Added driver for Basel current preamplifier.

qcodes/instrument_drivers/basel/sp983c.py

@@ -0,0 +1,45 @@
+from qcodes.instrument.base import Instrument
+from qcodes.utils.validators import Enum
+
+
+class SP983C(Instrument):
+    """
+    A virtual driver for the Basel SP 983 and SP 983C current to voltage
+    converter.
+
+    This driver supports both the SP 983 and SP 983C models. These differ only
+    in their handling of input offset voltage. It is the responsibility of the
+    user to capture the input offset, (from the voltage supply) and compensate
+    that as needed depending on the model.
+
+    Note that, as this is a purely virtual driver, there is no support
+    for the the remote control interface (SP 983a). It is the responsibility of
+    the user to ensure that values set here are in accordance with the values
+    set on the instrument.
+    """
+
+    def __init__(self, name, **kwargs):
+        super().__init__(name, **kwargs)
+
+        self.add_parameter('gain',
+                           initial_value=1e8,
+                           label='Gain',
+                           unit='V/A',
+                           get_cmd=None, set_cmd=None,
+                           vals=Enum(1e09, 1e08, 1e07, 1e06, 1e05))
+
+        self.add_parameter('fcut',
+                           initial_value=1e3,
+                           label='Cutoff frequency',
+                           unit='Hz',
+                           get_cmd=None, set_cmd=None,
+                           vals=Enum(30., 100., 300., 1e3, 3e3, 10e3, 30e3,
+                                     100e3, 1e6))
+
+    def get_idn(self):
+        vendor = 'Physics Basel'
+        model = 'SP 983(c)'
+        serial = None
+        firmware = None
+        return {'vendor': vendor, 'model': model,
+                'serial': serial, 'firmware': firmware}