PGA309_05 BURR-BROWN [Burr-Brown Corporation], PGA309_05 Datasheet - Page 7

• Manufacturer Part Number: PGA309_05
• Description: Voltage Output PROFRAMMABLE SENSOR CONDITIONER
• Manufacturer: BURR-BROWN [Burr-Brown Corporation]

ELECTRICAL CHARACTERISTICS (continued)
BOLDFACE limits apply over the specified temperature range: T
T A = +25°C, V SA = V SD = +5V (V SA = V SUPPLY ANALOG , V SD = V SUPPLY DIGITAL ; V SA must equal V SD ), GND D = GND A = 0, and V REF = REF IN /REF OUT = +5V,
unless otherwise noted.
PARAMETER
POWER SUPPLY
V SA , V SD
I SA + I SD , Quiescent Current
POWER-ON RESET
Power-Up Threshold
Power-Down Threshold
TEMPERATURE RANGE
Specified Performance
Operational − Degraded Performance
(1) PGA309 total differential gain from input (V IN1 −V IN2 ) to output (V OUT ). V OUT / (V IN1 −V IN2 ) = (Front-End PGA gain) (Output Amplifier gain) (Gain DAC).
(2) RTI = referred to input. RTO = referred to output.
(3) Linear input range is the allowed min/max voltage on the V IN1 and V IN2 pins for the input PGA to continue to operate in a linear region. The allowed
(4) Unless limited by over/under-scale setting.
(5) When V EXC is enabled, a minimum reference selector circuit becomes the reference for the comparator threshold. This minimum reference
(6) Lookup Table allows multislope compensation over temperature. Lookup Table has access to 17 calibration points consisting of 3 adjustment
common-mode and differential voltage is dependent upon gain and offset settings. Refer to the Gain Scaling section for more information.
selector circuit uses V EXC − 100mV and V SA − 1.2V and compares the V INX pin to the lower of the two references. This ensures accurate fault
monitoring in conditions where V EXC might be higher or lower than the input CMR of the PGA input amplifier relative to V SA .
values (Tx, Temperature, ZMx, Zero DAC, GMx, Gain DAC) that are stored in 16-bit data format (17x3x16 = Lookup Table size).
www.ti.com
V SA = V SD = +5V, without Bridge Load
CONDITIONS
V SA Rising
V SA Falling
A
= −40°C to +125°C
SBOS292B − DECEMBER 2003 − REVISED JANUARY 2005
MIN
−40
−55
2.7
PGA309
TYP
1.2
2.2
1.7
+125
+150
MAX
5.5
1.6
2.7
PGA309
UNITS
mA
°C
°C
V
V
V
7