified to operate at
1V while consuming a 1µA supply current at an
output frequency of 25kHz. This oscillator is compact,
easy-to-use, and versatile. Optimized for ultra-long
life, battery-powered applications, the TS3002 is the
first oscillator in the “NanoWatt Analog™” high-
performance analog integrated circuits portfolio. The
TS3002 can operate from single-supply voltages from
0.9V to 1.8V.
Requiring only a resistor and a capacitor to set the
output frequency, the TS3002 represents a 66%
reduction in pcb area and a factor-of-10 reduction in
power consumption over other CMOS-based
integrated circuit oscillators. When compared against
industry-standard 555-timer-based products, the
TS3002 offers up to 93% reduction in pcb area and
four orders of magnitude lower power consumption.
The TS3002 is fully specified over the -40°C to +85°C
temperature range and is available in a low-profile, 8-
pin 2x2mm TDFN package with an exposed back-
side paddle.
TYPICAL APPLICATION CIRCUIT
Table 1: FOUT vs RSET, CSET = 7.9pF
RSET (MΩ) FOUT (kHz)
1
106
2.49
43
4.32
25
6.81
16
9.76
11
Table 2: FOUT vs CSET, RSET = 4.32MΩ
CSET (pF) FOUT (kHz)
5
39
7.9
25
10
19
15
13
20
10
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