
Ver: 2.5
Dec 14, 2004
TEL: 886-3-5788833
http://www.gmt.com.tw
3
G767
Global Mixed-mode Technology Inc.
Electrical Characteristics (continued)
(Vcc = + 3.3V, TA = 0 to +85°C, unless otherwise noted.)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
SMBus Interface
Logic Input High Voltage
STBY
, SMBCLK, SMBDATA; Vcc = 3V to 5.5V
2.2
---
V
Logic Input Low Voltage
STBY
, SMBCLK, SMBDATA; Vcc = 3V to 5.5V
---
0.8
V
Logic Output Low Sink Current
ALERT
, SMBDATA forced to 0.4V
6
---
mA
ALERT
Output High Leakage Current
ALERT
forced to 5.5V
---
1
A
Logic Input Current
Logic inputs forced to Vcc or GND
-1
---
1
A
SMBus Input Capacitance
SMBCLK, SMBDATA
---
5
---
pF
SMBus Clock Frequency
(Note 4)
DC
---
100
kHz
SMBCLK Clock Low Time
tLOW , 10% to 10% points
4.7
---
s
SMBCLK Clock High Time
tHIGH , 90% to 90% points
4
---
s
SMBus Start-Condition Setup Time
4.7
---
s
SMBus Repeated Start-Condition Setup Time tSU : STA , 90% to 90% points
500
---
ns
SMBus Start-Condition Hold Time
tHD: STA , 10% of SMBDATA to 90% of SMBCLK
4
---
s
SMBus Start-Condition Setup Time
tSD: STO , 90% of SMBDATA to 10% of SMBDATA
4
---
s
SMBus Data Valid to SMBCLK Rising-Edge
Time
tSU: DAT , 10% or 90% of SMBDATA to 10% of
SMBCLK
800
---
ns
SMBus Data-Hold Time
tHD : DAT (Note 5)
0
---
s
SMBCLK Falling Edge to SMBus Data-Valid
Time
Master clocking in data
---
1
s
Electrical Characteristics
(Vcc = + 3.3V, TA = -5.5 to + 125°C, unless otherwise noted.) (Note 6)
PARAMETER
CONDITIONS
MIN TYP MAX UNITS
ADC and power supply
Temperature Resolution (Note 1)
Monotonicity guaranteed
8
---
Bits
TA = +60°C to +100°C
-2
---
2
Initial Temperature Error, Local
Diode (Note 2)
TA = -55°C to +125°C
-3
---
3
°C
TR = +60°C to +100°C
-3
---
3
Temperature Error, Remote Diode
(Notds2 and 3)
TR = -55°C to +125°C
-5
---
5
°C
Supply-Voltage Range
3.0
---
5.5
V
Conversion Time
From stop bit to conversion complete (both channels)
94
125 156
ms
Conversion Rate Timing Error
Auto-convert mode
-25
---
25
%
SMBus Interface
Vcc = 3V
2.2
---
Logic Input High Voltage
STBY, SMBCLK, SMBDATA
Vcc = 5.5V
2.4
---
V
Logic Input Low Voltage
STBY, SMBCLK, SMBDATA; Vcc = 3V to 5.5V
---
0.8
V
Logic Output Low Sink Current
ALERT, SMBDATA forced to 0.4V
6
---
mA
ALERT
Output High Leakage Current
ALERT forced to 5.5V
---
1
A
Logic Input Current
Logic inputs forced to Vcc or GND
-2
---
2
A
Note1: Guaranteed but not 100% tested.
Note2: Quantization error is not included in specifications for temperature accuracy. For example, if the G767 de-
vice temperature is exactly +66.7°C, or +68°C (due to the quantization error plus the +1/2°C offset used
for rounding up) and still be within the guaranteed ±1°C error limits for the +60°C to 100°C temperature
range. See Table2.
Note3: A remote diode is any diode-connected transistor from Table1. TR is the junction temperature of the re-
mote of the remote diode. See Remote Diode Selection for remote diode forward voltage requirements.
Note4: The SMBus logic block is a static design that works with clock frequencies down to DC. While slow operation is
possible, it violates the 10kHz minimum clock frequency and SMBus specifications, and may monopolize the bus.
Note5: Note that a transition must internally provide at least a hold time in order to bridge the undefined region
(300ns max) of SMBCLK’s falling edge.
Note6: Specifications from -55°C to +125°C are guaranteed by design, not production tested.