Datasheet LT1995 (Analog Devices) - 5

LT1995
ELECTRICAL CHARACTERISTICS The
●
denotes the specifications which apply over the –40
°
C
≤
TA
≤
85
°
C. Difference Amplifier Configuration. VREF = VCM = 0V and unused gain pins are unconnected, unless otherwise noted. SYMBOL PARAMETER CONDITIONS VSUPPLY MIN TYP MAX UNITS
VOS Input Offset Voltage G = 1 (MS10) ±15V ● 1.2 7.5 mV Referred to Input (Note 7) G = 1 (DD10) ±15V ● 1.6 13 mV G = 2 (MS10) ±15V ● 0.9 6 mV G = 2 (DD10) ±15V ● 1.2 10 mV G = 4 (MS10) ±15V ● 0.7 5.5 mV G = 4 (DD10) ±15V ● 0.9 8.5 mV G = 1 (MS10) ±5V ● 1.1 7.5 mV G = 1 (DD10) ±5V ● 1.4 13 mV G = 1 (MS10) ±2.5V ● 1.1 7.5 mV G = 1 (DD10) ±2.5V ● 1.5 13 mV VOS TC Input Offset Voltage Drift G = 1 (MS10) ±15V ● 10 26 µV/°C Referred to Input (Note 9) G = 1 (DD10) ±15V ● 10 35 µV/°C VOS_OA Op Amp Input Offset Voltage G = 1 (MS10) ±2.5V, ±5V, ±15V ● 0.6 3.75 mV (Note 10) G = 1 (DD10) ±2.5V, ±5V, ±15V ● 0.8 6.5 mV Input Voltage Range G = 1 ±15V ● ±15 ±15.5 V ±5V ● ±5 ±5.5 V ±2.5V ● ±1 ±1.5 V CMRR Common Mode Rejection Ratio VCM = ±15V, G = 1 ±15V ● 62 77 dB Referred to Input VCM = ±15V, G = 2 ±15V ● 68 83 dB VCM = ±15V, G = 4 ±15V ● 72 86 dB VCM = ±5V, G = 1 ±5V ● 61 72 dB VCM = ±1V, G = 1 ±2.5V ● 57 66 dB PSRR Power Supply Rejection Ratio P1 = M1 = 0V, G = 1, VS = ±2.5V to ±15V ● 74 86 dB VOUT Output Voltage Swing RL = 1k ±15V ● ±13 ±14 V RL = 500Ω ±15V ● ±12.5 ±13.5 V RL = 500Ω ±5V ● ±3.3 ±4 V RL = 500Ω ±2.5V ● ±1.1 ±2 V ISC Short-Circuit Current G = 1 ±15V ● ±50 ±105 mA SR Slew Rate G = –2, VOUT = ±12V, P2 = 0V ±15V ● 550 900 V/µs Measured at VOUT = ±10V IS Supply Current G = 1 ±15V ● 8.0 11.0 mA ±5V ● 7.6 10.4 mA
Note 1:
Absolute Maximum Ratings are those values beyond which the life
Note 6:
Thermal resistance (θJA) varies with the amount of PC board metal of a device may be impaired. connected to the leads. The specified values are for short traces connected
Note 2:
The inputs are protected by diodes connected to V + – to the leads. If desired, the thermal resistance can be reduced slightly in S and VS . If an input goes beyond the supply range, the input current should be the MS package to about 130°C/W by connecting the used leads to a limited to 10mA. larger metal area. A substantial reduction in thermal resistance down to
Note 3:
A heat sink may be required to keep the junction temperature about 50°C/W can be achieved by connecting the Exposed Pad on the below absolute maximum. bottom of the DD package to a large PC board metal area which is either open-circuited or connected to V –.
Note 4:
The LT1995C and LT1995I are guaranteed functional over the S operating temperature range of –40°C to 85°C.
Note 7:
Input offset voltage is pulse tested and is exclusive of warm-up drift. V
Note 5:
The LT1995C is guaranteed to meet specified performance from OS and VOS TC refer to the input offset of the difference amplifier configuration. The equivalent input offset of the internal op amp can be 0°C to 70°C. The LT1995C is designed, characterized and expected to calculated from V meet specified performance from –40°C to 85°C but is not tested or QA OS_OA = VOS • G/(G +1). sampled at these temperatures. The LT1995I is guaranteed to meet
Note 8:
Full Power bandwidth is calculated from the slew rate measure- specified performance from –40°C to 85°C. ment: FPBW = SR/2πVP.
Note 9:
This parameter is not 100% tested.
Note 10:
The input offset of the internal op amp is calculated from the input offset voltage: VOS_OA = VOS • G/(G +1). 1995fb 5